i am trying to charge the regular battery for my tr2ap3 and it seems stuck at 63% is this battery toast?  how can i reset it so it will fully charge.  i have never had this happen before so i am at a loss.

Thanks!

Not sure if it will help, but I’d use the battery till it dies, then try to recharge it…

Erik

I’ve also heard that deep discharging the battery is one of the best fixes.

Good luck, wabbit

thanks for the info.  too bad i am about to get on a plane so i will only have 63% for the regular batt.  good thing i bought the exteneded one as well. 

i will drain it out and let you know.

THANKS!

Hi, all.
What’s the news on this?  Anyone find out if their noncharging batteries got fixed by a deep-discharge, or did you have to replace them in the end?

Thanks,
Sam

Try recalibrating your battery. In my old Compaq x1010US, there was a battery recalibration option in the Bios ( my m700 had the option in the Power Management ). The recalibration process should drain your battery’s stored power and recharge it to “correct” the actual capacity your battery can hold.

Hope that helps.

-best,
Concura

22 June

Hi, all.

I ordered a brand new Sony-OEM battery—-> same problem. :(

The laptop can run off of the battery alone (draining it), and can run off of AC power, but when AC is plugged in the battery never recharges.

I’ve tried testing the power supply to see if the problem is there.  The TR power supply is 16V/4.0A, I tried swapping with an SRX power supply, which is close but not identical—16V/3.75A.  The SRX was able to recharge its battery using the TR’s power supply, but *not* vice versa.  This may not be conclusive—there’s a chance that a power supply capable of exactly 4.0A is required for battery recharging in the TR… but it still doesn’t look good.  Seems to imply the problem is likely not in the supply.

This leaves the laptop itself, and the AC power control circuit that splits power between the laptop, and the battery recharging.  This is the one component that can’t be swapped out easily, and would likely require time and $$$ to be shipped off for repairs.

OUCH!

Anyone else having this problem with batteries not charging?

Anyone find a magic solution short of sending their TR off for repairs?

Thanks,
Sam

i drained it to zero and then charged it up and then drained it again.  this has fixed it for me.

i hope that works for you!!

wabbitt

Discharging your battery is supposed to help.

Our IT department recommends running your battery out at least once every two weeks.  Of course, it always helps when the IT department hands out replacement batteries when all the juice is gone.

Although lithium-ion is memory-free in terms of performance deterioration, batteries with fuel gauges exhibit what engineers refer to as “digital memory”. Here is the reason: Short discharges with subsequent recharges do not provide the periodic calibration needed to synchronize the fuel gauge with the battery’s state-of-charge. A deliberate full discharge and recharge every 30 charges corrects this problem. Letting the battery run down to the cut-off point in the equipment will do this. If ignored, the fuel gauge will become increasingly less accurate.

http://www.batteryuniversity.com/parttwo-34.htm