3.7V Lithium Ion Battery - 2200mAH

Specifications

1. Nominal Voltage: 3.7V
2. Capacity: 2200mAh (milliampere-hour)
3. Type: Lithium-Ion
4. Rechargeable: Yes
5. Charging Voltage: 4.2V (maximum charging voltage).
6. Discharge Cutoff Voltage: Around 2.5V-3.0V.
7. Form Factor: Commonly cylindrical (e.g., 18650 cell) or pouch type.
8. Weight: Moderate, depending on form factor.

Features

• High Energy Density: Provides a good balance of size and capacity.
• Rechargeable: Long lifecycle with up to 300–500 charge cycles.
• Low Self-Discharge: Retains charge well when not in use.
• Compact Size: Fits a wide range of devices.

Applications

• Consumer Electronics: LED flashlights, Bluetooth speakers, power banks.
• DIY Projects: Arduino boards, Raspberry Pi setups, small robotics.
• Portable Devices: E-cigarettes, wireless headphones, handheld tools.
• Emergency Lights: Rechargeable lanterns, backup light sources.

Charging Guidelines

1. Use the Correct Charger: A Li-ion charger with constant current/constant voltage (CC/CV) mode.
2. Avoid Overcharging: Disconnect once the battery reaches 4.2V.
3. Charge Current: Typically around 0.5C (1.1A) to 1C (2.2A) for safety and longevity.

Safety Tips

• Avoid Short Circuits: Ensure proper insulation and polarity during use.
• Protect from Physical Damage: Do not puncture or expose to high temperatures.
• Battery Protection Circuit: Use a BMS (Battery Management System) to prevent overcharge, over-discharge, and overheating.
• Storage: Store in a cool, dry place at 40%-60% charge level for longevity.