ATHENA B Series — 15.36 / 17.152 kWh Battery Cabinet
A battery-only cabinet for projects where the inverter is already specified. 6000 cycles, 51.2 V nominal, stackable to 6 units, and a documented Modbus register map.
Specifications
| Parameter | ATHENA B 15 | ATHENA B 17 |
|---|---|---|
| Usable capacity | 15.36 kWh | 17.152 kWh |
| Nominal voltage | 51.2 V | 51.2 V |
| Cell chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 6000 cycles @ 90% DoD | 6000 cycles @ 90% DoD |
| Max charge / discharge current | 100 A / 100 A | 100 A / 100 A |
| Stackable | Up to 6 units (92 kWh) | Up to 6 units (103 kWh) |
| Protection class | IP20 indoor / IP65 outdoor variant | IP20 indoor / IP65 outdoor variant |
| Communication | CAN / RS485 Modbus | CAN / RS485 Modbus |
| Certification | CE, IEC 62619, UN38.3 | CE, IEC 62619, UN38.3 |
| Warranty | 10 years / 70% capacity retention | 10 years / 70% capacity retention |
Why a Battery-Only Cabinet
Most residential projects in Europe already have a specified hybrid inverter. Shipping an all-in-one system forces the installer to discard hardware they have already bought or standardised on. ATHENA B is the answer: same BMS, same cabinet, same documentation, no inverter.
Compatible Inverters
The BMS speaks Modbus RTU over RS485 and CAN. We publish the register map and have validated communication with the following platforms: Victron (via CAN), Deye, Growatt, Solis, Sofar, Voltronic, GoodWe. If your inverter is not on the list, send us the protocol document and we will confirm within five business days.
Retrofit Use
ATHENA B is also the standard replacement for ageing lead-acid banks: same 48 V nominal, 1/3 the footprint, 4× the cycle life, and no ventilation requirement. See Battery Retrofit.
Check Inverter Compatibility
Send us the make and model of the inverter you are standardising on. We will confirm BMS compatibility and send the register map.