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LiFePO4 Solar Battery Storage

One line: Two LiFePO4 battery pack sizes — 5.12 kWh and 16 kWh at 51.2 V — with BMS communication that supports a wide range of third-party hybrid inverters.
Wall-mounted LiFePO4 battery pack shown from the front, with the connection panel carrying the main switch, battery terminals, LCD and RS485 ports
H4B-N5-48V - 5.12 kWh wall-mounted LiFePO4 pack. Connection panel: main switch, B+ / B- terminals, LCD and dual RS485.

Battery packs

H4B-N5-48VH3B-W16-48V
Nominal voltage51.2 V51.2 V
Nominal capacity100 Ah314 Ah
Total energy5.12 kWh16 kWh
Working voltage44–58.4 V44–58.4 V
Standard charge/discharge0.2C0.5C
Max charge/discharge current100 A200 A
CommunicationRS485 / CANRS485 / CAN
Parallel communicationDual RS485Dual RS485
Cycle life≥6000≥6000
Charge temperature0–55 °C0–55 °C
Discharge temperature−20–55 °C−20–55 °C
Dimensions325 × 535 × 180 mm453 × 321 × 772 mm
Net weight42.6 kg120 kg

Why LiFePO4

Lithium iron phosphate is the chemistry used across this range, and the reasons are specific rather than marketing language:

BMS and inverter compatibility

Each pack carries an internal BMS that monitors cell voltage and temperature and protects against overcharge, over-discharge and over-temperature. The BMS also raises usable capacity by keeping cells balanced and preventing premature shutdown.

Communication is over RS485 or CAN, with support for protocols including Growatt, Pylontech, Deye, SRNE, Voltronic, Sofar and others. When the BMS talks to a hybrid inverter, the inverter follows the battery's charge and discharge parameters automatically. Where protocol matching fails, the inverter can instead be configured with manual charge/discharge voltages — the parameter lists are in the installation guide.

Check compatibility before ordering. Protocol support varies by inverter model and firmware. Give us your inverter model and we will confirm whether direct communication is supported or whether manual voltage settings are needed.

The H4B-N5-48V in detail

A 5.12 kWh pack suited to a single hybrid inverter in a home system.

Floor-standing LiFePO4 battery pack shown from the front, with a status display panel and a floor-mount base
H3B-W16-48V - 16 kWh floor-standing LiFePO4 pack with front status display.

The H3B-W16-48V in detail

A 16 kWh pack for systems needing longer autonomy or higher sustained current.

Battery sizing basics

Battery capacity follows from daily energy use, not from the inverter rating. The calculation:

Usable capacity (kWh) = daily consumption (kWh) × days of autonomy ÷ depth of discharge

For a home using 6 kWh per day with one day of autonomy at 80% depth of discharge, that is 6 × 1 ÷ 0.8 = 7.5 kWh — so either two H4B-N5-48V packs in parallel or one H3B-W16-48V with headroom.

Two rules that catch people out:

More on voltage matching is in the sizing guide; charge-current settings are in the installation guide.

Certification and shipping note

The battery packs currently hold no certification files, and no UN38.3 test report is held. UN38.3 is mandatory for shipping lithium cells by air or sea, so transport for these units is currently restricted. We will confirm the position at quotation rather than assume.

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