TonKor OneBox 15K15 is the most powerful model in TonKor’s all-in-one home energy storage lineup. It combines a 15kW off-grid inverter, a 15kWh expandable LiFePO4 battery, and an intelligent power management system into one sleek, indoor cabinet.

With support for solar PV input and AC charging, this system provides uninterrupted, stable electricity for large households, multi-room residences, farms, or backup-sensitive locations.

Built for quiet operation, easy setup, and long-term use, the OneBox 15K15 is your complete off-grid power solution for whole-home independence.

Key Features

15kW high-capacity off-grid inverter with 15kWh LiFePO4 battery

Dual charging: solar and utility AC input supported

Powers entire homes, appliances, and multi-room systems

Smart EMS and BMS for real-time monitoring and layered protection

Modular battery expansion available up to 30kWh

All-in-one cabinet design with LCD screen and wheels for indoor installation