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Lithium Ion Cylindrical Battery - 3.7v 2200mAh

Lithium Ion Cylindrical Battery - 3.7v 2200mAh

We have ✅ 2 available of the AF-1781 in our Sydney warehouse. An extra 100 units available with a short lead time.

Express post delivery (2-5 business days)

A 3.7V 2,200 mAh lithium-ion cylindrical battery with built-in protection circuitry for over-voltage, under-voltage, and over-current protection. Slim enough to fit into many project enclosures and includes a JST 2-pin cable with a genuine JST connector for smooth, snag-free connections.

The battery can deliver up to 2C peak current (4,400 mA), though sustained draws should be kept under 0.5C (approximately 1 A). The protection circuit cuts output at 2.5V to prevent over-discharge.

Key Features

  • 2,200 mAh Capacity – Plenty of power for portable projects
  • Built-In Protection – Over-voltage, under-voltage, and over-current circuitry
  • JST 2-Pin Cable Included – Genuine JST connector, rated for 2 A
  • 3.7V Nominal – Standard lithium-ion voltage
  • 2C Peak / 0.5C Sustained – Up to 4,400 mA peak, ~1 A recommended continuous

Specifications

  • Chemistry – Lithium Ion
  • Nominal Voltage – 3.7V
  • Capacity – 2,200 mAh
  • Cut-Off Voltage – 2.5V
  • Recommended Charge Rate – 0.5C (1 A) or less
  • Connector – JST 2-pin (included)
Safety Warning: Only use a LiIon/LiPoly constant-voltage/constant-current charger at 0.5C (1 A) or less. Do not use NiMH, NiCd, or lead-acid chargers. Never short, bend, crush, or puncture the battery. Never charge or use unattended. Always inspect batteries and surrounding circuitry for damage or loose wiring. Polarity matches Adafruit LiPoly/LiIon chargers — other brands may have reversed polarity.

Ideal For

  • Portable electronics and IoT devices
  • Arduino and Raspberry Pi projects
  • Wearable technology
  • Battery-powered sensor nodes

Package Contents

  • 1× Lithium Ion Cylindrical Battery (3.7V, 2,200 mAh)
  • 1× JST 2-Pin Cable

The Lithium Ion Cylindrical Battery - 3.7v 2200mAh appears in the following collections:

SKU AF-1781
by Adafruit