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Hi all... My name's Luke, 21, from Australia. I recently bought a secondhand iPAQ 1940... Great little thing... Not bad for what I paid for it...
Anyway, battery life is excellent, except when I go to switch batteries, it loses all of its memory and boots up clean when I put another battery in. In the power control panel, it states that the internal NiMH backup battery is flat. 0%. No matter how much I charge the main battery, backup power stays at 0%.
Any ideas?
not sure about the backup battery, i don't think there is one, but since your device runs WM2003 when you take out the battery it'll lose all the data.
I don't remember what the backup source is on your model: a real battery or something akin to a capacitor. Either way, I recall that it is attached to the motherboard and so not easily user-replacable. Do you turn your iPAQ off before attempting the battery swap? The backup power is really only intended to maintain RAM as you swap batteries, not keep the device fully powered.
The Power control panel claims it's a NiMH backup battery. I know it's only there to preserve memory while I change the main battery, but even if I turn the device off it still loses memory when I remove the battery pack.
The only devices I have used that allowed for easy user replacement of the backup battery were the old HP Jornadas. That was something I really liked about my 568 - it used a button backup battery that was mounted in a slide-out tray. It sounds as though the backup power source on your iPAQ has reached the end of its life and AFAIK, it is mounted on the motherboard, so replacing it would be a fairly involved process.
The only devices I have used that allowed for easy user replacement of the backup battery were the old HP Jornadas. That was something I really liked about my 568 - it used a button backup battery that was mounted in a slide-out tray. It sounds as though the backup power source on your iPAQ has reached the end of its life and AFAIK, it is mounted on the motherboard, so replacing it would be a fairly involved process.
Quite a shame, because I specifically bought this PDA so I could swap battery packs.... My old Zire 31 had this stupid non-replaceable battery so I couldn't get through an entire movie on one charge. Luke
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