Fronus 5.12kWh Lithium-ion Battery 51.2V (TP-LD55)
Rs 215,000
Rs 59,989 per usable kWh
Price updated: 24 August 2026
Full specifications
| Brand | Fronus |
| Model | TP-LD55 |
| Electrical Specifications | |
| Battery type | Lithium |
| Battery chemistry | LiFePO4 |
| Capacity | 102 Ah |
| Cycle life | 8000 |
| Usable capacity | 70% |
| Nominal energy | 5.12 kWh |
| Nominal voltage | 51.2 V |
| Operating voltage range | 42.4-57.6 V |
| Max. parallel batteries | 16 |
| Continuous charging current | 100 A |
| Continuous discharging current | 135 A |
| Peak discharging current | 200 A (10 s, up to 35°C) |
| Depth of discharge | 70% |
| General Specifications | |
| Temperature range | Charge 0°C ~ +55°C / Discharge -20°C ~ +55°C |
| IP class | IP40 |
| Communication port | CAN / RS485 |
| Dimensions (W×H×D) | 335 × 626 × 169 mm |
| Weight | 42 kg |
Note: The highest cycle count in the Fronus range at >8000 - but measured at 70% depth of discharge, where the TP-LD51 quotes 6000 at 90%. On energy actually delivered over the life of the pack those two land within a few per cent of each other, so the bigger number is not the better battery; it is the shallower test. Rated capacity is given as a range, 102 to 106 Ah, rather than a single figure - the lower bound is recorded here. 135 A discharge with a 200 A peak, though the peak is only rated up to 35°C rather than the LD51's 45°C. 1P16S pack with a 3.5-inch LCD touchscreen, status light and SOC indicators, CAN and RS485, and wall, floor or rack mounting. Charge 0-55°C, discharge -20-55°C. Certified to IEC 62477, 62619, 60730, 63056, 61000 and UN38.3, with a 5-year warranty. Fronus note compatibility with the SolaX LD51 battery and with IP21 and IP65 inverters.