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T450s won't boot: mute, mic & Fn buttons on; power LED flashes 3x when AC power connected. Help? : r/thinkpad
![I have a Lenovo T400 thinkpad laptop which is about 4 years old. Suddenly the battery stopped charging. I switched I have a Lenovo T400 thinkpad laptop which is about 4 years old. Suddenly the battery stopped charging. I switched](https://f01.justanswer.com/JACUSTOMER6p5w3osu/2012-07-21_163614_bat1basic.jpg)
I have a Lenovo T400 thinkpad laptop which is about 4 years old. Suddenly the battery stopped charging. I switched
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4 Cell Battery for ASUS A31N1319 A41N1308 X451C X551C X551CA X451CA X451 X551 US 603964542076 | eBay
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