What is TommaTech 51.2 V 100 Ah PB Series Lithium Battery?
The PB Series is a lithium iron phosphate battery designed for home and small-business storage systems with a 51.2 V system voltage. Multiplying 51.2 V by 100 Ah gives a nominal energy of about 5.12 kWh. It comes with an advanced BMS with an active fuse, which provides protection inside the pack.
Key technical specifications
| Feature | Value |
|---|---|
| Nominal voltage / capacity | 51.2 V / 100 Ah |
| Discharge | Max. 1.2 C (6 kW or 12 kW) |
| Switching element | GaN MOSFET, 50% loss reduction |
| Parallel connection | Up to 32 units |
| Operating temperature | -20 °C to 55 °C, natural cooling |
| Monitoring | Local monitoring mode; remote monitoring for ESS |
Which projects is it suitable for?
It suits home and villa systems built with 48 V class hybrid inverters, country houses, small commercial businesses and backup power applications such as telecom. Capacity can be expanded as needed by connecting several modules in parallel. Inverter compatibility must be verified separately, because compatibility information is not given in the supplier text.
Before installation, the load-bearing capacity of the floor or wall, cable routes and emergency isolation points should be planned. Initial commissioning of battery systems is completed by verifying the communication settings and protection limits together.
Use in Antalya and Solar Nexo support
Because the air-conditioning load continues into the evening throughout summer in Antalya, storing the energy produced during the day makes a clear difference in homes. A naturally cooled design needs a ventilated placement at high ambient temperatures; Solar Nexo places the battery in a dry area away from walls that get hot sun and verifies inverter compatibility before commissioning.
Solar Nexo manages supply, design, installation and commissioning together; our Kepez-based team also provides technical support after installation. The datasheet file can be downloaded from this page.



