to add to TeacherRO.... attempt to standardize batteries, especially if you live in a location (like the West Coast of Florida)that you know is a target for severe weather... if you don't have a genset, a controller charger that works off a 12v cigarette plug is an asset... I chose the Sanyo Eneloop AA platform... items pictured all run off the AAs
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the 12v power tap and the controller charger that works with 12v cigarette plug works well, the GoalZero is really not necessary
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