Lithion Battery GridBox

Name: Lithion Battery GridBox
Brand: Lithion Battery

552–1,104 kWh · 500–1,000 kW · Lithium Iron Phosphate · 2 configurations

UL 9540CEC listed · Sep 1, 2023

Overview

CEC Energy Storage System List

GridBox: 552–1,104 kWh nameplate energy; 500–1,000 kW continuous; lithium iron phosphate.

CEC Energy Storage System List · 2 listings

Model	Energy	Power	Grid voltage	Round trip	CEC listed
20GB-0500-0552-0000	552 kWh	500 kW	480 V	88%	Sep 1, 2023
20GB-1000-1104-0000	1,104 kWh	1,000 kW	400 V	88%	Feb 21, 2024

CEC Energy Storage System List

CEC Energy Storage System List

UL 9540 certifies the whole storage system; UL 9540A is the fire-propagation test that fire codes ask for indoors and near walls.

CEC Energy Storage System List

How much energy does the Lithion Battery GridBox store?

552–1,104 kWh nameplate, per the California Energy Commission list.

Is the GridBox UL 9540 certified?

Yes — the CEC list shows UL 9540 certification (certified by tuv rheinland).

California Energy Commission — Energy Storage System List, data as of Oct 7, 2026. Manufacturer-reported values confirmed by CEC against certificates.