Battery Tender question
Let me preface this by saying when comes to electricity I'm not the sharpest knife in the drawer. I just installed a harness to my truck battery to run my Battery Tender this winter. The truck and ...
Forum Discussion
Most of those little battery maintainers don't have enough juice to keep more than one battery fully charged, especially so if there are parasitic loads present.
I have a two amp maintaner, and I left it for a few months on two 95Ah group 24s that were connected in parallel, but were removed from the RV. It boiled them almost dry and ruined both.
Bought a new set identical, and charged them not connected in parallel, with the same maintainer and had no problem. I then decided to read the manual for the maintainer, and it has a max Ah battery that it will charge & maintain, and two 95Ah together (190Ah) was too much.
So.....I'd suggest having a look at the manual of your maintainer. 3 full sized batteries connected together may be too much, fully charged to start or not.
I have a two amp maintaner, and I left it for a few months on two 95Ah group 24s that were connected in parallel, but were removed from the RV. It boiled them almost dry and ruined both.
Bought a new set identical, and charged them not connected in parallel, with the same maintainer and had no problem. I then decided to read the manual for the maintainer, and it has a max Ah battery that it will charge & maintain, and two 95Ah together (190Ah) was too much.
So.....I'd suggest having a look at the manual of your maintainer. 3 full sized batteries connected together may be too much, fully charged to start or not.
