Faulty Makita Battery diagnosis
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- Опубликовано: 27 авг 2022
- In this video I attempt to find the fault in a Makita 6AH 18v LXT lithium ion battery. I first of all show the details of the fault which is a single flashing battery light and the battery refuses to charge or power any tools. The model of battery featured is BL1860D. The details shown in this video will be the same for any 18v LXT Makita battery other models include BL1830,BL1840 and BL1850. I try to establish the root of the problem and attempt possible repairs. I test the voltage that the battery is producing in this case it was roughly 14v. Batteries at low voltage like this cannot power the 18v tools or indeed take a charge. Sometimes the low ered voltage would suggest a bad cell or 2 but that was not the case this time. I then proceeded to open the battery testing the individual cells discovering they had all lower voltage than they should so this led me to think the cells were all viable and cell replacement was not required. I then tried the sometimes effective measure which is nicknamed the jumpstart method this method involves connecting a good battery to the bad and transferring power to the bad one raising the voltage to a rechargeable level. I was able to bring the bad battery up to over 17v which I would consider the zone for rechargeability however it did not work this time as the PCB board in the battery is faulty flashing a single red light. A faulty PCB board stops the battery from receiving charge from the charger and even if you bring it up another way like I did it also stops it from powering tools this is a safety function of the battery technology.
I have ordered a new PCB circuit board for the battery and will carry our the full board replacement on the Makita battery in the near future. This will feature probably next month on my channel. The question is can you repair a makita battery that is not charging? My answer is a resounding yes.
If I can you can. A word of warning however the repair of lithium ion batteries must be approached with caution. Lithium cells can explode and catch fire if punctured, they are most dangerous fully charged. Please be careful if attempting any of the battery repairs on my channel.
#repair #makita #powertools #makitapowertools 
Хобби
Second part out now ruclips.net/video/NAOXEbL6-OQ/видео.html
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Thank u for your comment
YOUR WELCOME…I just touched + with - with a wire and start charging again😉
I have too that red flashing light. I bring the batteries inside to a warm room, let them be and then the charger will charge them properly. Blinking red means cooling... Or something with the temperature.
Temperature is a big issue at the minute the harsh winter is very detrimental to batteries. Like you say the charger won't charge them unless they are the right Temperature either
People should be aware that there's a lot of counterfeit Makita batteries on Ebay and Amazon. I just returned a 6.0Ah battery after learning why the price was unusually low. There are videos that tell you how to identify fake Makitas.
Fake batteries are the worst thing I have seen the build quality is absolutely horrendous
Y is it heated so much plus I smell the plastic burn smell and so stopped after the light just showed in 2nd step which it needed for 3rd step light to be fully charged?smell not normal?
Battery is probably beyond repair
I have three faulty PC boards and all three are completely different from each other.
That does not surprise me at all.
The part number will help for example BL1830 BL1830b BL1860 these are the sort of numbers that identify them.
Hi. I have a strange problem with an older Makita 3AMP battery. When I insert it fully into the drill it will not power the drill. However, if I retract the battery 2mm by depressing the button and sliding it backwards, the drill will work. I have tried cleaning the connectors on the battery with sandpaper but still no good. Do all 3 connectors need to connect with the drill? My other 3AMP battery works fine so the drill cant be broken. Any ideas?
It is something in the pcb of the battery stopping the drill from working its a safety thing. Because of the nature of lithium-ion and the fire risk the pcbs are over sensitive and will cause a shut down even when there is not much wrong.
@@doctorlefthandthread Thanks for your swift reply. However, I cannot see anything in the drill that connects with the yellow 7 pin PCB connector in the battery.. The drill only has 3 metal plates that are inserted into the two positive and one negative ports. Or am I missing something?
@@user-vc2op3wt7k that's right I would suggest putting a bit of insulation tape on the middle pin the shorter one on the positive side and my guess is your drill will then work with the troublesome battery
I am afraid that makes it worse. The drill does not work at all regardless of where the battery sits, probably because one of the contacts is permanently not connecting. I want to identify which contact loses connection when fully inserted. Is there an easy way to do that ?
@@user-vc2op3wt7k you could connect wires from the battery to the tool and use the process of elimination to see if you can get it to go that way
Back and forth red and green lights?
Need to test the cells but if they are OK it's a pcb replacement
none makita battery are they any good ? that yellow but is broken on my makita battery can it be repaired ? thanks
They are about the same as other brands in quality I think you can get the yellow piece separately and glue it on.
@@doctorlefthandthread oh right thanks i bought two original makita batteries and one doesnt load into the charger and the other battery has a broken yellow connection . i have other brand batteries and they seem to be ok and used for nearly two yrs in my gardening business
I repair Li-ion batteries from well-known world manufacturers as a hobby and only for personal use. My experience so far is that if we consider that most of the famous brands install cells of uniform high quality, Milwaukee is the best..Why? When you change the broken cells or when you adjust their voltages, the Milwaukee intelligent charger erases the error and activates the battery. With other well-known brands, it doesn't work (my experience so far), but you have to change the PCB of the battery as well. I would be interested if you know which other professional brand has these features? In addition, Milwaukee batteries have a high-quality, rubberized housing.
Other well-known global manufacturers are afraid of possible expensive compensation costs (explosion and fire) and have made it impossible to reset the electronics in the battery. All the cells are correct, all the voltages are even, and the battery ends up in the trash? Protection of the natural environment???
Greetings from Switzerland
Hilti BMS ist auch einfach
Hi Popajaja. Do you think it is possible to reset the controller board on Makita batteries to fresh factory settings? Like erase memory chip or something? All repair advice suggests replacing the bricked board with a new one.
I have watched quite a lot Makita battery videos recently and read a few hundreds of comments and you seem to have investigated the matter deeper.
@@peckhamian
Hi Peckhamian
I don't think it is possible to reset the Makita battery controller board and clear the error. Like you, I read hundreds of comments on the subject before I ordered a new board via e-bay. In the meantime, I'm tired of changing plates, but I'm using broken Makita batteries to extract correct, high-quality Li-ion cells. The most important thing is that no cell is discharged below 2.5V and thus permanently damaged, unsafe (short circuit and possibility of explosion/fire)!
Greetings from Switzerland
Hi @Popajaja came here to find a solution for 2 batteries that have been used very little and now display as broken on the charger... I realised not only you seemed to know what to do about that but are also based in Switzerland - just trying my luck here, are you anywhere near Geneva by chance?
Hi@@mascarponeable76 read my first comment. Even if I lived in the same house in Geneva as you, I wouldn't be able to help you. The reason is that I don't want to be responsible in the event of an accident because Li-Ion batteries are very dangerous (a lot of energy in a small space). There are a lot of videos on RUclips that show "fireworks" when a Li-Ion cell is mechanically damaged or short-circuited. Additionally, I have yet to repair any Makita battery without having to replace the PCB. Another problem is that the replaced, cheap, non-original PCB does not control all the battery cells and does not have the possibility of voltage balancing. On the Internet, there are many offers of "broken" Li-Ion batteries that cannot be fully charged and that can be bought cheaply. The reason for the failure is that the charger stopped charging if the voltage of any cell or pair/trio cell approached the maximum of 4.2V. T
s repair is the simplest and cheapest. You balance externally - equalize all cell voltages and put the battery in the charger.
My favorite is the Milwaukee M18/12Ah battery, it can't be fully charged. which I get for free or pay 10-15% of the new price.
Greetings from the Swiss Emmental
----------------------------------------
Lisez mon premier commentaire. Même si j'habitais dans la même maison à Genève que toi, je ne pourrais pas t'aider. La raison est que je ne veux pas être responsable en cas d'accident car les batteries Li-Ion sont très dangereuses (beaucoup d'énergie dans un petit espace). Il existe de nombreuses vidéos sur RUclips qui montrent des « feux d'artifice » lorsqu'une cellule Li-Ion est mécaniquement endommagée ou court-circuitée. De plus, je n'ai pas encore réparé de batterie Makita sans avoir à remplacer le PCB. Un autre problème est que le PCB remplacé, bon marché et non original ne contrôle pas toutes les cellules de la batterie et n'a pas la possibilité d'équilibrer la tension. Sur Internet, il existe de nombreuses offres de batteries Li-Ion « cassées » qui ne peuvent pas être complètement chargées et qui peuvent être achetées à bas prix. La raison de la panne est que le chargeur a arrêté de charger si la tension d'une cellule ou d'une paire/trio de cellules approchait du maximum de 4,2 V. Cette réparation est la plus simple et la moins chère. Vous équilibrez de manière externe - égalisez toutes les tensions des cellules et mettez la batterie dans le chargeur.
Ma préférée est la batterie Milwaukee M18/12Ah, elle ne peut pas être complètement chargée. que j'obtiens gratuitement ou que je paie 10 à 15 % du nouveau prix.
Salutations de l'Emmental suisse
I have a makita 18 volt 2ah battery that is not working.
I am working on a 3ah at the minute the video for that is coming soon
Just put it on the charger even its blinking. I left mine for a night when i woke up it restarted and charged it
That's awesome I have heard the chargers can do this but never saw it happen
@@doctorlefthandthread if u have no patience you wont pursue but i left it on. In the morning i saw it green. I used the battery works normal, charged it as if nothing happened
@@markhidalgo734 thank you
Did not happened on mine.
Y smell while charging?
Cells damaged leaking maybe?
Mostly it is caused by few cells they are over discharged. N
Can be yes
😂 the blinking diode signals the fan and cooling of the overheated battery, not its damage
That one was submerged in water overnight the board was toast
This doesn't work. I tried it and nothing.
ruclips.net/video/NAOXEbL6-OQ/видео.html
If you get at charging 3 times the error from the charger your pcb disables the battery permanently
Thanks for the info do you think a new PCB will fix it?
@@doctorlefthandthread if all your LiIo Cells are ok it works with a new pcb again.
Next time if the Charging fails: only try 1-time than Kickstart the cold battery and charge again in a firesave environment, if one cell gets hot stop it immediately and change the cell.
@@halbvoll1 thanks for the advice the pcb is ordered for this and I will make the 2nd part soon
@@doctorlefthandthread
Здравствуйте друг
Где заказывал?
@@muhammadmagomedov6916I ordered it from ebay had to wait until it arrived from china
My issue with the makita batteries is making me want to swap my whole kit out to DeWalt.
Makita quality has fallen off, IMHO
There is certainly limited choice in Makita LXT compared to Milwaukee M18 and Dewalt XR/flexvolt
@doctorlefthandthread plus, I'm thinking maybe going from 18V to Dewalts 20V may be the extra power I need
@@SirMillz I gotta break this to you M18 Milwaukee 18v LXT and Dewalt XR 20v are all really 20v when fully charged. The 3 brands use the same cells usually too and the same amount
@@doctorlefthandthread ah, I see. I can believe it. So what is the best kit? Or does it really matter?
The standard batteries are pretty much the same across the top 3 brands they mostly use the same samsung cells. Best kit? Depends what you are doing. Of the 3 Dewalt is better value for money in my opinion.
Love makita, have many of their tools, but the 18v batteries are sh!t, switched to milwaukee & have never looked back.
I am a fan of the Milwaukee M18 battery
Not faulty just filthy 😂
It lay in standing water for 24 hours I was told.
Makita battery management boards are pieces of shyt . . . on purpose.
I reckon millions of good Liion cells have been thrown in the trash by people who don't realize that there's actually nothing wrong with the batteries, which are the most expensive components in the pack. Even if you refurb some of these batteries properly, using their series connections, and balance all cells perfectly, the BMS PCB has a memory and will not allow the charger to charge a perfectly decent battery. Even if you purchase a new battery, and it just goes below a certain charge level due to disuse, the battery charger will reject it and then after a certain number of tries will program the battery PCB to reject the battery.
I have simply charged my 18v Liion Makita batteries using a constant current charge of around 0.5 Amps up to 21 volts, and then a constant voltage charge between 20-21v up to 21 volts, for 100's of cycles, and they never overheat, work just as they should for a long duration. It takes longer than the proprietary fast charger is supposed to take, so it's not really a fix for the laborer who relies on the product for their job, but there's no way I will ever purchase a Makita product ever again in my life.
The chargers are shyt... simply shyt, and I've come to the conclusion that Makita just know how to generate profit from DIY consumers who don't use their drills/drivers that often, and will then believe they've invested too much into the drill, so continually purchase some of the most overpriced proprietary liion packs on the market other than just writing off their equipment purchase as a bad consumer choice and switching brands never to return.
I've never had such problems with my Bosch charger and batteries. And once, a Bosch battery fell under the charge voltage to be recognised by the charger, so I charged it manually using constant current up to 18v, and then the charger recognised it perfectly.
Makita is cancer
I agree with all of that tbh
Chinese sell new board with 8 euro though, just fixed 5Ah one. Eventhough it does not have any discharge/overheat current etc protection, so not too good for dumbuser. But it will take charge and work like normal, in some cases no overcurrent protection can be even beneficial -like with circular saw or angle grinder.
@@Tegelane5 that is correct sir
I've had so many problems with makita batteries I've given up on them. They are absolute rubbish. I went to Makita with 3 batteries that packed in and said if I didn't have a receipt there was nothing they could do. They were genuine batteries. They just didn't want to know. I'm done with makita now thankfully. Never again.
@@TheBadgolferman sorry to hear that I hate when these big companies leave customers hanging like that
Thx for wasting my time
Sorry you feel that way this is the 2nd part ruclips.net/video/NAOXEbL6-OQ/видео.html
@@doctorlefthandthread Ok. I will try also part 2
It's better to waste a little time than a lot of money!
I hate makita
Perfectly valid opinion and I cant totally disagree
I'm having problem after problem with makita battery's and charger going down.
They are not fit for purpose.
Good money for garbage.
Some people have lots of issues some people say the Makita batteries do well its a mixed experience with all brands as far as I see but yeah the Makita batteries are far too expensive