Re-Calibrate Toshiba battery meter with Windows 7

Question

I have a Toshiba U300 laptop. Back in the olden days (circa-2000) you could re-calibrate the battery meter from the BIOS when your battery was no longer reading accurately.

My battery was shot, so I bought a brand new one, however Windows 7 still seems to count down the battery life in at the same speed as the old one did. This time, when it alleged 0%, I turned the laptop back on and got another 90 minutes of life out of it, at 0%.

Is there a tool or utility for Toshiba laptops that can fix it back to being accurate? I've read the other threads on SU about cycling the battery but that just doesn't seem to do it in this case.

Update: After the last cycle, the battery meter now reads 100% but the indicator on the front of the laptop is still orange (indicating not fully charged)

Answer 1

You can try and remove the battery and turn the laptop on using the AC/DC adapter only. Then turn the laptop off, re-insert the battery and turn the laptop back on using battery power only and no charger plugged in. This may reset the system automatically so the laptop will read the correct amount of battery charge. Then fully charge the battery with charger. Once fully charged, remove the charger and let the battery drain on its own. Fully charge the battery and now see if it got right!

You could also check here.