Coach Battery
I have a 2011 31' Jayco Greyhawk DS. The coach battery is failing and needs to be replaced. It currently has a Marine Master DP 27. 650 Cold cranking amps. Since it only has one battery I would like ...
Forum Discussion
Dakzuki wrote:Cobra21 wrote:
The larger cold cranking amps may also indicate more amp. hours. I do pay attention to cold cranking amps, as my house battery also starts my generator.
Brian
It is not a direct relationship because CCA indicates surge capability for heavy short loads. A generator starter is far from that.
The generator starter is a reasonably heavy load. Mine averages somewhere in the vicinity of 100A when it's cranking, according to my panel ammeter, give or take a fair bit. Compared to other typical house loads if one doesn't have a largish inverter, it's certainly an outlier.
