Power Calculations made easy

[lblampman]

Good link but be just a little careful there. I noticed when I figured how long a load would run on the batteries they're calculating it to DEAD! That's not good if you want your batteries to last; but not bad if you get 'em cheap and replace them alot.

 

[Redbear]

Lie to the program - its feelings won't be hurt. Put in half the amp-hour rating of the batteries, and it will calculate to 50% discharge!