HH Series — single-phase energy storage system 3.6–10 kW with H-PACK 5.12 kWh batteries

KSTAR HH Series — single-phase energy storage system 3.6–10 kW with H-PACK 5.12 kWh batteries

Supplied as an official KSTAR partner

Manufacturer: KSTAR · China · Model: HH3.6KS / HH6KS / HH10KS + H-PACK-5.1

A single-phase home energy storage system built on a 3.6 / 6 / 10 kW hybrid inverter and low-voltage LFP H-PACK batteries of 5.12 kWh each. It is meant for private houses with a single-phase supply that need backup during outages and their own solar plant.

Inverters: HH3.6KS, HH6KS, HH10KS — 3.6 / 6 / 10 kW
PV: up to 6 / 9 / 18 kW, up to 500 V DC
Battery: H-PACK-5.1, LFP, 5.12 kWh
Ingress protection: IP20 (inverter), IP21 (battery)

Request a quote All specifications

Technical specifications

Inverters	HH3.6KS, HH6KS, HH10KS — 3.6 / 6 / 10 kW
PV	up to 6 / 9 / 18 kW, up to 500 V DC
Battery	H-PACK-5.1, LFP, 5.12 kWh
Ingress protection	IP20 (inverter), IP21 (battery)

Specifications are taken from the manufacturer’s technical documentation. Updated 11/06/2026.

Description

The system includes the HH3.6KS, HH6KS and HH10KS inverters rated 3.6 / 6 / 10 kW. The PV input of each accepts up to 6 / 9 / 18 kW respectively at up to 500 V DC, so the panel array can be sized with a margin over the inverter rating. Storage is the low-voltage H-PACK-5.1 battery on lithium iron phosphate (LFP) cells with a capacity of 5.12 kWh. A single hybrid inverter manages battery charging, converts the DC from the panels and feeds AC into the house network. The inverter is rated IP20 and the battery IP21, so both units go indoors, for example in a boiler room, a garage or a utility room.

How to choose

Start with the inverter power. The HH3.6KS suits a small house with a moderate load, while the HH10KS is chosen when several heavy consumers run at once and the PV array is large. Capacity grows by adding H-PACK batteries of 5.12 kWh each. If the units must stand outdoors, look at the BlueSpark E3.68–6KS-D22 with an IP66 inverter, an IP65 battery and up to 4 batteries per system. For a three-phase supply there is the BlueSpark E4–12KT-D22 with support for up to 8 batteries.