DFRobot
3 x 18650 Battery Holder with DC2.1 Power Jack
A robust battery holder designed to house three 18650 lithium-ion cells in series, delivering a nominal 11.1V output through a standard DC 2.1mm power jack. ...
A robust battery holder designed to house three 18650 lithium-ion cells in series, delivering a nominal 11.1V output through a standard DC 2.1mm power jack. Ideal for powering projects, robots, and portable electronics that require higher voltage from rechargeable cells.
The holder features a durable ABS shell with nickel-plated stainless steel spring contacts for reliable electrical connections. The integrated DC barrel jack (5.5mm outer / 2.1mm inner) makes it easy to plug into compatible development boards and devices.
Key Features
- 3× 18650 Series Configuration – Provides nominal 11.1V output (3.7V per cell)
- DC 2.1mm Power Jack – Standard 5.5mm outer / 2.1mm inner barrel connector for broad compatibility
- Durable ABS Construction – Lightweight yet sturdy enclosure
- Nickel-Plated Spring Contacts – Stainless steel springs ensure reliable, low-resistance connections
- RoHS Compliant – Meets environmental safety standards
Specifications
- Battery Type – 3× 18650 (not included)
- Output Voltage – 11.1V nominal (series configuration)
- Connector – DC barrel jack, 5.5mm outer / 2.1mm inner
- Material – ABS shell, nickel-plated stainless steel springs
- Dimensions – 78.24 × 59.46 × 21.41mm
- Weight – 30g (without batteries)
Ideal For
- Robotics and portable electronics projects
- Powering Arduino, Raspberry Pi, and other development boards via DC jack
- Field-deployable sensor systems and data loggers
- Any application requiring a rechargeable 11.1V power source
Package Contents
- 1× 3-Cell 18650 Battery Holder with DC 2.1mm Jack
Jargon buster
Plain-language definitions for the technical terms used above.
- DC barrel jack
- A round power connector commonly used for low-voltage DC power supplies, often described by its outer and inner diameters such as 5.5 x 2.1 mm. Matching the barrel size and polarity is important so the plug physically fits and powers the device correctly.
Find this product in
Power & Batteries
Supplier page — dfrobot.com
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