Felicity Megafelicity Ess RxxKLNA-US

Name: Felicity Megafelicity Ess RxxKLNA-US
Brand: Felicity

39.8 kWh · Lithium Iron Phosphate · direct PV input · 4 configurations

UL 9540UL 1741 SBCEC listed · May 1, 2025

Overview

CEC Energy Storage System List

Megafelicity Ess RxxKLNA-US: 39.8 kWh nameplate energy; lithium iron phosphate; accepts solar panels directly (DC-coupled).

CEC Energy Storage System List · 4 listings

Model	Energy	Power	Grid voltage	Round trip	CEC listed
Megafelicity Ess R5KLNA-US {39.84kWh, 240V}	39.8 kWh	5 kW	240 V	—	May 1, 2025
Megafelicity Ess R6KLNA-US {39.84kWh, 240V}	39.8 kWh	6 kW	240 V	—	May 1, 2025
Megafelicity Ess R8KLNA-US {39.84kWh, 240V}	39.8 kWh	8 kW	240 V	—	May 1, 2025
Megafelicity Ess R10KLNA-US {39.84kWh, 240V}	39.8 kWh	10 kW	240 V	—	May 1, 2025

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 Felicity Megafelicity Ess RxxKLNA-US store?

39.8 kWh nameplate, per the California Energy Commission list.

Is the Megafelicity Ess RxxKLNA-US UL 9540 certified?

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

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