7.4 Volt 2200mah Lithium Ion Battery for ngx billing machine

About 7.4 Volt 2200mah Lithium Ion Battery for ngx billing machine

7.4V 2200mAh lithium-ion battery is a 2S (2-cell) rechargeable battery commonly used in small electronics, RC vehicles, LED lighting, robotics, and other DIY or hobbyist applications.

Battery Specifications:

Common Applications:

• RC cars, boats, and helicopters

• Airsoft guns

• Portable fans or lights

• Wireless security cameras

• Arduino / Raspberry Pi projects

• DIY robotics

• GPS trackers, barcode scanners

Typical Physical Features:

• Form Factor: Usually built using 2 18650 cells

• Size (approx.): 70mm 38mm 20mm (varies with case and BMS)

• Weight: ~100g

• Connector: Often comes with:

  • JST

  • DC barrel jack

  • XT60

  • Molex (depending on the device its made for)

Charging and Safety Notes:

• Use a Li-ion charger made for 2S (7.4V) batteries.

• Charge to 8.4V max

• Do not over-discharge below 6.0V

• A Battery Management System (BMS) is strongly recommended for:

  • Overcharge protection

  • Over-discharge protection

  • Short circuit protection

  • Cell balancing