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If you want light weight and plenty of capacity and current you want a Lithium battery. They are half the weight and can be drained to 10% with no damage. But they come at a price and require a special charger.
Otherwise go an AGM deep cycle battery. Remember SLA type batteries should only be discharged to 50% of the rated capacity. if you wish to have them last more than 500 cycles.
The output voltage is not constant either unlike Lithium.
Last edited by Chris.B; 06-11-2017 at 02:31 PM.
Reason: spelling
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