Are there any recommendations regarding charging an auxiliary deep cycle battery through the 7 pin vehicle harness? I don't want to over charge it when hooked up to the vehicle alternator. I see in other posts that there should be a circuit breaker between the battery and the appliance/lights in the camper. Is that enough resistance to not overcharge? Also any brand or manufacturer of deep cycle battery that works best?
There are a lot of variables to correctly answer your questions. But depending on your type of vehicle, battery, how long you are driving, etc. it will probably never be fully charged. So I wouldn't worry about overcharging the battery. And the circuits between your battery and camper lights/appliances are completely separate from the charging circuit. If you want a good deep cycle battery look for brands like Crown, Trojan or Rolls. Those that are true deep cycle that have a amp hour(AH) rating, not a marine type battery.
I agree. The vehicle will not overcharge your battery. On my smaller hams, I use a battery "maintainer" when on shore power. It's automatic and also won't overcharge. For larger trailers and systems, a Progressive Dynamics converter will work well and provide clean and constant 12 volts.
Post by wisconsinjoe on Mar 25, 2022 20:01:05 GMT -8
Look for a 200 Amp hour deep cycle battery. Note that you can count on only 100 Amp hours of use without charging (like off grid boondocking). I use a good charger/converter with "smart charging" that trickles as it nears topping pount.