Technical Details
| Parameter |
Specification |
| Model |
18500-2S1P |
| Nominal voltage |
7.4V |
| Nominal capacity |
1500mAh |
| Size |
Customized |
| Max charge current |
0.5C |
| Charging method |
Constant current 1C to 8.4V, then charge with constant voltage 8.4V till charge current less than 0.01C |
| Max discharge current |
1C |
| Discharge cut-off voltage |
6V (over-discharge detection voltage of PCM) |
| Operating environment |
Charging: 0°C ~ 45°C, 65±20%RH; Discharging: -20°C~60°C, 65±20%RH |
| Storage environment |
-20°C~45°C, 65±20%RH |
| Lifespan (80% Prime Capacity) |
>500 cycles |
Main Features:
Electrochemical and Performance Indicators;
Cell Material: Ternary NCM, high energy density;
Cycle Life: ≥500 cycles (capacity retention ≥80%);
Charge/Discharge Performance: Standard charging current 0.5C (750mA), discharge current supports 1-2C (continuous discharge).
Main Advantages:
Strong Voltage Adaptability: 7.4V is the commonly used nominal voltage for small portable devices, eliminating the need for additional boost/buck circuits. It can directly match the power requirements of devices, simplifying device design and reducing costs.
18500 Cell 1500mAh Capacity: Meets the battery life requirements of small devices without resulting in excessive size/weight, suitable for scenarios requiring both portability and battery life.
Energy Density and Battery Life: Lithium-ion batteries boast significantly higher energy density than nickel-metal hydride (Ni-MH) and nickel-cadmium (Ni-Cd) batteries, resulting in longer battery life within the same volume.
Long Cycle Life and Low Operating Costs: A cycle life of 500+ cycles can meet the needs of devices for 2-3 years, eliminating the need for frequent battery replacements. No memory effect, supports charging whenever needed, and offers high convenience.
Safety and Reliability: Built-in protection board effectively prevents overcharging, over-discharging, overcurrent, and short-circuit risks; cylindrical steel/aluminum shell encapsulation provides excellent thermal stability and compression resistance.
Applications:
Portable lighting equipment: high-intensity flashlights, mini headlamps, emergency lights, etc.
Small consumer electronics: mini Bluetooth speakers, handheld gimbals (entry-level), portable voice recorders, laser pointers, etc.
Electric toys and models: remote control cars, model airplanes (servo motors/receiver power supplies), electric building blocks, robot toys, etc.
Handheld instruments: handheld thermometers, portable gas detectors, laser rangefinders, portable multimeters, etc.
Small medical and health equipment: handheld blood pressure monitors, mini physiotherapy devices, portable pulse oximeters, etc.; no memory effect and low self-discharge rate, suitable for long-term backup and on-demand charging.
Smart home and security equipment: backup power for smart door locks, small surveillance cameras (wireless portable models), door and window sensors (high-power models), etc.
