As MidMOTravler said CCA don't mean squat in our application. A high reserve capacity is what we require. Slow Hand makes a good point on freshness. I always look at the dates and pick the newest one. I keep my trailer on shore power when not in use and only need to add water 2 or 3 times a year, no big deal! If your batteries will see a lot of vibration, are mounted in a confined area, or need to be placed on their side, than AGM's might make be a better alternative.
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2015 3100RL legacy...2005 Ford F-250 CC SB. Tows like a charm! 4/19 Updated to 2017 Chevy 3500 CC SB SRW -hope it tows as well as my F 250 did!
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