Originally Posted by FrinkTL
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Do we know precisely what hardware component has failed in each case? What part of the overall power system "decides" how/when to send current? What actually reports how much power is available? Is it the battery that reports it's available power to the iPAQ or the iPAQ that queries the battery? I'm wondering which part has failed. For example, it would be informative (to me, at least) to have someone try a non-HP battery in the iPAQ to determine if whether the battery or the core device is the failing component. Perhaps someone with an iPAQ 4700 battery or third party battery could slap one in and see if the problem repeats.
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Been done. Two Mugens failed for the other guy. Mugen reports that there is an error in ID Matching, whatever that means.
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Conversely, it would be equally interesting to see what happens if someone were to put the 210's battery into either another 210 that is over 2 months old and hasn't experienced this problem to see if the problem follows the battery.
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I have tried two batteries, neillm (the other fellow) has tried 4 as of today. It doesn't seem to be the battery, although neillm is in conversation with Mugen about what the battery is reporting when he sent it back to them. There are errors on the battery, but they don't know if it is the battery or the 21x that is generating them.
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I also wonder if it has anything to do with the headphone jack leaving a gaping hole exposed to the battery compartment. Maybe it's a stretch, but if someone lived in a high-humidity location, is it possible that condensation could get into the battery compartment and cause a short? I have the hole sealed off with some electrical tape, but maybe others don't?
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My unit is mostly indoors, in airconditioned spaces, or in my air conditioned car, so humidity is not high. In any event, if it were a real short, then the rate of discharge would be so high that the battery would explode. The battery is rated at 2200 mAh, and it decays from 100% to 0% in one CPU cycle. At 624mhz, that's not much time, which means the heat generated would be phenomenal. Have you considered that the engineers may have intended that hole for air circulation into the battery chamber? Perhaps for cooling? Is taping it shut going to have unintended consequences?
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No matter what, this is indeed a disturbing problem, and I wish I knew portion of the hardware is the root cause.
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As do those of us with the problems. So far I've heard from 5 people with the same symptoms. Some only had it happen once, but a couple are in the same boat with neillm and me.
