Infiniteboat - Battery

Battery (model 3S7P-260) – manufactured by Dongguan Xinyi Electronics Co., Ltd.

Configuration: 3S7P (3 cells in series, 7 in parallel), 18650 cells.

Main specs:

• Nominal voltage: 11.1 V
• Max charge voltage: 12.6 V
• Capacity: 18,200 mAh (typical)
• Charging method: CC/CV (constant current / constant voltage)
• Max charge current: 5.0 A
• Max discharge current: 15 A

Built-in BMS board (cell monitoring, balancing and protection):

• Overcharge protection: 4.225 – 4.275 V per cell
• Over-discharge protection: 2.62 – 2.78 V
• Overcurrent protection: 17 – 20 A
• Cell balancing & control

BMS components:

• IC: S8254AAV
• MOSFET: TPCA8131 (x4)

Charging note:
The battery can be charged with an intelligent charger (e.g. iMAX) when set to Li-ion 3S mode with an end voltage of 12.6 V.
If the charger is set to LiPo mode or uses a different algorithm, the BMS may interrupt charging, which can look like the battery “won’t charge”.

If you want, I can help with exact iMAX settings or recommend a fully compatible charger type.