- Designed for the long-duration underwater operation of robotic pool cleaners, providing extended runtime, stable power output, and reliable safety protection to support continuous cleaning in demanding underwater environments.
Product Specifications & Configuration
Battery Model: FY001B-RBA
Cell Type / Capacity: INR18650 26E/2600mAh
Battery Configuration: The finished battery pack consists of 21 cells in a 7S3P configuration and a protection control circuit (PCM).
Basic Performance
| No. | Item | Parameter | Remarks | |
| 1 | Capacity | Typ.7800mAh | ||
| Min.7500mAh | ||||
| 2 | Nominal Voltage | 25.55V | ||
| 3 | Charge Limit Voltage | 29.4V | ||
| 4 | Maximum Charging Voltage | 29.45 V | ||
| 5 | Discharge Cut-off Voltage | 19.25V | ||
| 6 | Charging Method | CC-CV | ||
| 7 | Charging Current | 1560mA | (0.2C) | |
| 3900mA | (0.5C) | |||
| 8 | Discharge Current | 3900 mA | (0.5 C) | |
| 9 | Maximum Discharge Current | 15000mA | ||
| 10 | Storage Temperature | Less than 1 Month | -20°C ~ +55°C | |
| Less than 3 Months | -20°C ~ +45°C | |||
| Less than 1 Year | -20℃~+25℃ | |||
| 11 | Storage Requirement | Recharge the battery every 4 months during storage. | ||
| 12 | Relative Humidity | 65±10% | ||
| 13 | Battery Internal Resistance | ≤120mΩ | Measure the battery AC internal resistance at 1 kHz after standard charging. | |
| 14 | Battery Weight | 1800g | About | |
| 15 | Battery Dimensions | Length | 218.20±0.5mm | |
| Width | 103.20±0.4mm | |||
| Thickness | 76.00±0.3mm | |||