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I gave up on "battery packs" many years ago.
Went over to the 20Ah gel cell (mobility scooters/ golf buggies) battery combined with a triple stage electronic charger (it can NEVER cook your battery) they have lasted over seven years and still going strong.
The max amp draw (at 12V) on the HEQ5pro/ NEQ6pro is, with both axis on max slew, just less than 2A...normal tracking <1A
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