Acer Aspire One 150 battery recognition problem

• Acer Aspire One AOA150-AB (Linpus: Linux version) does not recognize the battery if the machine is not used for a reasonably long time. So no charging of battery, no booting either.
• After rebooting, the battery charge light stays orange for some 5 minutes and then continuously starts blinking orange roughly with a period of 2-3 seconds. Linux does not provide the battery stats, but says the battery is present. This device is used infrequently and this is the second time it has happened.
• Some forums talked about replacing batteries, etc and hinted it might be a BIOS problem.
• Downloaded the bios from this location here. 
• Had to create a windows USB boot disk using the instructions from here. 
• Extracted the BIOS file into the USB drive and then booted into Windows on the AOA.
• Invoked the Repair Windows option and finally got into Command prompt and ran the Insyde flash tool provided by the Acer site. Upgraded BIOS from 3.5 to 3.10, the version says 3310.
• Booted into Linux and the battery is recognised now and is charged fully. Have to test it again in a bit.