RV Whole-Coach 3000W Build
RV — Whole-Coach Power
A 12V RV build sized to run the entire coach — a 3000W Renogy inverter, a 900Ah LiFePO4 bank across three 300Ah batteries, a 100A charging system, and dual AC transfer boxes to switch between shore power, generator, or the inverter.
Components in This Build
- Renogy 3000W pure sine wave inverter (12V)
- 3x 300Ah LiFePO4 batteries (900Ah bank)
- 100A charging system
- 2x AC transfer boxes (shore / generator / inverter switching)
This system was built to power an entire RV coach, not just a handful of circuits. A 3000W Renogy inverter and a 900Ah 12V LiFePO4 bank (three 300Ah batteries) give enough capacity and surge headroom to run AC appliances alongside everything else in the coach.
A 100A charging system keeps the bank topped off, and two AC transfer boxes let the RV automatically or manually switch its AC power source between incoming shore power, a generator, or the inverter itself — so the coach stays powered no matter which source is available.