| Battery Chemistry | NCM (Li-ion) |
| Nominal Voltage | 3.7V |
| Rated Capacity | 8800mAh |
| Rated Energy | 32.56Wh |
| Cycle Life | ≥300 cycles (to 80% capacity) |
| Max. Charge Current | 3A |
| Max. Continuous Discharge Current | 3A |
| Battery Dimension | 74 × 19 × 65.2 mm |
| Approx. Weight | 180g |
This is a li-ion 3.7V 8800mAh NCM 18650 battery pack designed for portable devices. It is a high-capacity 32.56Wh battery solution built from four premium 3.6V 2200mAh NCM 18650 cells in a 1S4P configuration. Delivering 8800mAh of reliable runtime in a compact PVC-wrapped enclosure, this pack is engineered for handheld instruments, medical devices, portable speakers, and custom OEM electronics that demand extended battery life.
The integrated protection circuit safeguards against over-charge, over-discharge, over-current, and short circuit, keeping your device and users safe. It supports up to 3A continuous discharge, handled by UL1007 22AWG red and black leads terminated with a PH-2P reverse plug for secure, plug-and-play installation. A 10A resettable fuse provides an extra layer of over-current protection.
Charging follows a CC/CV profile at 4.2V with a standard charge current of 1.5A and a maximum of 3A. The PCB cuts off discharge at 2.50V to prevent deep discharge. With a cycle life of 300 cycles to 80% capacity and an operating range of 0°C to 45°C on charge and -20°C to 60°C on discharge, the 8800mAh pack delivers dependable power across demanding environments. At just 180 grams, it offers strong energy density in a compact form factor.
| Electrical Characteristics | Nominal Voltage | 3.7V |
| Typical Capacity | 8800mAh @ 0.2C discharge | |
| Minimum Capacity | 8600mAh @ 0.2C discharge | |
| Rated Energy | 32.56Wh | |
| AC Internal Resistance | ≤100mΩ (pack) | |
| Protection Circuit | PCM: S-8261DAZ-M6T1U IC + dual PT8205 MOSFET + 10A fuse | |
| Cycle Life | ≥300 cycles (1C charge / 3C discharge, to 80%) | |
| Standard Charge | Charge Voltage | 4.20V ± 0.05V |
| Charge Mode | CC/CV | |
| Standard Charge Current | 1500mA | |
| Max. Charge Current | 3A | |
| Standard Discharge | Standard Discharge Current | 1760mA |
| Max. Continuous Current | 3A | |
| Discharge Cut-off Voltage (PCB) | 2.50V ± 0.05V | |
| Mechanical | Cell Type | 18650 NCM cylindrical cells, 1S4P (4 × 2200mAh) |
| Cell Dimension | 18.5 × 65.2 mm max (per cell) | |
| Enclosure | PVC heat shrink (blue) | |
| Weight | Approx. 180g (pack); 43g per cell | |
| Connector | PH-2P reverse plug, UL1007 22AWG (BK/RD leads) | |
| Environmental | Charge Temperature | 0°C – 45°C |
| Discharge Temperature | -20°C – 60°C | |
| Storage Temperature | -5°C – 35°C | |
| Storage Humidity | ≤75% RH |
