My advice to you, is a pair of Lead Acid (LA) 6V 200ah golf cart batteries, wired in series, which creates a 12V 200ah battery. Either flooded, or sealed AGM. Both can be placed in a large plastic tote., with proper bottom support. Lead acid batteries will not freeze if fully charged. (well, not in the lower 48 states)
Any LA battery sitting below 80% full will quickly sulphate in a couple days, so freezing should not be a worry. AGM style LA batteries can be frozen and survive when thawed before charging.
Any LA battery sitting below 80% full will quickly sulphate in a couple days, so freezing should not be a worry. AGM style LA batteries can be frozen and survive when thawed before charging.
Li batteries have little self heating, lead acid batteries have about 10% charge converted to heat, so they will stay warm enough .
Many people ruin their first set of batteries, a cheap set ($200) of golf cart batteries is easier to deal with, then a $5000 battery that dies from being mis-configured.
Many people ruin their first set of batteries, a cheap set ($200) of golf cart batteries is easier to deal with, then a $5000 battery that dies from being mis-configured.
And while I'm thinking about it, how good are these BMS/charge controller/overcurrent protection systems at doing their job? Seems like if they're properly wired and configured they do a great job. But are there problems or pitfalls to using them?
Some "experts" here promote their favorite battery style, forgetting that neophytes have a lot to learn about batteries. And if you are not living in a place full time, what makes more sense, a $200 or $5000 battery ?
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