Lithium and DC-DC Charger?
My two group 27 lead acid batteries need replacing. Even though I'm too old to get maximum benefit from lithium longevity, I am thinking about going with a single 100 AH LifePO4 lithium. Doing some r...
Forum Discussion
toddb wrote:
I went without vehicle charging for when I switched over, I only used solar. No problems until the fridge upgrade.
I use a small one now on factory wiring and would recommend it if you want vehicle charging.
Interesting point you bring up.
First, everyone needs to understand that DC compressor refrigerators actually have an inverter inside. They will shutdown at some pre-determined minimum voltage. You need to verify that yours will automatically restart.
Second, of your goal is to MAINTAIN your battery bank voltage, NOT RE-CHARGE a depleted bank, then you probably do not nee a DC-DC charger. Simply connecting you RVs battery to the starting battery connection at your 7 way, is probably adequate !
ONE EXCEPTION ! If you are running a 120VAC refrigerator from an inverter, will your inverter automatically re-start after a temporary low voltage event or do you have to press a button/flip a switch ? If YES, you want a DC-DC charger (because it will maintain proper battery voltage at all times the engine is running).
