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Forum: Electrical: Batteries, Generators & Solar

24-04-2014, 14:35

Replies: 32

Are my Maths Correct?

Views: 3,528

Posted By Stumble

Re: Are my maths correct?

So...

voltage is pressure
amps is rate and
amp-hr is volume

Got it. The mechanical corollary works well for me.

Forum: Electrical: Batteries, Generators & Solar

23-04-2014, 13:22

Replies: 32

Are my Maths Correct?

Views: 3,528

Posted By Stumble

Re: Are my maths correct?

Andrew.

I know I always get it wrong. And I generally post my inability to deal with electricity. Can you provide a primer for me to try and get this stuff right in my head?

Forum: Electrical: Batteries, Generators & Solar

22-04-2014, 16:08

Replies: 32

Are my Maths Correct?

Views: 3,528

Posted By Stumble

Re: Are my maths correct?

A high end bike generator with an in shape rider generates about 100 watts/hr. Assuming charging voltage of 13.5V you are going to make about 7.4 amps/hr. So to replace the 300amp-hrs you used you...

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