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Thanks thats a good idea, could I use a 12v li-ion cordless drill battery?
(since i already have one)
SLA batteries are expensive compared to the much lighter and smaller RC lithium ion batteries. that is if you are buying online. Many of those li-ion/lipo batteries will have high capacities and can really deliver a lot of current (some over 100A!). Just make sure to treat them carefully, and use a proper charger.
Use a 12V deep cycle SLA. What more do you need?
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