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
GordonThree wrote:
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.
If we're talking about Lifepo4 chemistry than 4.1 vpc will cook them or shorten their life. 3.65 vpc, jury still out if this will shorten life some even though most those drop in producers recommend charge 14.4-14.6v (3.6-3.65 vpc).
Mine which aren't drop in charge 3.55 vpc (14.2) max. Helps greatly to have a charging source that can be adjusted and not the on size fits all.
