3 x 18650 Battery Holder with DC2.1 Power Jack

This 3-cell 18650 battery holder provides a portable 11.1V power source for electronics, robotics, and microcontrollers. Fitted with a standard DC 2.1 barrel plug, it is an ideal power solution for makers, students, and hobbyists powering Arduino projects in the field.

Standard 11.1V series output

The battery case connects three 18650 lithium-ion cells in series to provide a nominal 11.1V output. It is wired directly to a DC 2.1 power jack, allowing direct plug-and-play connection to compatible Arduino boards.

Durable ABS enclosure

The housing is moulded from sturdy ABS plastic, offering a firm and resilient structure that keeps cells protected during mobile use.

Nickel-plated spring contacts

Internal battery contacts use nickel-plated stainless steel spring plates to ensure strong electrical conductivity and maintain firm tension on each cell.

Standard DC 2.1 barrel plug

The power output features a standard DC barrel connector with a 5.5mm outer diameter and 2.1mm inner diameter for easy integration into standard development hardware.

Compact and lightweight design

Measuring 78.24mm by 59.46mm by 21.41mm and weighing only 30g, this holder adds minimal bulk to portable and robotics projects.