Resetting Your Laptop Lithium Battery Pack After You Rebuild it.
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- Опубликовано: 27 авг 2024
- Here are some tips for getting your laptop battery pack to work again, after you rebuild it.
Wayne@WayneSallee.com
Here is a common fuse that is used in such bms:\
www.aliexpress...
Another type of fuse that is sometimes used can bee seen at www.aliexpress...
These batteries use a 3 way fuse that is blow by the control chip. The fuse blows for an undervoltage or if a cell is disconnected. If you put a solder blob it will try to blow it again as the fault is saved in the eeprom memory of the controller chip. The only way to get it working again is to reset the fault. This is done by resetting the PFF permanent failure flag using an SMBus device.
Yes, and those usually cost a good deal of money, so most people don't have one.
Hey guys, you can try this method but don't expect too much to succeed. Many batteries have complex control chips (like those from Texas Instruments) that will just not reset, no matter what kind of jumpstart you try. When cells voltage drop below a certain value the chip will trigger a fault status, and cutts Vcc output. The only way of getting your battery to work again in this case is to get a USB to VPIO interface to read then change chip parameters, and if you ain't ready for that better go spend 35 bucks and just buy a new battery.
Yes many of them self destruct, but many of them will not self destruct. It's a shame that the bms can't be purchased separately. I am building a laptop with a non-priority bms that won't kill itself, and that can be repurchased any time.
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
quite hard to get replacement batteries for 20+ old laptops.
In case of my old compaq armada 7770dmt it's impossible.
Got three broken batteries, one did work once but when charging to like 69% it suddenly stopped charging and never worked again.
However the battery voltage was just fine as every cell was well over 3,7V so dunno what happened.
Take small wire and put for one second from battery + and BMS+ and then work again. Thanks
Your welcome.
Glad it helped.
The right to repair is important. So many manufactures don't want us to be able to repair.
Wayne Sallee
Wayne@WayneSallee.com
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> Did you connect a small wire for a second between the positive (+)
> battery and the positive BMS? Can you make a drawing explaining?
Basically you just need to provide
power to the BMS. So the first step is to figure out where the +
and the - is for power in to the BMS. Then provide appropriate
power. The easiest way to do that if you have access to the
battery is to simply use a wire connected to the battery to
provide power. But, when using the battery for power, you only
need to provide power to the one that is switched, usually this is
the +, but sometimes the -. You can provide power to both if you
want. Make sure that you provide - to the -, and + to the +.
Wayne Sallee
Wayne@WayneSallee.com
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The blown fuse is intensional. The controller sends a charge to blow the fuse if it detects an overcharge or under charge condition or the charge recharge count reaches a predermined level to prevent the battery from being put back into use. Newer systems use a firmware locking flag which the controller sets for the same purpose and the equipment for resetting that flag is horrendously expensive initially and is ongoing on an annual basis.
It could be easily done by setting a transistor to ground, that is connected to the power in near the fuse.
Have you seen any evidence of a controller sending a charge to blow the fuse?
Wayne Sallee
Wayne@WayneSallee.com
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@@WayneSallee-comTech hi, mine is doing that,...... as soon as I connect the new cells (4) the fuse starts going wild hot !!! .. i researchead a little bit and retrieved the controller datasheet where TI explains that. The controller in mines is Texas Instruments BQ3055
@@raraujo4951 It's called a "logic fuse" They are designed to self destruct, forcing the fuse to blow. So they work in 2 ways. One is they will blow if too much current goes through, and the other way is they will blow if the bms decides to blow it. The bms will short it, making it hot enough for the solder inside to melt.
@@WayneSallee-comTech correct, according to de datasheet, if certain conditions are detected, the controller commands one FET driver to HIGH and the other to LOW, allowing enough current to flow and blow the chemical fuse. If the controller was set to "sealed mode" when programmed at the application level, that logic cannot be reset by any means... Deeming the pack permanently disabled.
@@raraujo4951 Yes, but the fuse can be jumpered with some solder.
But then some of them also self destruct the program. They can usually be reprogrammed, or re-enabled with expensive programing equipment. But that is too costly. "Right To Repair" movement is slowly making changes.
All that battery nonsense is one of the reasons that I built my own laptop using a desktop motherboard, and 16 lithium batteries.
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
His voice and style of speaking resembles very closely to Larry from curb your enthusiasm, so cool.
Communist Google is shadow banning my posts, and my videos, so I am also posting my videos on other platforms. You can find the links to those other platforms on my website.
Found fuse blown and ran thin wire across the 3 pins to act like a fuse. Thanks for the tips!
Your welcome. I'm glad it helped.
Wayne Sallee
Wayne@WayneSallee.com
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@@WayneSallee-comTech I'm pushing for my luck here but hope you can help again. It won't charge past 57% and apparently it has 14% life remaining. I have replaced 2 cells that had voltage below 4.12v
@@eugrafcmg What happens when you run the laptop on battery? Does it drain down properly? Does it charge back up to 57% ? What are the battery voltages when it is charged to 57% ? What are the battery voltages when it is discharged after running on battery down to like 5%?
Wayne Sallee
Wayne@WayneSallee.com
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@@eugrafcmg You really need to reset the BQ IC in order to fix that.
So in actuality you need specialised hardware (i.e. EV2300/EV2400) with software (Smart Battery Workshop or Battery EEPROM Works) to really reset a laptop battery. 😑😕😒
I have an assembled/saved playlist with videos on this topic on my channel.
@@WayneSallee-comTech can I use higher mah battery cell in laptop battery case. Will bms of laptop support it ?? Asking for acer aspire 4740 & sony fseries vpcf135fg.
Is it possible to charge the laptop battery pack by using a bench power supply? Thanks
Yes, just give it the right amount of volts, and the bms in the battery pack will control the charging.
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
It's as clear as mud
Well, if you water down the mud, it will be more clear. :-)
What parts do you not understand?
Wayne Sallee
Wayne@WayneSallee.com
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Are are you an alien 👽😂😂😂😂
But anywayz this is helpful boss 😂
No I'm not an alien, but I am abnormal. :-)
Glad it was helpful.
Wayne Sallee
Wayne@WayneSallee.com
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Hey, I wanted to thank you for this tutorial! My battery was not giving output voltage at all but after doing what you explained (both the resetting and soldering the fuse) now I can see 11.2v coming out!
Still my pc won't boot on battery, and Windows (I have a Win XP laptop, it's quite old, and fixing it is just one of my hobby projects) shows the same thing as before: unknown remaining, critical level, etc.
Is there anything else I should check besides the output voltage?
Thanks in advance and thanks again for the video!
Also now touching the battery case after leaving the laptop charging seems to be warm... I guess it's a good sign?
UPDATE: IT'S WORKING. Thank you so much for this video!! It was matter of leaving it charging overnight!
@@escuchaesto Great!
Glad it's working.
In the upcoming years, "right to repair" is going to become extremely important.
Wayne Sallee
Wayne@WayneSallee.com
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Thanks, worked on mine!
Great! Glad it helped.
Wayne SalleeWayne@WayneSallee.comwww.WayneSallee.com
this video have no captions. yup understandable
Well im doing a recell on a dell laptop battery (7537 Inspiron model btw) i attached the cells in correct orientation ....checked with multimeter that the voltage is as like as in the original battery. But no power. Now i got to your trick and STILL not able to get the battery pack to start. I tried + to both + ... no go... then - to -... no go. What im doing wrong???
And ...I mean when i touch + to + it shows a little spark and all but it does not start the batterypack.
@@jemsncrystals If it creates a spark, then you are doing something wrong, or the bms is defective.
It's also a good idea to use a very thin wire, or something with high resistance to reduce the risk of messing something up, when resetting the switch.
Make sure that you have your batteries hooked up right. You probably have them right, as it is easy to just hook them back up the way the old ones were. Make sure that the total battery voltage is correct. You probably have this right, but double check.
Now locate the + and the - connections on charge connector on your battery pack. This is where you are probably going wrong. The + will usually have 2 pins, and the - will usually have 2 pins. The data lines will have 1 pin each. You want to connect the + to +, and if that does nothing, connect the - to -. After making the proper connection check the charge port voltage on the battery pack, you should now have proper voltage coming out of your charge port on your battery pack. If not, then your laptop will give an error.
To reiterate, you are to connect the + of the charging port, to the far + of the batteries. In other words you are connecting total voltage to total voltage.
Wayne Sallee
Wayne@WayneSallee.com
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WayneSalleeTech thanks for quick reply.
First of all, the spark that I mentioned earlier, is not a spark actually; but its kind of the thing when you trying to make a connection. So its very very dim and then it goes.
Secondly, I checked the total voltage on the battery pack (original that came with the laptop) is coming out 15.6
And the new cells are coming out 14.3volts (by multimeter)
iam using the PCB board of the original Battery and I know that all the voltages are correct because I have double checked it with the sales layout that came in the original battery and also I am certain about their Polarity. Because I arranged another PCB board of the same battery locally and I know I'm right because I burned that second board by connecting the cells wrong so I know it is right because if it was wrong then this original PCB board should also burn but it's not so ha ha and I am doing exactly as you are Showing in the video the positive to the positive and after that I check the terminals of the battery pack by multimeter it shows me the rating of 0.09 then it goes to 0.0 8-7-6 - and ultimately to zero, so I guess the voltage is coming after jumpstarting the battery pack but it's not being stable why is that I really appreciate your help.
@@jemsncrystals Yes it sounds like it is charging a capacitor when you apply power, but does not turn it on as expected, and when you check the voltage the capacitor empties. It could be a blown fuse. I did not see any fuse in the pictures that you sent me. If you have not done so, try the - to -, just in case. I bet that after doing so, you won't get any voltage reading. But it's worth trying. After trying that, look for a fuse.
Also, the one that you burnt, could just be a blown fuse.
Wayne Sallee
Wayne@WayneSallee.com
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You could also try testing with an amp meter from + to +.
Wayne Sallee
Wayne@WayneSallee.com
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thanks for the information i'll be able to use it someday i'm sure👍
Yes, almost all BMS's are that way. This includes cordless drills, and other products that use lithium batteries.
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
This doesn't work for me,but i tried to connect main 12v + on the bms and data pin and that give's me an output voltage ( my battery is 70-NLF1B2000Y A32-F82)
Communist Google has been shadow banning me, so I am now also on odysee
What's the battery voltage?
thank you sir.
Glad it helped.
Are you from earth? Just curious.
No I'm not. But don't tell anyone. :-) :-)
Wayne Sallee
Wayne@WayneSallee.com
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Appreciate video content! Excuse me for chiming in, I am interested in your initial thoughts. Have you thought about - Lammywalness Trendy Trade Guide (Sure I saw it on Google)? It is an awesome one off guide for learning how to recondition batteries at home without the hard work. Ive heard some great things about it and my cooworker after a lifetime of fighting got excellent results with it.
Bro🤣🤣🤣
I think Scotty Kilmore would be proud:)
LOL Why do you say that? :-)
Kilmer.
@@WayneSallee-comTechHe is one of you tubes most famous car repair guys.
how can i reset the second bms that You show
Apply Power to the power connections on the BMS. The BMS has data connections, and power connections. The power connections are usually at the ends, and will almost always consist of 2 connections soldered together. This will charge the batteries, and also reset the BMS after you replaced the batteries, because when you replace the batteries, the voltage drops to nothing, and the BMS turns off. Likewise if you have batteries that drop too low, on some BMS the BMS will turn off.
Wayne Sallee
Wayne@WayneSallee.com
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Hi, can you help me reseting k46cm asus laptop battery? I have tried many ways (as you showed), but no sucess.
What have you tried?
Wayne Sallee
Wayne@WayneSallee.com
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@@WayneSallee-comTech hi, i have sent you an email
@@leandroaugusto1856 I accidentally deleted your e-mail with the spam. I just now pulled your e-mail out of the trash. If you post here, more people can benefit.
Did it work on battery before you replaced the cells? What was the behavior before you replaced the cells? What is the voltage reading when you test for voltage, on the battery terminals?
Wayne Sallee
Wayne@WayneSallee.com
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Hwmonitor show voltage as 14.4V. but when i check voltage on terminal It is zero.
@@leandroaugusto1856 HWMonitor is showing charging voltage. Check the fuse on the BMC. Was the battery working before you replaced the cells?
Wayne Sallee
Wayne@WayneSallee.com
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Hi, you know how i reset the battery contor for PA5185U-1BRS toshiba l50 b 16 z ?
hello!!
my battery sayd charging but it was allways 0% and had the warning to replace it...
i did just that positive to positive and no warning and charging!!!
the way u laghting.. just give me some of that weed!!!
thanks a lot!
the only problem is that its one of those completely sealed batterys.. and i had to almost destroy it to open.. but its in place and working.. now its too late but i should just dig a hole on the case on the side of positive baterry wire to make the reset
@@sergiobisonte You can also restart the battery by giving it the proper voltage without taking the battery apart. Though taking it apart does allow you to see if there are any leaking batteries. When your batteries get old, you can buy some new batteries, and rebuild it. After rebuilding it you will have to restart the battery. I purchased my batteries at liionwholesale.com
Wayne Sallee
Wayne@WayneSallee.com
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@@WayneSallee-comTech i couldnt open it. it was to hard... just open enought to conect the wire... well the battery does not hold to much time cause its old... but at least its charging again and there is no replace message anymore
@@sergiobisonte Yes they are hard to open. They don't want us repairing them. There are a variety of methods on youtube on how to open them. The long skinny ones tend to be easier to open, as they can be twisted to help loosen the glue. On this laptop I'm using, the battery case is almost square, and was very difficult to open in such a way that it can be reused. Solvents usually don't work, because any solvent that will dissolve the glue will also dissolve the plastic case, though the solvent does make it easier to open if you don't care about it not snapping back together. The other danger is damaging the circuitry or battery, as there is very little space between those items and the case.
Wayne Sallee
Wayne@WayneSallee.com
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My friend, I have an old dell laptop in which I changed the battery cells, and although it charges, it discharges after 20 min, staying at 3%~7% remaining, and it can be like this for 2 hours without problem, then I recharge it to 100% and it does exactly the same thing, what should I do? thanks
It sounds like the battery is failing to properly relearn. You can try leaving it on, until it crashes, and then recharge to 100%. You can do this a couple of times, and see how it does. You could also try booting with a Linux boot disk, and see if the charge value is the same.
Wayne Sallee
Wayne@WayneSallee.com
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I have the exact same issue. At first it would charge up to ~12.6V and assume it was 100%. Then I manually charged the pack to 12.6 with battery charger. It used to work and it learned really well. But at some point it started to fail again. Now it's a total mess. It only charges up to supposedly 15% but it goes up to 12V. then it drops to 0% after some time, with the battery still around 11.5V (The cutoff is 9V) but I set it to sleep when battery is drained, so I can just wake the laptop back up again. Now I can survive a couple more hours on 0% :) Justv check the battery voltage with software sometimes and estime how much left.
@@oglcn11 Did you open the battery pack? If so, did you check each battery to see if you have any bad batteries?
Wayne Sallee
Wayne@WayneSallee.com
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@@WayneSallee-comTech Yes. I replaced each cell with brand new Samsung 30Q cells. I forgot to mention that :)
Also dell likes to refuse to charge your batteries if if does not detect the charger right, unless the laptop is turned off.
Will it charge the battery up all the way if the laptop is turned off?
Wayne Sallee
Wayne@WayneSallee.com
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CESAR LOPEZ
(Edited for Language) I was about to throw away my laptop battery, and saw your video and turned out that the problem was the fuse that was blown away. it is the first video that talks about that little fuse to be the cause of a not working battery laptop. thanks man. you save my battery and make my day!!!
WayneSalleeTech
Glad that it helped. It is good to be able to have the right to repair things.
Wayne Sallee
Wayne@WayneSallee.com
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Hi. as per object. I wanted to cheider you I changed the 18650 batteries for an asus f55u laptop I tried your advice but there is no voltage at the connector. on the 3-pin fuse there is no continuity and I made the bridge but if I make the bridge with the + it is short-circuited. I hope you can help me. thanks Luca
@@lucamagliano6180 Is the fuse like the one in my video, or is it like this 12ah3 fuse? :
www.aliexpress.com/item/4000602271621.html
Wayne Sallee
Wayne@WayneSallee.com
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I have an Asus X542 2S battery it wasn’t giving any output so, I connected it to battery (+) directly and was working fine, but from last week it stopped charging! I checked it found the BMS not letting it charge! Maybe, it’s cycle count is reached.
So, is there any way to reset the BMS memory or directly bypass it?
The 2 battery cells are fine.
There is probably a bms for each cell. Have you checked to see if it will charge with the laptop turned off?
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
I have asus battery a32-u47. When i try the + to +, then fuse 12ah3 immediately blows. After repairing this fuse with a lot of solder, then after jump + to + again, fuse blows, but a little bit longer) Can you give advise what to do in this case?
About all I can tell you is to make sure that you are connecting it correctly, and to use a resistor to make the connection to limit surge of power. I got so fed up with the battery proprietary nonsense, and other proprietary nonsense, that I built my own laptop.
-------- Original Message --------
*Subject: * Laptop battery repair Help
*To: * Wayne
*Date: * 2019-5-3 02:11 PM
> Dear Sir,
> I have seen your RUclips video "Resetting laptop battery pack" ruclips.net/video/04sNLJ8Vdjk/видео.html and really like it.
> I have Inspiron 14 3442 laptop. Thought It's 5 years old laptop now laptop showing on boot replace battery and without power adapter it won't start.
> So I decided to repair the battery on my own. I deassembled the battery pack check for voltage across each individual lithium battery which seem totally fine 4.1 volts. However I change the lithium cell with new ones.
> But it won't help anymore So I find out their must problem with the battery BMS circuit I bypass the fuse on it won't help.
> I tried your method shorting + to + it seems nothing happen then - negative to -.
> Across the battery voltage is shown 15.9 volts but on pin it's 0. Negative pin to fuse it showed 15.9 volts positive pin should show voltage.
> I certain point I realize the it shows voltage 15.9 on pins but for just a second of time then 0 volts. Will you please help me in this build, what could be the issue? How do I fix this problem.
> Attaching few photos of my battery pack circuit.
>
Test each battery and let me know what the voltage is for each battery.
I am assuming from your pictures that those 4 batteries are in series, and that none of them are dummy batteries.
It sounds like you have identified the + and the - terminals that the laptop uses. After being sure that you have correctly identified those terminals, apply 4.1 volts times 4 (number of batteries in series) = 16.4 or higher, because of voltage drop in the BMS (less than 18 volts).
While charging test the voltage of each battery, and see if the voltage goes up.
If it is able to charge the batteries, then after you get the batteries to 4.1 volts each, try again to see if the bms will give you power.
BMS calculates batteries as fully charged when battery voltage reaches 4.2 and amps drop to specific level.
Let me know the results.
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
-------- Original Message --------
*Subject: * Re: Laptop battery repair Help
*To: * Wayne Sallee
*Date: * 2019-5-5 04:03 PM
> Thank you for your reply.
>
> I check voltage across all batteries it is almost same 4.13 Volts each and none of the seems dummy. If yes then please tell me how do I find dummy battery.
> I took this reading individually without connecting in series.
>
> After Connecting in Series 16.52 volts.
>
> I am attaching Picture while taking reading at each cell and various points on Circuit. I found the only voltage is not on "+" positive pin, other than that 16.50 volts are reaching till Fuse. I hope you will get clear idea from attached Pictures. I apologies for my messy setup.
>
> One more thing I forgot to mention that I used external Power bank circuit to charge the batteries and all reading are taken after charging. One more time I tried resetting BMS method It wont work for me.
>
>
Yes, none of them are dummy batteries. Some battery packs will have space for more batteries, than the BMS is designed for, so to take up space in the battery pack they put a plastic dummy in so that the batteries don't jiggle around.
Did you try applying 18 volts to the BMS to see if the BMS would supply power to the batteries. Your laptop power supply would work for this.
Do you have the battery wires hooked up to the correct locations?
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
-------- Original Message --------
*Subject: * Re: Laptop battery repair Help
*To: * Wayne Sallee
*Date: * 2019-5-5 07:35 PM
> Yes I'm pretty sure about wire connections. I took pictures on first disassemble to make sure to restore all connections properly.
>
> I will try apply 18v to BMS and see if it works.
>
> I will let you know.
>
>
Usually the laptop BMS will have the following wires labeled on the board:
VG Voltage Ground
VL Voltage Low
VM Voltage Medium
VH Voltage High
VP Voltage Power
The corresponding voltage at those connections is:
0 volts Voltage Ground
4 volts Voltage Low
8 volts Voltage Medium
12 volts Voltage High
16 volts Voltage Power
If the BMS detects bogus voltages there, it will not power.
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
-------- Original Message --------
*Subject: * Re: Laptop battery repair Help
*To: * Wayne Sallee
*Date: * 2019-5-7 02:09 PM
> This is the picture I clicked on disassemble. I made connections based on this picture.
> The BMS has only mark LP1, LP2,LP3,LP4.
> Also LP1 + positive terminal.
Then it should be hooked up to the batteries so that you get the following voltage:
LP1 0 volts
LP2 4 volts
LP3 8 volts
LP4 12 volts
LP5 16 volts
If you have it hooked up so that you get the above voltage, then the problem is with the BMS
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
@WayneSalleeTech can I use higher mah battery cell in laptop battery case. Will bms of laptop support it ?? Asking for acer aspire 4740 & sony fseries vpcf135fg.
Yes. When choosing a battery consider both mah and max amps. Often when one is higher, the other is lower. So look at both specs.
Wayne Sallee
Wayne@WayneSallee.com
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@@WayneSallee-comTech no I will use old laptop battery that contain 6cell 3s2p & replace it with higher mah cells in the same old case . Can i do that ? Old cells each 2600mah will replace it with as much as high I can achieve.
@@bhavishdhankar1943 Think about it this way. When you go to the store to buy a car battery, the manufactures will brag about cranking amps. If you look at the trolling boat batteries, they will brag about trolling hours. Both measurements are important.
Wayne Sallee
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Can you tell me how to reset hp battery?
Yes.
Wayne Sallee
Wayne@WayneSallee.com
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@@WayneSallee-comTech
How to reset hp battery?
Just have to connect two positives for second or permenantlly??
@@navnathgurav9672 Just a few seconds. And it's safer to to use a resistor, or something with some resistance. I use a really thin wire.
Wayne Sallee
Wayne@WayneSallee.com
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Sound volume level is too low, and speech is not clear. No substitle. Nothing understanable !!!
What is your native language?
Wayne Sallee
Wayne@WayneSallee.com
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can u help me with dell 5430? pls
What problem are you having?
Wayne Sallee
Wayne@WayneSallee.com
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I attached the positive to the positive and I got smoke in dell 9 cell battery could you help me out
That's why I like to use a real thin wire when testing things like that.
You want to connect the positive that connects to the computer to the main positive of the battery pack. Use a voltage meter to check the voltage between main positive of the battery pack, and main negative of the battery pack to make sure the voltage is right. If it is, then check the voltage between the two positive connections that you tried connecting to. A voltage meter only allows a tiny amount of power to go though, allowing you to safely test the different connections. Check the different connections with a voltage meter to see what you have.
Wayne Sallee
Wayne@WayneSallee.com
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Thanks alot for usefull information mate, but i just have new problem. Now it's my second time rebuilding my pack. Now i cannot reset it, when i touch to the positive pole of battery and positive slot it gives power (by my finger) when i take my finger off power gones. It's same with jumper cable too. I'm totally confused. after watching your guide i bypassed the fuse( which is first type on the video) but nothing is changing. I get power from bms just when i touch the poles or touching by finger. I already checked the connections and couldn't find any clue. Batt voltage is 15.35V and each cells are equal to 3.83V
Need your advice. Thanks alot!
It's looking like some, if not many are designed to fail after being reset a certain number of times. It's a pain to keep the proper voltage on all the rails while rebuilding, but I think that just keeping the voltage on the main lines while rebuilding would probably be enough. But even that's still a pain, all because they don't want us to be able to repair our products that we own. www.fighttorepair.org
I hate proprietary. I'm working on building my own laptop with a desktop motherboard, and 16 lithium batteries.
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
@@WayneSallee-comTech Hello. I had the similar idea! Where can I follow up on the custom laptop progress?
@@HongaSpb Eventually I will post a video on it, on youtube. It will be big and bulky, but it will still fit on my lap. :-) It will have 16 lithium batteries. I have the power supply ironed out, but will need to be rebuilt from the testing mode to size to fit in laptop. Even the power sett-up I have is crazy bulky, using a number of adjustable buck converters. The whole thing is going to be heavy. But it's educational, figuring out how to make it work. It will look more like a desktop tower with a laptops screen. I will also have bigger speakers on it than normal laptops.
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
Thank you for your effort, im just trying to find another bms. I couldn't turn it on. Damn companies...
@@abdurrahmanertan2067 Yes I have had it, with proprietary battery packs.
But actually it's not the companies that will go to Heaven, or Hell, it's the people that run the companies. www.heavenhell.waynesallee.com
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
Hello. I have an X541SC laptop and the battery died. It lasted 2-3 hours, but I can no longer run the laptop with it. When I took it out and measured + and -, there is no voltage. I told myself it was dead. I took another second hand, but i did not measure it before taking it. I just took it and put it on the laptop, but it's the same case. When I measured it, again there is no voltage of + and -, but the batteries themselves on both sides give 11-12 volts. Does anyone have any idea if this is a dead board / battery processor, or for some reason there is a protection that has turned on and stopped the output voltage? I found this on the internet:
Some batteries are equipped with a solid-state switch that is normally in the “off” position and no voltage is present at the battery terminals. Connecting the switch terminal to ground or pulling it up often turns the battery on. If this does not work, the pack may need a code for activation. Battery manufacturers keep these proprietary codes a well-guarded secret to which even service personnel have no access.
What is the lithium cell configuration; how many cells, how many parallel?
at 3.5 to 4.2 volts per cell that will tell us how many volts it should be reading.
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
@@WayneSallee-comTech Hi, i'm going try to explain what happened from the start. First I've upgraded my bios with newer version, but my laptop wasn't able to connnect with SSD drivers anymore. And then i've notice that my laptop just turn off while being in battery only. After reset, it could go longer for like 5-10 mins and turns off again. My battery was fully charged. So i've downgrade my bios again. Because i thought it's from it. But this case continue. After while my laptop couldn't anymore turn on with battery and once you unplugg the charger, the laptops turns off. I've tried alot of software tricks, bios load default settings and etc, but nothing worked. So i've removed the battery and meassure the voltage. There was no voltage from +. Just Zero. I've meassured my motherboard pins while charger is inside, you could see 12 v on two pins. So there was no problem with the charger. My batteries meassure is like 3.6-7 voltage per one. All three batteries have 12.5 voltage. But there is no voltage on + pin. So i've started to lurk in youtube. I've found a way to give 12 + directly to the pin of the battery so you can reset BSM or something like that. That didn't work too. And i've read about Fuse that could be in fault or CHIP Lock , which disable charge and output voltage of the batterie. I've bough second hand battery that should be working. I didn't measured it before adding to my laptop, so i'm not sure if it worked correctly. But after i added it and tried to turn on the laptop, nothing happened again. Once i meassured this battery too, there was no 12 v in the + pin. So i've wonder. Is it possible my laptop to trigger something like fault/defect and my battiers to lock themself?
@@WayneSallee-comTech Hi, i'm going try to explain what happened from the start. First I've upgraded my bios with newer version, but my laptop wasn't able to connnect with SSD drivers anymore. And then i've notice that my laptop just turn off while being in battery only. After reset, it could go longer for like 5-10 mins and turns off again. My battery was fully charged. So i've downgrade my bios again. Because i thought it's from it. But this case continue. After while my laptop couldn't anymore turn on with battery and once you unplugg the charger, the laptops turns off. I've tried alot of software tricks, bios load default settings and etc, but nothing worked. So i've removed the battery and meassure the voltage. There was no voltage from +. Just Zero. I've meassured my motherboard pins while charger is inside, you could see 12 v on two pins. So there was no problem with the charger. My batteries meassure is like 3.6-7 voltage per one. All three batteries have 12.5 voltage. But there is no voltage on + pin. So i've started to lurk in youtube. I've found a way to give 12 + directly to the pin of the battery so you can reset BSM or something like that. That didn't work too. And i've read about Fuse that could be in fault or CHIP Lock , which disable charge and output voltage of the batterie. I've bough second hand battery that should be working. I didn't measured it before adding to my laptop, so i'm not sure if it worked correctly. But after i added it and tried to turn on the laptop, nothing happened again. Once i meassured this battery too, there was no 12 v in the + pin. So i've wonder. Is it possible my laptop to trigger something like fault/defect and my battiers to lock themself?
@@OldboyWOW Wow that stinks that you didn't test the battery before connecting it to your laptop. At that voltage your lithium cells are fully charged. What I would do, is jumper the fuse, but don't put it in the laptop. Add voltage to turn the battery pack on, and see if the battery pack will now give voltage. If it works, then you know it was the fuse, but if you then put in in your laptop, it would likely damage the battery bms, since the fuse is jumpered. Before jumpering the fuse, you can test the fuse with an ohm meter to see if it is bad, then jumper it if it is bad.
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
Google is going down hill. Comments are disappearing. I wish that google
had never purchased youtube. Google has become a monopoly.
LOL I posted this, and it multiplied into 4 duplicate comments.
Google is going down hill.
And this reply multiplied into 4 duplicate replies.
Google is Fat.
yep and censoring anything they dont like it's bs
This doesn’t work on "2S" battery pack.
It does not matter how many "S".
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
Bro, I have rebuilt my Lenovo Laptop battery with 4 new cells but Error shows "0% plugged in not charging", please help me what problem?
Old cell: 3.7v/2200 mAh, Sanyo
New cell: 3.7v/2500 mAH, Samsung
It's looking like some, if not many are designed to fail after being reset a certain number of times. It's a pain to keep the proper voltage on all the rails while rebuilding, but I think that just keeping the voltage on the main lines while rebuilding would probably be enough. But even that's still a pain, all because they don't want us to be able to repair our products that we own. @t
I hate proprietary. I'm working on building my own laptop with a desktop motherboard, and 16 lithium batteries.
Did you try applying power to the battery pack to see if it would charge?
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
@@WayneSallee-comTech ye, how do you ensure you got the right wires/pins xD
Can you check my battery. I just opened. And it has different battery than your s
What does it look like?
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
Voice 😂😂😂😂
🤣🤣🤣🤣
Please help me
I have replaced my lenovo laptop battery with new cell.
When I put it in laptop.
I am getting "plugged in,not charging.
Si please help me
When replacing batteries it is better to maintain voltage to the bms, but that is a lot of trouble. I am thinking that just maintaining the main voltage instead of all the cells might work just as good. Doing so with a resistor to prevent high amp flow would probably be best.
When that has not been done the bms will shut off. Often you can get it working again by applying power to the main power lines, preferably with a resistor to prevent inrush.
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
@@WayneSallee-comTech I have tryed this method but also I am facing the same problem.
Please help me
@@praneetheditz639 What voltage do you get from the battery pack on the slot connections?
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
@@WayneSallee-comTech from battery pack I was getting 11.56 volts
@@praneetheditz639 And from the slots that feed the laptop, what voltage are you getting?
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
your video confusing.
Obrigado meu amigo.
In English that is "Thank you my friend".
Your welcome.
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
deesnt work for me
"Right To Repair" is a world-wide movement to fight back against companies deliberately making things more difficult to repair. A lot of BMS's are being made so that you can only restart them a few times, if not at all. Did you check the fuse?
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
@@WayneSallee-comTech yes i had a blown fuse
couldnt find a new one yet
still thankss for the reply btw
@@faaiquealimehmood You can override the fuse with a little bit of solder. If you use just a thin tiny amount of solder, the solder can be the fuse. Fuses are made of thin low melt metal.
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
@@WayneSallee-comTech Alright will try that instead
Thanks for your help good sir
you speak much... go to the point...
Thanks for the feedback.
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
Voz horrível
In English, that is "Horrible voice". Yes my voice is weak from sleep apnea. I now sleep with a mask that I made to help with that. My voice is now better than it was, but not back to normal.
Wayne Sallee
Wayne@WayneSallee.com
www.WayneSallee.com
@@WayneSallee-comTech sorry