11.1V 3S Li-ion Battery Pack 18650 with DC Jack for Arduino and Robotics

Product Description The 11.1V 3S 18650 Li-ion Battery Pack is a high-capacity, ready-to-use power solution specifically designed for robotics and DIY electronics. By combining three high-quality 18650 cells in series, this pack provides a steady 11.1V nominal output, which is the "sweet spot" for many DC motors and microcontrollers. The pack features an integrated 3S Battery Management System (BMS) to ensure cell balancing and safety. For maximum convenience, it is terminated with a standard 5.5mm x 2.1mm DC barrel jack, making it a direct plug-and-play power source for Arduino Uno, Mega, and most motor driver shields.

Key Features

• Plug-and-Play DC Jack: Fits perfectly into the DC power socket of Arduino boards and most common 12V electronics.

• Integrated 3S BMS: Built-in protection against over-charging, over-discharging, and short circuits for a longer cycle life.

• High Energy Density: Offers a significantly better weight-to-power ratio than Lead-Acid or Ni-MH battery packs.

• Durable Outer Wrap: Protected by industrial-grade blue heat-shrink tubing to keep cells secured and insulated.

• Stable 12V Alternative: Provides a lightweight alternative to 12V Lead-Acid batteries for mobile robot chassis.

Technical Details

• Nominal Capacity: Varies by cell batch (typically 2000mAh to 2600mAh)

• Max Discharge Current: 2C to 3C (Internal BMS dependent)

• Charging Voltage: 12.6V DC

• Dimensions: Approx. 55mm x 68mm x 18mm (Standard 3S side-by-side or triangular)

• Operating Temperature: -20°C to +60°C

• Weight: Approx. 140g to 155g