Re: A solar panel thread
The corollary to this is that the less you allow a battery in deep cycle service to discharge, the less of its capacity you are using.
For instance, if you have a 100-Amp-hour battery and you stick at a 50-percent discharge routine, then you will only have 50-amp-hours ( 50 amps for 1 hour; 25 amps for 2 hours; 12.5 amps for 1 hour etc) available from the battery between recharges. If your needs are for 100-ah between charges, and you stick to a 50-percent d/c max, then you need a 200 AH battery.
So you could discharge at a higher rate to keep your batteries smaller and lighter, but they will die and you'll need to buy replacements sooner. Or you can pay more up-front for a bigger battery ( or bank) that will last longer.
This new ship here is fitted according to the reported increase of knowledge among mankind. Namely, she is cumbered end to end with bells and trumpets and clocks and wires. It has been told to me she can call voices out of the air or the waters to con the ship while her crew sleep. But sleep though lightly. It has not yet been told to me that the sea has ceased to be the sea.--Rudyard Kipling