Z60m turns off when unplugged

[rajm]

My Z60m's battery light keeps flashing yellow, but the battery utility indicates 100% charge with 42.17 Wh. When I unplug the AC adapter the computer turns off right away even though the battery should have enough charge to run it for over 90 min. Any ideas on what is wrong?

Thanks.

[Neil]

Sounds like the battery is dead, and BMM is giving you wrong info. What does BMM battery health show?

[rajm]

BMM says its holding 50% design capacity.

[Neil]

Have you tried removing the battery, boot with no battery, then re-install the battery, and see if you get the same result?

A blinking amber battery light means it is not charging. Once the battery is accepting a charge the light will be steady amber until fully charged, then the light turns green.

[rajm]

It is indeed the battery. I just placed my Z60m battery into a T60 and had the same problem. For some reason, though I cannot put the T60 battery into the Z60m as the notches seem a little different.

Thanks.