54.6v so 13S
Mains charger only 3A so 5-6hours if not depleted all the way.
At that rate 53V would be ideal for longevity, 54.0 at most (CC-only) for faster charge higher currents.
Max 10-12A rate or 600W will take a couple hours, higher will reduce longevity a bit.
Automotive 12v, AKA 14.4v
OK, but you will need a thousand kWh of energy input, you need to plan for an actual source.
Are you driving for 2 hours and charging off the alternator every charge cycle? You don't want to drain your car battery, won't be enough anyway.
A genset might be worth it if going off grid frequently.
Or piles of solar panels? But then you likely need a buffer bank or you can only ride at night
> Are you always charging from DC or only sometimes?
A. Will use standard AC charger when possible. DC charging for when transporting in vehicle.
I meant how often, just a few weekends per year, or full time?
> A. Drok (chinese I think) https://smile.amazon.com/gp/product/B07 ... UTF8&psc=1
Stick to 10A should be OK. Do not draw off your car battery unless supported by charge input
> **you** need to determine the stop-charge point, if you let it go too long or something fails at best bad for longevity, worst case a bad fire!
A. Could I lower the charge voltage and it self limit? I can adjust the charge voltage and amperage to whatever would work best.
No, follow the profile I gave above, watch voltage at the battery rise, stop when it hits. That's CC charging. For precision, like benchmarking holding Absorb/CV gets more complicated, no reason for that in normal usage.
For CC+CV charging, or to analyze the way your charger works, you need an ammeter. Included in a coulomb-counter if you want see your Ah transfer totals.