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Bad battery or bad PMU?
Authored by: pruritis ani on Mar 19, '03 10:35:45PM

Another report:

My battery life dropped from >4 hours to around 30 minutes when I upgraded to Jaguar 10.2 from 10.1.5. Since then it has taken a serious turn for the worse, as is evidenced by the tests with this script over time. Moreover, this script gives me a capacity approximately TEN TIMES higher than what everyone here has reported, even though I only get around 8 minutes before it drops much.

Prior to unplugging:
Time ~0:00:00: voltage=15978 flags=5/0x005 amperage=1200 capacity=64239 current=64033 [99.7%]

After unplugging at
Time 0:05.49: voltage=15641 flags=4/0x004 amperage=1112 capacity=64239 current=64027 [99.7%]
Time 7:39.96: voltage=14181 flags=4/0x004 amperage=1161 capacity=64239 current=5016 [7.8%]
Time 8:11.89: voltage=14181 flags=4/0x004 amperage=1290 capacity=64239 current=2007 [3.1%]

Plugged battery back in after 8:58 minutes
Time 08:58.44: voltage=16309 flags=135/0x087 amperage=1269 capacity=63983 current=2017 [3.2%]
Time 13:37.62: voltage=16403 flags=135/0x087 amperage=1200 capacity=63983 current=2101 [3.3%]
Time 17:37.12: voltage=16446 flags=135/0x087 amperage=1200 capacity=63983 current=2160 [3.4%]
Time 25:50.02: voltage=16495 flags=135/0x087 amperage=1200 capacity=63983 current=2258 [3.5%]
Time 33:18.46: voltage=16532 flags=135/0x087 amperage=1200 capacity=63983 current=2327 [3.6%]


Interestingly, even when the powerbook completely shuts down after running out of power, ALL FOUR LIGHTS on the battery light up! Anyone have any ideas?



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