2oldman wrote:
What is the amp rating of your converter?
It's good to remember that 2-6v batteries are just one big 12v in two parts. It's that simple. Charging is the same, assuming your wiring is adequate and clean.
busterbrown73 wrote:
2.... (DC inverter for television/fan, furnace, led lights, LPG fridge, and water pump),
FYI.. the only thing on that list that runs on the inverter is the television.
3. Yes, a true 4 stage is better. 55 amps should be good.
If your 215amp-hour 'battery' has been drawn down to 50%, you need to replenish 107ah, which is at least 2 hours on a 55a charger. This also assumes you've used big enough wire from the converter to the batteries. Many of us use a tri-metric (I think) meter to measure amps in and out. A bit more accurate than voltage.
5. Yeah, too small of a charger takes forever.
All this said, it's common with us boondockers that we never get a 100% charge except on shore power. Reason is, flooded batteries take much longer than you think due to the absorption phase. I have Lithium batteries which don't have this problem.
I'm not sure the amp rating of my converter. Haven't looked. Will do this weekend. I own a typical 30 amp lightweight travel trailer from Keystone.
I would love to invest in lithium. Although, price is a barrier. Battle Born 100 amp hour batteries are $950 each. I may upgrade next year if an Alaska trip comes to fruition.
If my OEM converter is anything less than 40 amps, I will probably invest in a smart 3 or 4 phase converter.
