I have three 200ah batteries that have never been used. I have been storing them in a climate controlled storage. Should I be charging them periodically or are they okay to continue without any additional upkeep? What could I charge them with if that is needed? Thank you!
Lead acid need charge, Lithium too, but not so often.
A fully charged Victron Lithium Battery Smart has a max. storage time of 1 year @ 25°C. Self consumption is very low, so in most cases there is no need to recharge them periodically. However, it is a good idea to occasionally check the battery voltage.
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