Thanks for the explanation! I'm sad that I only have sealed batteries and 20v chargers. But, the behavior that the weak battery demonstrated will be helpful for me diagnosing batteries in the future.
i suppose you could try this as a last resort to tossing it, but first charging the battery is current limited up to about 14 volts, then voltage is held and current is tapered off to somewhere around 1/4 amp and is then terminated or held in float mode at around 13.4 volts (above is ballpark and is dependent on actual battery). Also these are agm batteries and should not have enough water in them to spill. If you tip it upside down and it leaks, you have too much water. The vent caps are not supposed to be opened, But like i said if your going to toss it out then sure try to revive and water it, just be careful.
1 questions, When you use the laptop charger, how you now when the charger will stop charging the battery to avoid continuously Charging that might explode the battery. Is using laptop charger will have cut off system during charging?
Correction Guys, this battery is overcharged. The battery is 7ah and the charger outputs current is 3ah so the charging time was supposed to be 7ah÷3ah=2:30minutes and not 17hrs as he said.
but wait .. higher A in chargers means faster charging ? what about the w of the charger ?? also higher w means faster charging like smart phone chargers ???
If I understand your correctly: there are 3 ways you can do this. 1) If you already have the original charger that comes with the battery, you only need to get the alligator clips with proper connection for charger. 2) If you dont have the original charger, you need to buy the entire set. 3) You call also purchase a wall to battery unit plug. Hope this help!
Hello sir, my wind turbine generator produces AC 150 v 90 watt, if I'll attached step up trasformer to this generator and make it Ac 220 v. Can I attached 12 v 100 Ah battery charger to this transformer ? (battery charger rating is :-INPUT =220 v / 50 Hz. OUTPUT =15V 15 AMP) .......PLEASE REPLY ME SIR......
Could have added a regulator or something, even resistance to drop the current to a max of 1.5 amp for the first 10 hours before allowing more to surge the system. Also no fuse or any other safety cut off was used to prevent hazzards. In the end the best way is to use a proper charger that allows you to set the charge current and the cut off voltage. Using back yard measures like this is dangerous
@@MrElectronSar i have a 12v 9ah battery and i have 12v to 24v 4.5ah adjustable universal charger and you say that we can charge our 12v battery by 15v adapter without any issues so when i put the adapter into 15v it gives 15.81v output so this around 16v output so plz reply me can i charge my 12v 9ah battery by 15.81v plz reply sar😊 iam waiting to charge my battery😅
No dear @mr electron and @little raptor you can run the motor at max power, 1: 50A is more than enough for a 150w motor, and 2: lead acid batteries can output crazy amounts of amps, and 3: I’ve tried running a 250w motor on a 4 ah 12v battery and it worked just fine, have a great day / night @mr electron and @little raptor
@@fbi-federalblyatofinvestig3853 ok, yeah it seemed a bit weird to me that that motor would consume more than 50A, but i looked up how to calculate it and 12V.50A=600w, so i can run it at full power. still, thanks for the feedback
Sar i have a 12v 9ah battery and i have 12v to 24v 4.5ah adjustable universal charger and you say that we can charge our 12v battery by 15v adapter without any issues so when i put the adapter into 15v it gives 15.81v output so this around 16v output so plz reply me can i charge my 12v 9ah battery by 15.81v plz reply sar😊 iam waiting to charge my battery😅
I have a 12v 4.5ah lead acid sealed battery it's for a Bluetooth speaker .I charge it with an adjustable power supply at 12.8v to 12.6v and it goes dead after one song..anyone know how I can charge this so it will work for a few hours at least
sorry didn't get the part about the type of water you used to refill the battery, what kind of liquid is that thank you for your informative video looking forward to more content
Hello Everyone. I have a question. I have a B&D 750W 6.52amps inverter model PI750AB. For the most part it works perfectly. But I'm experimenting with using it with a smaller battery in my chicken coops when needed. I have it hooked up to a GT12080-HG 12v 8ah battery. I can run a fan, laptop radio etc no problem. But when I plug in a 200w heat lamp the inverter goes yellow and cuts the power. The battery is fully charged. Why is a 750watt inverter shutting down when plugging in a 200watt heat lamp??? Any ideas?
The inverter's rating of 750w is the maximum that the inverter can provide, not the battery. My guess is the small battery isn't providing enough current for the inverter to deliver 200w of power to the heat lamp. 200w divided by 13.4v is 14.9 amperes--quite a bit of current draw for a small lead-acid battery. The inverter tries to pull 15 amperes but can't, so it shuts off. I hope you've got it figured out by now! Maybe try a larger battery, or a different chemistry battery. I believe Lithium-ion or Lithium Iron Phosphate can discharge at faster rates like 15A.
Yes it is because capacity doesn’t matter much just put it on for around 4-6 hours because the capacity is lower, if it gets too hot then disconnect the charger because it’s fully charged 😁, have a good day/night sir.
No, there will be too much current for the rated Ah of the battery. It should be a max of 10% of the Ah of the battery (0.1 C), so you need to current limit to 350 mA. Anything faster, even like 20-25%, will heat the battery more, possibly cause gas build-up and will wear the battery out faster.
Hii Sir, my small wind turbine generate Ac 150 v 90 watt. If I'll attached step up trasformer to this generator and the connect laptop charger at the output of step up trasformer, can this connection charge my 12 v 7 ah battery?.... Please reply me Sir, ur feedback is valuable for me
@@MrElectron thank you so much dear sir for reply me. But 150/90=0.6 mA current, and laptop charger output voltage is, DC 15v 3A. Can this laptop charger received 0.6mA current and charger output current is 3Amp ?
Hi could you tell me if i can use a 19V laptop charger to charge batteries as well , or is this voltage to high ? i know just a bit about this subject, thanks in advance btw i like the content you make, keep them comin ! ! !
well actually 19 volts is going to be too much if you want to use a 19 volts laptop charger then you should connect a 12 volt bulb in series with the battery
And sir g Mere pas yek laptop ka adapter hain usme to likha hai 19v output and in my laptop there is written works on 12v kya funda hai pls reply if you're reading me
IN REGULAR FASHION, can i use Solar Charge Controller +24v DC Power Adapter for charging 12v7ah battery ? but it getting hot without diode. power adapter was rated at 24vdc 3amps. but as per digital multimeter its giving only 0.3-0.4 Amps . now i have connected 10Amps diode to the 24v+ wire. Still its' not charging . Initially it charged upto 13.1 Voltage FROM FRESH Battery voltage of 12.5 . But Now , when i installed Diode, still it's saying 13.1-13.2-13.1, whats the solution ? Either i go and buy Another Laptop power adapter of 15v.(bcoz i think, that i've shorted/damaged the 24v adapter without diode use) PLEASE HELP.. PLEASE HELP...
That's a wrong answer ! If i connect a 500v supply but the current is too low it won't attain 500v. In my case the current was only 3 Amps and the battery was very discharged because of which it directly showed 14.6V but then in a few hours, the display voltage reduced to 13v and finally stabilized at 13.98V. When you charge a battery, it charges in steps and slowly attains the voltage equivalent to what's coming out of the charger. If the Battery is instantly attaining the 'Charger Voltage' it means ( either the battery is deep discharged ) or ( too old to hold the charge ) or ( the connected power supply is very big ) . There is no other possibility.
*Join this channel to get access to perks:*
ruclips.net/channel/UCWFbPzBb7dCyCWuBA-DBrMAjoin
*Mr.Electron Patreon's Page* - www.patreon.com/mrelectron
*Hindi Channel* - www.youtube.com/@Mr.ElectronHindi
*Alternator Channel* - www.youtube.com/@mrelectron_alternator
*Watsapp Channel* - whatsapp.com/channel/0029VaQmmRaFCCoWOf7huh3G
Finally an indian who didn't write the title in ENglish and talk in hindi
You should learn Urdu and Hindi
@@farhankhan-cc6ui there's no requirement for that ...
Thank you come again....how !.lol
@@farhankhan-cc6ui
No point...you already know English xD
Exactly my thoughts
Thanks for the explanation! I'm sad that I only have sealed batteries and 20v chargers. But, the behavior that the weak battery demonstrated will be helpful for me diagnosing batteries in the future.
Thank you so much
nice video,and tip ,thank you for sharing.
So super nice work
Thank you for all your video
All the best mate !!!!!
Great full contents
Really nice work
great idea Thanks genius
Creative and Nice content
Bro I try it's work thanks soo much 👍👍
i suppose you could try this as a last resort to tossing it, but first charging the battery is current limited up to about 14 volts, then voltage is held and current is tapered off to somewhere around 1/4 amp and is then terminated or held in float mode at around 13.4 volts (above is ballpark and is dependent on actual battery). Also these are agm batteries and should not have enough water in them to spill. If you tip it upside down and it leaks, you have too much water. The vent caps are not supposed to be opened, But like i said if your going to toss it out then sure try to revive and water it, just be careful.
Thanks
Very good
1 questions,
When you use the laptop charger, how you now when the charger will stop charging the battery to avoid continuously Charging that might explode the battery. Is using laptop charger will have cut off system during charging?
Hi,thanks for your tips!That kind of battery could be used for motorbike isn't?Thanks Bhai 🙏
Good
how much voltage needed to charge ups battery alone??
Can i use 15volts and 5amperes in 12v and 7amperes battery?
Correction Guys, this battery is overcharged. The battery is 7ah and the charger outputs current is 3ah so the charging time was supposed to be 7ah÷3ah=2:30minutes and not 17hrs as he said.
but wait .. higher A in chargers means faster charging ? what about the w of the charger ?? also higher w means faster charging like smart phone chargers ???
U are right
Nice
super
Hi please help, how many batteries can I charge with 1 charger. 12v 7ah acid
Great
Thanks Halime Sultan
How did you make the charger? How’d you connect positive and negative
If I understand your correctly: there are 3 ways you can do this. 1) If you already have the original charger that comes with the battery, you only need to get the alligator clips with proper connection for charger. 2) If you dont have the original charger, you need to buy the entire set. 3) You call also purchase a wall to battery unit plug. Hope this help!
Hi brother ru sure we can charge the ups battery by using a laptop charger 🔌?
Can use laptop charger 15v 1.5a to my car battery 12v thanks
Hello sir, my wind turbine generator produces AC 150 v 90 watt, if I'll attached step up trasformer to this generator and make it Ac 220 v. Can I attached 12 v 100 Ah battery charger to this transformer ?
(battery charger rating is :-INPUT =220 v / 50 Hz. OUTPUT =15V 15 AMP)
.......PLEASE REPLY ME SIR......
Can we use other any water
Huuuh Mr electron terlambat....
hi can i use 19V 3.4amp charger for 12V 5.5Ah battery?
Could have added a regulator or something, even resistance to drop the current to a max of 1.5 amp for the first 10 hours before allowing more to surge the system. Also no fuse or any other safety cut off was used to prevent hazzards.
In the end the best way is to use a proper charger that allows you to set the charge current and the cut off voltage. Using back yard measures like this is dangerous
I would have if the battery wasn't deep discharged.
@@MrElectronSar i have a 12v 9ah battery and i have 12v to 24v 4.5ah adjustable universal charger and you say that we can charge our 12v battery by 15v adapter without any issues so when i put the adapter into 15v it gives 15.81v output so this around 16v output so plz reply me can i charge my 12v 9ah battery by 15.81v plz reply sar😊 iam waiting to charge my battery😅
Bro, for lead acid, smf 14v to 16v maximum it's okay...
How long did it take to charge? Is there a problem if i overcharge it? I want let it charging overnight... Thanks for the video!
17 hours..!😲
Will 20v 2.5a work?
Bro please replay.
what if i charged a 12 volt 30amp battery with 19volt 3amp laptop charger. please replay
If the loptop charger is already 12v do i still need a lightbulb?
Instead of opening the cap make a small hole on the rubber cap with soldering iron or paper hole puncher..
i have a question: can i run a 150w motor on a 12V 4AH battery? (the inside was modified to give out 50A instead of 40A if that helps)
Yes you can but not at full power
@@MrElectron thanks. if you have the time to calculate it, at what percentage? if its below 75% i will go with the 80w version
No dear @mr electron and @little raptor you can run the motor at max power, 1: 50A is more than enough for a 150w motor, and 2: lead acid batteries can output crazy amounts of amps, and 3: I’ve tried running a 250w motor on a 4 ah 12v battery and it worked just fine, have a great day / night @mr electron and @little raptor
@@fbi-federalblyatofinvestig3853 ok, yeah it seemed a bit weird to me that that motor would consume more than 50A, but i looked up how to calculate it and 12V.50A=600w, so i can run it at full power. still, thanks for the feedback
Happy to help 😁
Sar i have a 12v 9ah battery and i have 12v to 24v 4.5ah adjustable universal charger and you say that we can charge our 12v battery by 15v adapter without any issues so when i put the adapter into 15v it gives 15.81v output so this around 16v output so plz reply me can i charge my 12v 9ah battery by 15.81v plz reply sar😊 iam waiting to charge my battery😅
What is a “wolts”?
And for 6v battery which adapter or which transformer?
Reply pls i am facing same problem now
6.5V Chargers are the best.
Can I use my laptop recharger
How many hour 2 charge
How much time required to charge 12v and 1.2A battery
6 hrs
I have a 12v 4.5ah lead acid sealed battery it's for a Bluetooth speaker .I charge it with an adjustable power supply at 12.8v to 12.6v and it goes dead after one song..anyone know how I can charge this so it will work for a few hours at least
sorry didn't get the part about the type of water you used to refill the battery, what kind of liquid is that thank you for your informative video looking forward to more content
Water that has not contacted metal, i.e rain water collected in a non metallic container
Thank for all
can i charge a dry 12 v battery like that as well ?
without the liquid then there's no connection or good connection so no charge 🤔🤔
Hello Everyone. I have a question. I have a B&D 750W 6.52amps inverter model PI750AB. For the most part it works perfectly. But I'm experimenting with using it with a smaller battery in my chicken coops when needed. I have it hooked up to a GT12080-HG 12v 8ah battery. I can run a fan, laptop radio etc no problem. But when I plug in a 200w heat lamp the inverter goes yellow and cuts the power. The battery is fully charged. Why is a 750watt inverter shutting down when plugging in a 200watt heat lamp??? Any ideas?
The inverter's rating of 750w is the maximum that the inverter can provide, not the battery. My guess is the small battery isn't providing enough current for the inverter to deliver 200w of power to the heat lamp. 200w divided by 13.4v is 14.9 amperes--quite a bit of current draw for a small lead-acid battery. The inverter tries to pull 15 amperes but can't, so it shuts off. I hope you've got it figured out by now! Maybe try a larger battery, or a different chemistry battery. I believe Lithium-ion or Lithium Iron Phosphate can discharge at faster rates like 15A.
@@waylonk2453 THANK YOU!
@@1realtruthrightnow742 You're most welcome. I'm learning about batteries and power right now too, so it's just my best guess :)
Where did you get the multimeter?
Could u please share a link?
@Mr.Electron
MUSTOOL X1 Clamp Meter:bit.ly/32n1U3s
What is that water?
is it safe to connect 15.3v 3a charger to 12v 3.6ah battery?
Yes it is because capacity doesn’t matter much just put it on for around 4-6 hours because the capacity is lower, if it gets too hot then disconnect the charger because it’s fully charged 😁, have a good day/night sir.
No, there will be too much current for the rated Ah of the battery. It should be a max of 10% of the Ah of the battery (0.1 C), so you need to current limit to 350 mA. Anything faster, even like 20-25%, will heat the battery more, possibly cause gas build-up and will wear the battery out faster.
Hii Sir, my small wind turbine generate Ac 150 v 90 watt. If I'll attached step up trasformer to this generator and the connect laptop charger at the output of step up trasformer, can this connection charge my 12 v 7 ah battery?.... Please reply me Sir, ur feedback is valuable for me
If it is generating 150v ac then no need to connect a transformer. Directly connect the laptop charger and it will still charge your 12v battery
@@MrElectron thank you so much dear sir for reply me. But 150/90=0.6 mA current, and laptop charger output voltage is, DC 15v 3A.
Can this laptop charger received 0.6mA current and charger output current is 3Amp ?
Its 0.6 Amps and yes it will work as long as wind speed is continuous and strong
Music/noise NOT required!
Hi could you tell me if i can use a 19V laptop charger to charge batteries as well , or is this voltage to high ?
i know just a bit about this subject, thanks in advance
btw i like the content you make, keep them comin ! ! !
well actually 19 volts is going to be too much if you want to use a 19 volts laptop charger then you should connect a 12 volt bulb in series with the battery
No he have 12 v adaptor
MY BATTERIES
YUASA NPW36-12
12V 36W
Can i use 19v 1.7A charger
Yes
No!!!!!!!!! 19V is way to high.
I think DC charging sulphates, and AC charging desulphates.
And sir g
Mere pas yek laptop ka adapter hain usme to likha hai 19v output and in my laptop there is written works on 12v kya funda hai pls reply if you're reading me
A laptop battery has a controller and balanced charging unit installed on it that converts 19v of laptop charger to 11.1v or 10.8 in some cases.
Charge flows from higher to lower potential.If the voltage is same there will be zero current flow and the battery won't ever charge.
@@MrElectron thank you for your reply 😁😁😗😗
Charge power plzzz
Volt and Amper
IN REGULAR FASHION, can i use Solar Charge Controller +24v DC Power Adapter for charging 12v7ah battery ?
but it getting hot without diode. power adapter was rated at 24vdc 3amps.
but as per digital multimeter its giving only 0.3-0.4 Amps .
now i have connected 10Amps diode to the 24v+ wire. Still its' not charging . Initially it charged upto 13.1 Voltage FROM FRESH Battery voltage of 12.5 .
But Now , when i installed Diode, still it's saying 13.1-13.2-13.1, whats the solution ?
Either i go and buy Another Laptop power adapter of 15v.(bcoz i think, that i've shorted/damaged the 24v adapter
without diode use)
PLEASE HELP.. PLEASE HELP...
Coooooooool
2:02 Which Water??
Rain
U can also use distilled water
Water name?
Is this real?
Rain water seriously?
قیمت
🇪🇨👍🏻
Aaaa
Re
Wasting time . Throw it away and by a new 1
This is fake
3:40 voltage became high quickly because you are using 15volt laptop charger not proper 12volt battery charger.
0:30 max INITIAL current 1,4A. Too much current...
That's a wrong answer ! If i connect a 500v supply but the current is too low it won't attain 500v.
In my case the current was only 3 Amps and the battery was very discharged because of which it directly showed 14.6V but then in a few hours, the display voltage reduced to 13v and finally stabilized at 13.98V.
When you charge a battery, it charges in steps and slowly attains the voltage equivalent to what's coming out of the charger.
If the Battery is instantly attaining the 'Charger Voltage' it means ( either the battery is deep discharged ) or ( too old to hold the charge ) or ( the connected power supply is very big ) .
There is no other possibility.
@@MrElectron yes you seems good. But for 7AH battery,
3amp charger is enough, additionally it is 15 volt. So it will put considerable difference too
Good