AnandTech Forums How do you calculate the WHr of a battery?
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 11-27-2005, 08:51 PM #1 Gunslinger08 Lifer     Join Date: Nov 2001 Posts: 13,236 How do you calculate the WHr of a battery? Say I have a battery which is 10.8V and 4.0 AHr, how would I determine the WHr?
 11-27-2005, 08:53 PM #2 ThisIsMatt Banned   Join Date: Aug 2000 Posts: 11,823 How do you calculate the WHr of a battery? well, watts is amps * volts...
11-27-2005, 08:56 PM   #3
Analog
Lifer

Join Date: Jan 2002
Posts: 12,755
How do you calculate the WHr of a battery?

Quote:
 Originally posted by: ThisIsMatt well, watts is amps * volts...
Not that simple, as the battery voltage is not linear with time as it discharges.
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 11-27-2005, 08:57 PM #4 RU482 Lifer     Join Date: Apr 2000 Posts: 12,681 How do you calculate the WHr of a battery? what do you use watt hours for??...just curious
11-27-2005, 08:58 PM   #5
mugs
Lifer

Join Date: Apr 2003
Posts: 48,893
How do you calculate the WHr of a battery?

Quote:
 Originally posted by: redly1 what do you use watt hours for??...just curious
Well if you know how many watts a device uses... you could figure out how many hours the batteries would last.
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