I use a Battery Tender on my boat
this one I believe it is
022-0150-DL-WH
before using this I replaced far too many batteries that died due to long storage times and self discharge. Since using this, knock on wood, I've gone a long time with no problems. I give it high marks!
On my MH, I installed disconnects on each battery and haven't had a problem, storing roughly 3 months without use, usually less. I think these trickle chargers really pay for themselves for batteries that see much longer storage times... maybe 5, 6 months and more....
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