HA Series wall-mounted LiFePO4 battery, 2.56–10.24 kWh

Where the HA fits

The HA is the module to specify when there is a wall and no floor. At 139 mm deep on the 2.56 kWh unit and 230 mm on the largest, it hangs above a generator, a water heater or a stack of moving boxes — the three things that usually occupy a residential plant room.

Two voltages are offered because the market is split. Most new hybrid inverters are 48 V and take the 51.2 V modules; a large installed base of 24 V off-grid inverters, telecom rectifiers and small UPS units still runs on 25.6 V. Carrying both in one series means a distributor can cover both without a second product family.

Sizing the bank

A single module suits a load-shedding or backup application: lights, router, fridge and a few sockets. For daily solar cycling, size on usable energy, not nameplate — plan 80–90 % depth of discharge and leave headroom for cold mornings. Two 51.2 V 200 Ah modules give 20.5 kWh nameplate, about 17 kWh usable, which covers a typical three-bedroom house with a heat pump for a night and a cloudy morning.

Installation and protection

The bracket is fixed to a masonry or timber-stud wall with the supplied anchors; the module must be vertical, with 100 mm clearance above for the terminal cover. Keep the DC cable run under three metres where possible, and fit the DC breaker between battery and inverter — the BMS protects cells, not wiring.

The BMS reports cell voltages, temperature and state of charge over Bluetooth and Wi-Fi, and streams the same data to the inverter over CAN or RS485. If a cell drifts, the balancer corrects it at the top of the charge cycle; if the pack runs outside temperature limits, the BMS derates charge current before it disconnects.