What can a 48V 100Ah battery run?

It stores about 5.1 kWh, enough for a small off-grid cabin, an RV house bank or a modest home backup circuit. Actual runtime depends on your inverter and loads.

Does it work with a standard 48V inverter?

Yes. A 48V nominal battery pairs with 48V hybrid inverters and off-grid inverters. Check that your inverter's charge profile supports LiFePO4.

How is it different from a 12V battery?

It delivers 48 volts directly, so you avoid wiring four 12V batteries in series. That means fewer connections and no balancing between separate units.

Can it be charged below freezing?

LiFePO4 cells should not be charged below 0°C (32°F). Unless the battery has built-in low-temperature cutoff, keep charging above freezing.

Typically the battery itself with terminal hardware. Confirm whether a charger or cables are included before buying, since they usually are not.

Is it worth it over lead-acid?

For daily cycling, yes: LiFePO4 lasts many more cycles and weighs much less. For occasional backup use, a cheaper lead-acid bank can still make sense.