The two FLA golf cart batteries (240ah total, 120ah usable when they were new) on our travel trailer are five years old and are approaching the end of their useful life.
Thinking about building a 12v LiFePO4 to replace them with.
Trailer has 400 watts of solar with a Bogart Engineering SC-2030 Solar Charge Controller and TriMetric TM-2030 Battery Monitor and the old pre-lithium Progressive Dynamics 4655 converter. Mostly dry camp/boondock so converter isn't used much. I plan on adding a Dc to Dc charger for the truck to trailer connection.
Trailer has a small Morningstar SureSine SI-300 watt inverter currently installed. Depending of future battery I may add an inverter large enough to power a small microwave.
First thought was a four cell 280ah battery with EVE or Lishen cells.
Then I read a bunch of posts about not using cells above 200ah in mobile applications.
Looked at CALB and Fortune cells
That got me thinking of using 16 100ah plastic cased cells or 16 AL cased 105ah cells with two (or possibly 4) Overkill 120 amp BMS.
Then I read about the difficulties of keeping multiple paralleled batteries balanced - which leads me back to
one or two 260ah batteries.
Any advise or insight would be appreciated.
Bill
Thinking about building a 12v LiFePO4 to replace them with.
Trailer has 400 watts of solar with a Bogart Engineering SC-2030 Solar Charge Controller and TriMetric TM-2030 Battery Monitor and the old pre-lithium Progressive Dynamics 4655 converter. Mostly dry camp/boondock so converter isn't used much. I plan on adding a Dc to Dc charger for the truck to trailer connection.
Trailer has a small Morningstar SureSine SI-300 watt inverter currently installed. Depending of future battery I may add an inverter large enough to power a small microwave.
First thought was a four cell 280ah battery with EVE or Lishen cells.
Then I read a bunch of posts about not using cells above 200ah in mobile applications.
Looked at CALB and Fortune cells
That got me thinking of using 16 100ah plastic cased cells or 16 AL cased 105ah cells with two (or possibly 4) Overkill 120 amp BMS.
Then I read about the difficulties of keeping multiple paralleled batteries balanced - which leads me back to
one or two 260ah batteries.
Any advise or insight would be appreciated.
Bill