Battery Tender 6V

I think we have talked about what type of battery and what tender is right. I'm not sure a tender is a great solution outside a leadacid. The Optima batteries are not the best to cycle. Battery tenders left on a battery just cycles a battery needlessly. If you don't have a drain when sitting you don't need to cycle a battery or tend it.
 
Some of the fancy pants smart chargers do that stuff but strictly speaking a battery tender should just provide a "float" charge, without all the other jiggery-pokery.
 
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