These lithium-ion batteries come in a variety of configurations and capacities. The battery with a protection circuit provides over-voltage, under-voltage, and over-current protection. Yet, it is slim and easy to fit into many project cases.
The included protection circuitry keeps the battery voltage from going too high (over-charging) or low (over-use) which means that the battery will cut out when completely dead at 2.5V. However, even with this protection, it is very important that you only use a LiIon/LiPoly constant-voltage/constant-current charger to recharge them and at a rate of 0.5C (1 Amp) or less.
Additional safety notes: Do not use a NiMH/NiCad/lead-acid charger! Also, do not abuse these batteries, do not short, bend, crush, or puncture. Never charge or use unattended. Always inspect batteries and surrounding circuitry constantly for any damage, loose wiring, or the possibility of short circuits. As with all Lithium-ion polymer batteries and with any power source - they should be used by experts who are comfortable working with power supplies
Specifications
- Dimensions:
- Button Top: 69.5mm Long X 18.4mm Diameter
- Wired: 66.5mm Long X 21mm Wide on one end X 18.6mm diameter
- 2600 mAh with Protection
- Nominal Capacity: 2600 mAh
- Minimum Capacity: 2500 mAh
- Nominal Voltage: 3.7V
- Charge Voltage: 4.2V
- Discharge Cut-Off Voltage: 2.5V
- Continuous Discharge Current (max.): 5A
- Operating Temperature: 0℃ - 45℃
- Internal Resistance ≤ 40mΩ @ 1kHz AC
- 1800 mAh with Protection
- Nominal Capacity: 1800 mAh
- Minimum Capacity: 1750 mAh
- Nominal Voltage: 3.7V
- Charge Voltage: 4.2V
- Discharge Cut-Off Voltage: 2.5V
- Maximum Discharge Current: 2.5A
- Operating Temperature: 0℃ - 45℃
- Internal Resistance ≤ 30mΩ @ 1kHz AC
- 1500 mAh with Protection
- Nominal Capacity: 1500 mAh
- Minimum Capacity: 1450 mAh
- Nominal Voltage: 3.7V
- Charge Voltage: 4.2V
- Discharge Cut-Off Voltage: 2.5V
- Maximum Discharge Current: 2.5A
- Operating Temperature: 0℃ - 45℃
- Internal Resistance ≤ 20mΩ @ 1kHz AC