Laptop battery charging circuit

[huzo]

Re: Laptop battery charging circuit

what about the battery that was long without charging and it's dead now? i open the battery, charge it from external PS, and how to get it to work again,since the managment chip is probably not turning the output...

i did that multiple times,and it never works...just yesterday, i charged it from external PS,and it's now charged, i plug it in and it doesn't recognize it, it starts to charge for few seconds and that's that...

[canali]

Re: Laptop battery charging circuit

Thanks..Very useful especially for beginners like me.

[NBel]

Re: Laptop battery charging circuit

what about the battery that was long without charging and it's dead now? i open the battery, charge it from external PS, and how to get it to work again,since the managment chip is probably not turning the output...

i did that multiple times,and it never works...just yesterday, i charged it from external PS,and it's now charged, i plug it in and it doesn't recognize it, it starts to charge for few seconds and that's that...

Controller inside the battery is becoming locked if the cells were deeply discharged, so even if you charge the cells you need to reset the controller. It can be done with different ways, there are hardware and software tools like NLBA, be2works, etc....

[kofe]

Re: Laptop battery charging circuit

Thank You for a great research!
One question to: AC adapter not detected, wrong AC adapter
what is AD_ID voltages for HP, Lenovo and other resistive dividers. (Dell has one-wire bus for it). If that ID voltages are model dependant, some examples please.
Konstantin.

[cecTech]

Re: Laptop battery charging circuit

Thank you for this useful share.
I have a question, which pin of kbc will activate the charging ic to charge the battery?

[doros88]

Re: Laptop battery charging circuit

Thank you for the Information and starting guide for Charger IC !

[Pino21]

Re: Laptop battery charging circuit

thank you, good information

[pacwcbs]

Re: Laptop battery charging circuit

excellent contribution, thanks for sharing

[Gau_saha]

Re: Laptop battery charging circuit

Very useful information. THANKS .

[sancho76]

Re: Laptop battery charging circuit

Nice guide, Thank you!

[ktmmotocross]

Re: Laptop battery charging circuit

what about charger center pins and charger detection circuits?

[apolmhoojhaa]

Re: Laptop battery charging circuit

thank you So much.

[netgearnetgear]

Re: Laptop battery charging circuit

Wonderful post. I had a low battery warning recently on a hp 14-018la laptop. Turns out it was the battery that needed to be replaced. Thanks

[mvrahie]

Re: Laptop battery charging circuit

Thank you for the information 😊

[pappothar]

Re: Laptop battery charging circuit

you guys are really amazing !

[dwnisup91]

Re: Laptop battery charging circuit

Great thread! Thank you for sharing.

[mikeondieki]

Re: Laptop battery charging circuit

Very educating content thanks a lot it helped

[chandrakant]

Re: Laptop battery charging circuit

Thank u

[RetroComputingGrotto]

Re: Laptop battery charging circuit

Some great information here! I'm currently working on a laptop motherboard that wont power on (no power LED even lighting up) so this information is going to help me a lot in the fault-finding process

[adhiea7x]

Re: Laptop battery charging circuit

Thanks for this wealth of information all in one