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Old 06-12-2008, 07:44 PM   #1 (permalink)
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Default Battery not charging above 90%

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I started charging the battery yesterday from my laptops, it went from 10% to 90% but now its been stuck there for 6 hrs. I tried two laptops, it wont go above 90%. And whenver I connect the cable the blackberry gives the message that the USb current is not sufficient. Which is wierd since the USB ports on the laptops can power external hard drives
So is the battery bad ?
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Old 06-12-2008, 08:20 PM   #2 (permalink)
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your USB port probably doesnt supply enough amperage to top off the battery. as for comparing it to an external hard drive that is equipped with a 2.5" laptop hard disk, that is an ill comparison as the hard disk is designed to run off two USB ports at the same time to double the amperage. your phone is given access to only half the amperage with its single cable.

your phone battery, OTOH, is designed to be charged at 5V DC, which all USB ports provide, but with no less than 700mA of current, which most USB ports do NOT provide.

your battery is not bad. plug it into the wall with its wall charger. USB port charging is supposed to be used in a pinch, not as a routine.
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Last edited by oakie : 06-12-2008 at 08:21 PM.
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Old 06-12-2008, 08:31 PM   #3 (permalink)
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Quote:
Originally Posted by oakie View Post
as for comparing it to an external hard drive that is equipped with a 2.5" laptop hard disk, that is an ill comparison as the hard disk is designed to run off two USB ports at the same time to double the amperage. your phone is given access to only half the amperage with its single cable.
.

Ah, but th external drive only runs off one USB port in both the laptops I'm talkign about.

I didnt know USB charging wasnt meant to be the standard charging routine for blackberries.
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Old 06-12-2008, 09:32 PM   #4 (permalink)
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Originally Posted by SkullCandy View Post
Ah, but th external drive only runs off one USB port in both the laptops I'm talkign about.

I didnt know USB charging wasnt meant to be the standard charging routine for blackberries.
then the drive is designed to work off of 600mA or less. either way, the blackberry requires at least 700mA for proper charging. a single USB port doesnt provide that. get it?
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Old 06-12-2008, 11:07 PM   #5 (permalink)
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then the drive is designed to work off of 600mA or less. either way, the blackberry requires at least 700mA for proper charging. a single USB port doesnt provide that. get it?
Yeah, I put it on the wall charger and it went from 90% to 100% in 30 mins

I still wish the USB charging was enough.
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