Description

"SolaX T-BAT HS25.2" is the seven-module "T-BAT-SYS-HV-S3.6" tower, 25.8 kWh (23.2 kWh usable). This is the point where a home storage turns into a solution for a small farm or workshop: seven modules are meant for a large home with a 15 kW solar plant, two electric cars and electric heating, or for a homestead where a heat pump, a water pumping station and workshop equipment run together in the evening. The tower stands on the floor, enclosure IP65.

When seven modules are worth it

23.2 kWh for the evening and night is enough when daily consumption reaches 40–50 kWh and most of it falls in the dark hours. Compared with the 22.1 kWh variant you get one more module in the same tower without extra equipment; compared with 29.4 kWh, the height still does not exceed 1.21 m, so the tower stands under most boiler-room windows. Under the terms of the planned 2026 APVA call, the compensation is calculated per capacity (170 €/kWh, up to 15 kWh).

Power and voltage

Seven modules operate in the 315–406 V range (358.4 V nominal); rated power 12.5 kW, maximum 17.9 kW. With the 30 A "X3-Hybrid G4" battery port about 10.8 kW is available. For the single-phase "X1-Hybrid G4" (voltage window 80–480 V) both this and one more step – eight modules – are suitable; further expansion is only possible with a three-phase inverter.

Installation

The tower is 510 × 365 × 1,209.5 mm, about 261 kg with the base. The floor must take more than 500 kg/m², leave more than 100 mm at the sides and more than 400 mm in front. Charging is possible from 0 °C, discharging from −20 °C, with the heating function enabled from −30 °C. All modules are installed at the same time – the manufacturer requires their production dates to differ by no more than 3 months.

Compatibility

HS25.2 is listed in the "SolaX" declaration with "X1-Hybrid G3/G4" and "X3-Hybrid G2/G4", and in the battery selection guide with "X3-Ultra" (up to 13 modules per port). Communication with the inverter is CAN 2.0 or RS485, and the battery controller is updated and diagnosed remotely through the inverter. We check the inverter model and firmware before the order.

Safety and warranty

LFP cells, an aerosol fire suppression module, soft start, a 750 V / 60 A fuse, more than 6,000 cycles. The EU warranty is 10 years on the hardware; at least 70% of nominal energy or 11.2 MWh of throughput per module is guaranteed.

Technical specifications

Capacity

25.8 kWh (7 × 3.6 kWh, T-BAT HS25.2)

Usable energy

23.2 kWh (90% DOD)

Power

12.5 kW rated, max. 17.9 kW; about 10.8 kW with a 30 A inverter port

Current

35 A recommended, 50 A max.

Voltage

358.4 V nominal, 315–406 V operating

Charge cycles

> 6,000 (90% DOD, 25 °C)

Operating temperature

Charge 0…+53 °C, discharge −20…+53 °C; with heating −30…+53 °C

Communication

CAN 2.0 / RS485

Protection

IP65; aerosol fire suppression, 750 V / 60 A fuse

Dimensions (W×D×H)

510 × 365 × 1,209.5 mm (one tower)

Weight

about 261 kg (controller 13 kg, base 10.1 kg, 7 × 34 kg)

Mounting

Floor-standing, one tower, no Series Box

Compatibility

SolaX X1-Hybrid G3/G4, X3-Hybrid G2/G4, X3-Ultra

Warranty

10-year EU warranty; ≥ 70% energy or 11.2 MWh per module; screen 2 yr.