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T61 with brand new battery that died in a few months.
Posted: Mon Sep 12, 2022 7:00 am
by devinfriday
Hi, i have putted together a T61 with a T9300 and 8Gb of DDR2 ram with a brand new compatible battery. This battery died a few months after first turn on, if unplugged from AC it did not power on and if it's on AC the notebook insta-turn off if disconnected from the wall outlet. The weird thing is HWMonitor reports 0% wear level and 103% of capacity, the same with BatteryInfoView. What has gone wrong with it?
Is the battery simple a piece of crap?
Re: T61 with brand new battery that died in a few months.
Posted: Fri Oct 14, 2022 7:33 am
by devinfriday
After a few tests i found that the battery is good, i have a spare one with less than 10% of charge that is reported as is from batteryinfoview, so this software is ok, it's the T61's fault, it won't power on only with battery, if i power on AC it starts, but if the AC fails the notebook insta-power off. Maybe some fuse blow up

Re: T61 with brand new battery that died in a few months.
Posted: Sat Dec 10, 2022 2:57 pm
by devinfriday
Up
Re: T61 with brand new battery that died in a few months.
Posted: Mon Mar 13, 2023 9:57 am
by devinfriday
Anyone has some advice to give?
Re: T61 with brand new battery that died in a few months.
Posted: Mon Mar 13, 2023 11:04 am
by axur-delmeria
TBH it's hard to say whether the issue is the laptop or the battery.
If you had another unit to test the battery on, it would be easier to narrow down the issue.
Re: T61 with brand new battery that died in a few months.
Posted: Wed Mar 15, 2023 3:09 pm
by JaroTech
Hi, you may have a faulty fuse, in your case it could be F12.
Re: T61 with brand new battery that died in a few months.
Posted: Mon Mar 20, 2023 4:59 pm
by devinfriday
axur-delmeria wrote:TBH it's hard to say whether the issue is the laptop or the battery.
If you had another unit to test the battery on, it would be easier to narrow down the issue.
I have two T61s but different MTM so they are not compatible. Battery info reports that the battery is good.
Re: T61 with brand new battery that died in a few months.
Posted: Mon Mar 20, 2023 4:59 pm
by devinfriday
JaroTech wrote:Hi, you may have a faulty fuse, in your case it could be F12.
Interesting, can you tell me if it is repairable or not?
Re: T61 with brand new battery that died in a few months.
Posted: Mon Mar 20, 2023 6:35 pm
by JaroTech
To check if the fuse is good, it involves measuring the fuse resistance or the voltage on its terminals. To do this, you need a multimeter and know how to use it.
Re: T61 with brand new battery that died in a few months.
Posted: Sat Mar 25, 2023 7:46 pm
by devinfriday
JaroTech wrote:To check if the fuse is good, it involves measuring the fuse resistance or the voltage on its terminals. To do this, you need a multimeter and know how to use it.
I have found a buyer for the T61, thanks anyway.