li-ion laptop battery regeneration

[mort1011]

Hi all

Is there a way to regenerate a li-ion battery if the charge becomes weak and discharges quickly

just checking

mOrt

P.S. im running a dell inspiron 4100 and the 1691p battery

thanks in advanced

mOrt

 

[MJ99]

Also interested in and safe possibilities.
Ccompaq Presario 700 series

 

[fbrdphreak]

I sincerely doubt it. Usually if a battery comes into that state, it is because of physical changes within the battery like different cells becoming inactive or corroded or something; I'm no chemical engineer (EE actually 😉), but to my knowledge if your battery is that far along generally only companies that have the proper machinery to refurbish batteries can fix that.
The only thing you can try is doing a complete discharge, letting the system fully drain the battery and cut off, then do a deep charge overnight without turning the laptop on. I doubt it'll fix it though.

 

[Paperlantern]

Originally posted by: fbrdphreak
I sincerely doubt it. Usually if a battery comes into that state, it is because of physical changes within the battery like different cells becoming inactive or corroded or something; I'm no chemical engineer (EE actually 😉), but to my knowledge if your battery is that far along generally only companies that have the proper machinery to refurbish batteries can fix that.
The only thing you can try is doing a complete discharge, letting the system fully drain the battery and cut off, then do a deep charge overnight without turning the laptop on. I doubt it'll fix it though.

hes right, it generally wont fix it, the only way to "refurbish" a battery is to literally replace the cells inside with fresh ones.

 

[Marcuf]

I have heard of this problem too.

mine is a year old, so I guess i can look forward to this problem soon.

 

[wirednuts]

hes right, it generally wont fix it, the only way to "refurbish" a battery is to literally replace the cells inside with fresh ones.

which you cant even do on modern laptop batteries. as soon as you disconnect the safety circuits from all power, they automatically disable themselves, making it impossible to ever use again. the cells will be new, but the circuity will be disabled permanently.

 

[corkyg]

Batteries operate on a chemical process. Once the chemicals' electro potential is exhausted, they are gone. Regeneration would require chemical replacement. Such batteries are sealed, and the manufacturing process to regenerate would be more expensive than a new battery.

Echo Wirednuts' response. Short answer - no.

 

[Muse]

which you cant even do on modern laptop batteries. as soon as you disconnect the safety circuits from all power, they automatically disable themselves, making it impossible to ever use again. the cells will be new, but the circuity will be disabled permanently.

At least part of the reason for the sophisticated circuitry in li-ion batteries (and their chargers) that disable them is the potential for catastrophic fires! Not a good idea to tinker with them, and if you do, chances are they won't function.