If you had the space i was thinking more of the 4d or 8d size,
I know interstate sells a 4dm that has a cca of 1314 and a ca rating of 1645.
they also have a hrs at ampere load of of 38hrs @ 5amps, 11.5 hrs @ 10 amps and 6.5 hrs @ 25 amps. they use these batteries in rv's and boats where they have lots of acc running at one time. they can take a charge discharge better then regular automotive batteries.
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