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ulvik's avatar
ulvik
Explorer
Sep 20, 2018

Having problem with new batteries going dead Fast!

I just bought a new to us 2015 Big Country 3650RL. I changed the existing older 12 volt batteries for two new 6V golf cart batteries and wired them to 12 volts. I also installed 2 100 watt Renogy Panels, a Renogy Adventurer Li- 30A PWM controller with a Renogy BT-1 Bluetooth Module through a 1500 watt pure sine inverter. Well after charging all day I plugged in my campers shore plug into my inverter and turned off the converter inside on the breaker panel. All worked well and we watched about an hour of TV that night and run a small fan through out the night but woke up at 6AM to both batteries completely dead! What gives I run the exact same setup on my other camper with 12V batteries and it did great with a lot more usage. Everything inside was off and the Fridge was on LP. Anyone have any ideas what it could be or where I need to start looking? Also should I try and run 4 6volt batteries or go to 412V batteries which will let me boondock longer and give me more sustainable power?