Polinovel STK Series lithium home battery is built with lithium iron phosphate technology and features 15 layers of protection, making it a secure option for the home solar system.
This LiFePO4 residential battery can be expanded with additional battery modules at any time. There is no wiring or DIP setting required. Using it, you can greatly improve energy independence.
Having high-current BMS built in, it can safely run a 10KW inverter and handle heavier loads.
Technical Parameters
| Model | STK10 | STK15 | STK20 | STK25 |
| Nominal Voltage | 51.2V | 51.2V | 51.2V | 51.2V |
| Nominal Capacity | 200Ah | 300Ah | 400Ah | 500Ah |
| Energy | 10.24kWh | 15.36kWh | 20.48kWh | 25.6kWh |
| Charge Cut-off Voltage | 58.4V | 58.4V | 58.4V | 58.4V |
| Discharge Cut-off Voltage | 40V | 40V | 40V | 40V |
| Standard Charge Current | 100A | 150A | 200A | 250A |
| Max. Charge Current | 200A | 300A | 400A | 500A |
| Max. Constant Discharge Current | 200A | 300A | 400A | 500A |
| Peak Discharge Current | 300A | 400A | 500A | 600A |
| Communication | RS485/CAN | RS485/CAN | RS485/CAN | RS485/CAN |
| Dimension | 585*360*458 mm (23*14.2*18 in) | 585*360*608 mm (23*14.2*23.9 in) | 585*360*758 mm (23*14.2*29.8 in) | 585*360*908 mm (23*14.2*35.7 in) |
| Weight | 92 kg (202.8 lbs) | 138 kg (304.2 lbs) | 184 kg (405.7 lbs) | 230 kg (507.1 lbs) |
| Charge Temperature | 0~50 °C | 0~50 °C | 0~50 °C | 0~50 °C |
| Discharge Temperature | -15~ 60°C | -15~ 60°C | -15~ 60°C | -15~ 60°C |
1010 Longnian Bld, 29 Longcheng Ave, Nanlian Area, Longgang St, Longgang Dist, Shenzhen, China 518116
+86 755-28906569
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