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What's DOS?
Posts: 1
Registered: ‎09-04-2013
Location: Netherlands
Views: 443
Message 1 of 2

Thinkpad A30 thinks it's running on battery

The other day I turned on my computer (after it had been off for about a week) and it would not boot up--I received a "critical low battery" error. The thing is, ,there was no battery in the machine. I popped in a long-expired battery to see what would happen and the computer would not even turn on.

I have ruled out the A/C adapter--I have another laptop of the same model which boots up just fine with either adapter, but this one will not boot with either.

I finally got the machine to boot up by popping in the battery at a strategic moment just before the error appears. It works fine as long as I leave it running, but Windows thinks that it is running from the battery ("Current Power Source: Batteries - Total Battery Power Remaining: Unknown") and the computer dies instantly if I remove the battery.

I have tried uninstalling and reinstalling the battery in Device Manager to no avail. Is there anything else I can do, or do I need to make the backup laptop my primary?

Posts: 7,626
Registered: ‎11-23-2007
Location: USA
Views: 405
Message 2 of 2

Re: Thinkpad A30 thinks it's running on battery

Welcome to the forum!


Sounds to me like your A30 has developed a motherboard problem.


Try the old trick:


Remove the battery, unplug the power adapter, hard and media drives.


Press the "power" button ten times in a row holding it down for ten seconds each time and thirty seconds the last time around.


Plug the adapter - but nothing else - back in and try to power on.


Let us know how it goes.


Good luck.



In daily use: R60F, R500F, T61, T410

Collecting dust: T60

Enjoying retirement: A31p, T42p,

Non-ThinkPads: Panasonic CF-31 & CF-52, HP 8760W

Starting Thursday, 08/14/2014 I'll be away from the forums until further notice. Please do NOT send private messages since I won't be able to read them. Thank you.

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