Glenn here...
I live on 20 acres off the grid. Been like this since the 90s. I have diesel and solar panels. I got over 2ars from a nice set of 24 - telephone batteries. They were 2 volt at 1180 amps each. I shallow cycled them. I first had 4 - 12v batteries wired in parallel to a 2000w Trace inverter. Now, I have a 3500w 24v outback pure sinewave and used forklift batteries. The forklift batteries are not pretty like the clear cased telephone batteries, but they are affordable. I have eight 165 Matrix solar panels and just added four 195 watt panels. A TriMetric battery meter gives me the vitals.
I recently got a OneWheel. It is powered by a 16 cell, LifePO4 battery. I would like to be able to charge it up out and away so, I got a MPT-7210A MPPT solar charger. It will deliver about 80 watts from the car battery. I want to build either a 36v or 48v LfePO4 battery to power the solar charger. I was thinking of using 32650 5.5ah batteries. A 36v battery would give me one healthy charge and never come close to full discharge. This way, I could take a battery and solar charger in a backpack if needed trail riding.
I live on 20 acres off the grid. Been like this since the 90s. I have diesel and solar panels. I got over 2ars from a nice set of 24 - telephone batteries. They were 2 volt at 1180 amps each. I shallow cycled them. I first had 4 - 12v batteries wired in parallel to a 2000w Trace inverter. Now, I have a 3500w 24v outback pure sinewave and used forklift batteries. The forklift batteries are not pretty like the clear cased telephone batteries, but they are affordable. I have eight 165 Matrix solar panels and just added four 195 watt panels. A TriMetric battery meter gives me the vitals.
I recently got a OneWheel. It is powered by a 16 cell, LifePO4 battery. I would like to be able to charge it up out and away so, I got a MPT-7210A MPPT solar charger. It will deliver about 80 watts from the car battery. I want to build either a 36v or 48v LfePO4 battery to power the solar charger. I was thinking of using 32650 5.5ah batteries. A 36v battery would give me one healthy charge and never come close to full discharge. This way, I could take a battery and solar charger in a backpack if needed trail riding.