Comment 16 for bug 481576

Kevin wrote above about loss of Li-Ion capacity by draining it. I took my (rather new) battery back for warrantee since capacity was so low. What I found is a problem in battery management on the laptop/software.

My battery powers the unit for 25-30 minutes. I believe that failure to hibernate is due to sudden collapse of power - the machine tries but runs out of juice. When the store ran the battery on their test equipment, it came back charged and ran for over 3 hours.

Something in the power management has written a value into the battery memory that isn't the correct capacity for this battery. The result is that the battery refuses to accept a charge. The symptom reported here may be generated by some other portion of power management.

If anyone can tell me how to reset the battery capacity, I'd like to know. This battery has much more capacity than I am getting.