Lithium 12 volt battery Is there a clear leader?
Stick the battery in Connect the wires And the battery has a management system built in Is there a favorite?
Forum Discussion
Cheap is build your own. It's rocket science, but only a little, I think you'd do a great job.
Hardest part is buying a bulk pallet of recycling batteries, disassembling the packs and weeding out the cells that are still healthy. Then you can combine them 3 or 4 in series, and as many in parallel rows as you desire. Cost goes up a little if you buy pre-screened cells, or way up if you buy new cells.
The maintenance circuits are pretty much standard equipment now from our friends on the other side of the Pacific. Charging is getting easier now, just supply constant voltage at 4.1 (or 4.2) Vpc and let 'r rip, the maintenance circuit will disconnect cells as they hit full.
Hardest part is buying a bulk pallet of recycling batteries, disassembling the packs and weeding out the cells that are still healthy. Then you can combine them 3 or 4 in series, and as many in parallel rows as you desire. Cost goes up a little if you buy pre-screened cells, or way up if you buy new cells.
The maintenance circuits are pretty much standard equipment now from our friends on the other side of the Pacific. Charging is getting easier now, just supply constant voltage at 4.1 (or 4.2) Vpc and let 'r rip, the maintenance circuit will disconnect cells as they hit full.
