Quote:
Originally Posted by 1TUFFUTE
^^^^^whats with the truck batteries?, someone else I think mentioned them earlier as a great/cheaper option!
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Normal lead acid starting automotive battery that a truck has isn't a good battery to use in this type of situation, they're not made for it they're made for a massive hit turning over an engine, then being charged while running.
Deep cycle lead acid or AGM or Gel would be the go to for a solar setup using normal battery technology, but if you want them to last you have to be careful about how far down you let them go before they are charged up, 50% depth of discharge is best for long battery life for a deep cycle, you can go lower but then it won't last as long.
Lithium has its own challenges but you can discharge them down further and bring them back up quicker without negative effects, but they are dangerous if not looked after correctly.