What is TommaTech Hightech Power BoosterPack 5.8 kWh Lithium Battery?
TommaTech Hightech Power BoosterPack 5.8 kWh Lithium Battery is the capacity-boosting module of the Hightech Power 5.8 kWh series. The series has built-in BMS technology and, by combining General Pack and Booster Pack batteries and connecting up to 4 in series, can provide up to 23 kWh of storage in total. Offering 90% depth of discharge, this series is used with TommaTech Uno and Trio hybrid inverters.
Key technical specifications
- Total / usable capacity: 5.8 kWh / 5.2 kWh
- Standard power: 2.9 kW
- Faradaic charging efficiency 99%, round-trip efficiency 95%
- Protection class: IP65; communication: RS485
- Dimensions: 474 × 193 × 708 mm; weight 72.2 kg
- Humidity tolerance: 4-100% (condensing)
- Operating voltage: 100-13 V (see datasheet); short-circuit current 1440 A
- Warranty: 10 years; cycle life >6000
- Recommended charge/discharge current: 25 / 35 A
Which projects is it suitable for?
It suits medium and large homes, villas and small commercial businesses, to cover evening consumption with PV production and to provide backup power during an outage. The 5.8 kWh modular structure allows gradual expansion as needed.
For correct sizing, the electricity bill and the list of appliances are reviewed first; then the storage capacity, inverter power and number of parallel connections are determined. If this order is not followed, the battery either falls short or turns into a larger investment than necessary.
Use in Antalya and Solar Nexo support
In Antalya, summer consumption peaks shift to the evening hours; 5.8 kWh modules move the PV surplus into use during this period. Because of the 72.2 kg weight, the load-bearing surface, cable route and ventilation matter during mounting. Solar Nexo determines the General and Booster Pack combination through the survey and commissions it.
Solar Nexo manages the supply, project design, installation and commissioning steps together; our Kepez-based team also provides technical support after installation. The datasheet file can be downloaded from this page.







