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Is it any parameter to renew battery "needs to b replaced" ?
Posted: Sun Jul 08, 2012 12:00 pm
by rychuu
I have few batteries which are poor condition and Lenovo's did not charge it. Is it any chip which can be resettable for get 3 minutes mobility? I need only 3 minutes...

Re: Is it any parameter to renew battery "needs to b replaced" ?
Posted: Sun Jul 08, 2012 2:23 pm
by RealBlackStuff
I bet it's much easier to borrow a battery from another, similar laptop, such as:
Lenovo ThinkPad T60/T61/R60/R61/X60/X61/T4xx/T5xx/W5xx/X2xx/E4xx/E5xx/L4xx/L5xx/ etc. Series.
Using
any broken motherboard from a T60/T61/R60/R61/X60/X61/T400/T500 and newer Thinkpad and
any dead battery for one of those, I made my own
battery extension cord, by cutting out the battery connectors from such a dead mobo and such a dead battery, and soldering them together, using a length of 7-wire cable (cut out of an old IDE cable from a PC).
This lets me use ANY shape battery in ANY shape laptop that uses the same 7-pin battery connectors.
You could also try and find a T60 interposer card P/N 41W1130 and cut its connector in half and extend that (as above).
It's the leftmost black piece on this picture:
EDIT: The same applies to A2x/A3x/R3x/R4x/R5x/T2x/T3x/T4x/X2x/X3x/X4x that all use 56W or 72W chargers and have 5-pin connectors (needing only 5 wires).
You can also use a T4x Interposer card P/N 39T0030.
"Ready" cables look like this:
https://imgur.com/a/QrZZCRb
Re: Is it any parameter to renew battery "needs to b replaced" ?
Posted: Tue Jul 10, 2012 4:58 am
by twistero
RealBlackStuff wrote:
Using any broken motherboard from a T60/T61/R60/R61/X60/X61/T400/T500 and newer Thinkpad and any dead battery for one of those, I made my own battery extension cord, by cutting out the battery connectors from such a dead mobo and such a dead battery, and soldering them together, using a length of 7-wire cable (cut out of an old IDE cable from a PC).
This lets me use ANY shape battery in ANY shape laptop that uses the same 7-pin battery connectors.
Have you ever used a battery that has a different voltage from the original fitting battery? I believe the majority of ThinkPad li-ion batteries come in 3-, 6- and 9-cell variations, i.e. 10.8V, but there are also 4- and 8-cell batteries (e.g. for X-series and tablets) that are 14.4V.
Re: Is it any parameter to renew battery "needs to b replaced" ?
Posted: Tue Jul 10, 2012 6:07 am
by RealBlackStuff
Yes, and it works both ways.
See also this:
http://www.laptopbatteryexpress.com/Lap ... /11929.htm
Scroll down to:
What do the power ratings mean - mAh, Volts, and Watts?
See also:
http://forum.thinkpads.com/viewtopic.ph ... &view=next
Re: Is it any parameter to renew battery "needs to b replaced" ?
Posted: Wed Aug 30, 2017 12:49 pm
by axur-delmeria
RealBlackStuff,
I don't have an interposer like that. Can I take the connector from a dead battery and mate it with the connector from a dead Thinkpad system board?
Re: Is it any parameter to renew battery "needs to b replaced" ?
Posted: Wed Aug 30, 2017 1:30 pm
by RealBlackStuff
Repeat from my 1st post above:
RealBlackStuff wrote: ↑Sun Jul 08, 2012 2:23 pm
Using
any broken motherboard from a T60/T61/R60/R61/X60/X61/T400/T500 and newer Thinkpad and
any dead battery for one of those, I made my own
battery extension cord, by cutting out the battery connectors from such a dead mobo and such a dead battery, and soldering them together, using a length of 7-wire cable (cut out of an old IDE cable from a PC).
Re: Is it any parameter to renew battery "needs to b replaced" ?
Posted: Thu Aug 31, 2017 12:06 am
by axur-delmeria
Thanks. I should stop browsing the forum when half-asleep.

Re: Is it any parameter to renew battery "needs to b replaced" ?
Posted: Thu Sep 21, 2017 11:47 am
by retired
Hey RBS - thanks again - don't have access to any of that stuff so just may grab a $10 battery off Ebay - again thanks for the info.