Building on a rural block

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Dec 16th 2004, 8:25 am

#31

Quinkana

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Joined: Jul 2003

Posts: 1,048

Re: Building on a rural block

Quote:

Originally Posted by Kiwipaul

So a 100Ampere hour battery will run a 1 amp light for 100 hours.

I thought a 1 Ampere hour was 1 amp at 1 volt for 1 hour.

Not 1 amp at 12 volts for 1 hour but I could be wrong.

A 12 Volt 100 Ampere hour battery, from fully charged to fully flat will supply 12 * 100 = 1200 Wh = 1.2 kWh of energy.

Discharged at 1 Ampere it provides 12 * 1 = 12 W of power.

1 Ampere at 1 Volt for 1 hour = 1 Wh of energy at a power of 1 W.