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Old 19th May 2013, 12:02 PM   #11
AndrewT is offline AndrewT  Scotland
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Join Date: Jul 2004
Location: Scottish Borders
The battery voltage will depend on the temperature, the state of charge and recent charging.
It mat be that the 10.8 is exactly the same as the 11.1, just measured differently.
regards Andrew T.
Sent from my desktop computer using a keyboard
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Old 19th May 2013, 08:55 PM   #12
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Location: Sheffield
Thanks Andrew, I've ordered a 9 cell 7.8Ah one for 21 delivered.
The cheaper alternatives were 4.4-5.2Ah for 15 ish (they varied a few pounds each way).

I figure that if this new battery gives me much more than 3 hours battery life, then my current one is defective and needs replacing. If I get about 3 hours, then I have two decent batteries.

Thank-you, all.

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Old 23rd May 2013, 03:04 PM   #13
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Got about 3 hours out of the new one, without trying.

It also has a bump underneath, which elevates the back end of the laptop from the desk a little. Rather useful.

... So I ordered another one, concluding that the Dell battery is at least a little bit knackered.
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