My laptop only lasts for around one hour on its battery before it hibernates due when the critical battery alarm occurs (3% charge left). If I disable any action in Windows XP when a critical battery alarm occurs so that it does not hibernate, the battery lasts for over an extra hour longer before it powers down. Someone told me that I need to 'calibrate' the battery by letting it go completely flat - I've done this a couple of times, but I still get the critical battery alarm after 1 hour of use. How do I 'calibrate' it?
Thanks bazb - it's not an HP (it's a Gateway, second hand with no manual) but I have already done what they advise and it didn't help, unfortunately.
I'm now wondering what happens when you put a brand new battery in a laptop - how does the laptop know it is new and therefore higher capacity, or maybe it doesn't, and you get the same poor apparent battery life?
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