TommaTech Hightech Power 5.8 Series HV LFP Battery System
The TommaTech Hightech Power 5.8 Series is a scalable high-voltage LiFePO₄ energy storage platform designed around two module types: a General Pack containing the system's primary BMS functionality and a Booster Pack used to increase storage capacity.
The base General Pack provides 5.8 kWh total energy and 5.2 kWh usable energy. Additional Booster Packs are connected to create 11.5, 17.3 and 23.0 kWh configurations. Since the architecture remains the same across all four capacities, these configurations should be presented as one configurable battery family rather than four separate products.
System nominal voltage increases from 115.2 V at 5.8 kWh to 460.8 V at 23.0 kWh. This series architecture means that selecting the appropriate storage capacity also determines the system's voltage range and therefore influences compatible inverter selection.
The official datasheet specifies Li-Ion LFP chemistry, 95% battery round-trip efficiency, more than 6,000 cycles, IP65 enclosure protection and a 10-year stated warranty. Communication between the battery system and inverter is handled through CAN2.0, while RS485 is used for battery-to-battery / BMS communication.
The manufacturer provides a dedicated inverter compatibility matrix. For example, the 5.8 kWh General Pack is intended for selected Uno-Hybrid systems but is marked unsuitable for the reviewed Trio-Hybrid configuration, while the larger configurations support different Uno and Trio arrangements. Consequently, final capacity selection should always be carried out together with inverter selection.
Main Advantages
- LiFePO₄ architecture
- One General Pack plus up to three Booster Packs
- 5.8–23.0 kWh total storage
- 5.2–20.7 kWh usable energy
- 95% stated battery round-trip efficiency
- 99% stated faradaic charge efficiency
- IP65 protection
- CAN2.0 inverter communication
- RS485 battery/BMS communication
6,000-cycle specification
- 10-year stated warranty
- Modular capacity expansion within the defined system architecture
Configuration / Model Comparison
| Configuration | Pack Arrangement | Nominal Voltage | Operating Voltage | Total Energy | Usable Energy | Standard / Max Power |
|---|---|---|---|---|---|---|
| 5.8 kWh | General Pack | 115.2 V | 100–131 V | 5.8 kWh | 5.2 kWh | 2.9 / 3.5 kW |
| 11.5 kWh | General + 1 Booster | 230.4 V | 200–262 V | 11.5 kWh | 10.4 kWh | 5.8 / 7.0 kW |
| 17.3 kWh | General + 2 Booster | 345.6 V | 300–393 V | 17.3 kWh | 15.6 kWh | 8.7 / 10.5 kW |
| 23.0 kWh | General + 3 Booster | 460.8 V | 400–524 V | 23.0 kWh | 20.7 kWh | 11.6 / 14.0 kW |
Technical Architecture
The system follows a master + expansion module concept:
General Pack = Master battery/BMS unit
Booster Pack = Slave/expansion battery unit
The General Pack is therefore required as the base battery. Booster Packs are not alternative standalone products for normal publication purposes; they are expansion components used to create larger system configurations. This architecture is also explicitly reflected in the applicable LVD and EMC certificates, which identify General Pack as Master and Booster Pack as Slave.
Compatibility
| Configuration | Uno-Hybrid | Trio-Hybrid |
|---|---|---|
| 5.8 kWh | General Pack | Not suitable |
| 11.5 kWh | General + Booster | General + Booster |
| 17.3 kWh | General + 2 Booster | General + 2 Booster |
| 23.0 kWh | Not suitable | General + 3 Booster |
Official datasheet references Uno-Hybrid 3.0T / 3.7T / 4.6T / 5.0T and Trio-Hybrid 5.0T / 6.0T / 8.0T / 10.0T.
How It Works
The General Pack acts as the primary managed battery unit. Where additional energy capacity is required, Booster Packs are connected according to the approved configuration.
Adding Booster Packs increases both storage capacity and system voltage. The BMS and inverter therefore operate the connected packs as one coordinated high-voltage battery system rather than as independent batteries.
Intended Applications
- Residential photovoltaic energy storage
- Hybrid solar systems
- Solar self-consumption
- Backup-energy storage using compatible hybrid inverter architectures
Engineering and Selection Notes
Before quotation determine:
- Required usable kWh
- Uno-Hybrid or Trio-Hybrid inverter
- Required system voltage range
- Backup runtime
- Maximum load
- Charge/discharge power
- PV production
- Daily cycling expectations
- Installation temperature
- Installation area and mounting position
Information Required Before Quotation
- Required total/usable capacity
- Inverter model
- Backup load and duration
- PV system size
- Grid configuration
- Ambient temperature
- Installation environment
- Project country
- Certification requirements
- Delivery destination
Recommended Call to Action
Send the required usable storage capacity, inverter model and backup load profile so that the correct General Pack / Booster Pack configuration can be selected.
