Liberty's LNV100 is a StormCell battery backup/inverter that automatically switches a 120V single-phase sewage or grinder pump up to 1 HP to battery power during an outage — the only LNV model that can run a grinder pump (tested with the PRG101 ProVore grinder). Compatible with Liberty's LE40, LE50, and PRG101 pumps up to 15A. Requires a 24V battery bank (2 batteries, sold separately; works with lithium or lead-acid). Plug & play install (under 10 minutes), low-distortion pure sine wave output (<3% distortion), 1800 watts max continuous / 3600 watts peak, 45A/500ms startup surge, an audible low-battery alarm, and status LEDs for power, charging, and battery health. 25 lb, 25.5" x 9.75" x 3.75".