battery gets to 100% but only lasts a couple minutes

[fartonmyear]

a moment ago my battery got regular charges. lasted a couple hours. i ran a recondition using maximiser but stopped after an hour or so. and now at full charge it only lasts 10 minutes. what's wrong?

[fartonmyear]

ok now it's saying that it's at 99% and it'll take an hour to charge fully. can someone please help me?

[bhtooefr]

First, how old is this battery?

Second, what's the wear level?

(Click on the BMM battery status, click "Battery Information", click "Battery Health", give the info - namely, the "full charge capacity" and the "design capacity")

Also, DO NOT STOP THE CHARGE WHEN DOING A BATTERY REFRESH. Do it with the laptop power OFF, as well. Wait until the charge light stays STEADY green.

Make sure you're using the "Disable Shut-off Timers" profile, and make sure the critical battery alarm is disabled (you want to run it to 0%, and if it's enabled, it'll sleep when it hits 3%). Make sure it's indicating 100% when you unplug it to do this.

[fartonmyear]

it's capacity is at 3.45 Wh. yesterday it was at 37......there's no way it should do that.

[bhtooefr]

Yeah, I'd redo the refresh, possibly multiple times, then.

[fartonmyear]

wouldn't that damage my battery even more?

[Flatdog]

My older T22 does the same thing.

At around 85% it skips to 3% and invokes standby or hibernation.

I disabled hibernation and standby and let it run.

it lasted over an hour with the gauge reading 1% and 0%. I let it drain to nothing and am now recharging it to see if the battery gauge will resync.

[bhtooefr]

It'll do as much damage as a full drain and full recharge, which is one cycle on the battery.

You have to do this to resync the gauge...