Question about Compaq Presario 2170US Notebook

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AC/Battery powerup I have a 2170us that will power and run fine on AC power, yet shuts off when AC is disconected. The bateries have been optimized, show 100% charge yet it will not powerup on battery power. Thoughts?

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Well I think if you a tester test the battery if it is fine. It is not absolute sure that the battery is fine because it shows it is fine from the laptop.

If the battery is fine then there is something wrong at the connection of the battery with the motherboard.

Posted on Jan 31, 2008


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First thing you do to power your laptop on again try removing the battery and the charger complitly leave it for 10 sec without power then press the on off switch for 2 or 3 times without puting the power or batery later try not to put the battery and put only the power adapter and start your laptop dose it starts if yes good shut it down and put the batery in and start the laptop if its starting and leave it running for cuppul of hours and then again remove the power adapter and let it run the system with batery power if it stays on and fine you are ok and fine there was just a power dump but if it fails in any case like fails to boot with power adapter and so you have adapter issue need to be checked if dosent work with batery it self its a batery issue and needs replacement .
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ok sounds like you have a dead battery
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posible causes:
1.1) old dead batery/
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did you leave your headlights turnt on and drained the battery of its charge?if so get a jump start and then run the car for 30-45 mins to rechagre the battery

if you have at your disposal anothere batery that you know has a good charge
try starting your car with that batery(not using jumper cables) hook it up!
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