[bcrvman]

Originally Posted by nsdtr3

Hello RV'ers,

We have a Montana 40ft 5th wheel with 4 - 6volt Trojan batteries and they lose charge and we have to jump start the batteries to turn on our generator to recharge the batteries. We do have solar panels but the RV is stored under a a roof where no direct sun hits the solar panels, just ambient light from the rear and front of the RV. Wondered about changing to Lithium batteries like the RELiON 12V 300Ah Lithium Battery
Item No. 122875
sale price $3,429.99 was $3,488.95

The 6 volt batteries say 225 AH @ 20 hr - 185 AH @ 5 hr.

Which set up gives me the most energy and will the Lithium lose charge as quick as the deep cycle batteries?

Thanks for the help and advice,
John & Marie

If you do not have a battery monitor like a Victron or Bogart get one. I bought mine a year before the RV. Lithium loses charge MUCH slower but you will also need to make sure your converter can charge it properly. Usually the AGM charge formula is good enough.

Lead acid can onky be used down to 50%, LiFePO4 down to 80 or 90