2 x 18650 Battery Case with DC Barrel


Availability: In Stock


SKU: BTC-040 Category: Tag:


This battery case is a lot like our AA and AAA battery cases – it is just designed to fit the much larger (and incredibly common) 18650 Lithium cells. Best of all, with its center-pin-positive 2.1mm DC Barrel Jack, it will connect directly to boards like the Arduino Uno and Mega. This case allows these cells to be securely mounted into a project with relative ease. This version holds 2 x 18650 batteries wired in series, with a voltage of ~7.4V.

The holder measures 76.3 x 41.1 x 19.9mm and has 100mm (~4”) wire leads terminated with a 2.1 x 5.5mm DC Barrel Jack.

Please Note: 18650 Battery not included.



  • Dimensions: 76.3 x 41.1 x 19.9mm
  • Batteries connected in series
  • Termination: 2.1 x 5.5mm DC Barrel
  • Wire Length: 100mm / ~4″
  • Pack Voltage: 7.4V


  Difficulty Level

Soldering Skill: N/A
Prototyping Skill: Beginner
Programming Skill: N/A

  Product Certifications

  Product Attributes

Weight: 16 g

  Warranty Policy

This product has a 30 Day Warranty from the date of delivery. The item must not be modified, abused, incorrectly hooked up, or used for purposes outside the original scope of design.

  Return Policy

This product is returnable Within 14 Days of delivery for a store credit. Item must be unopened, unused, and in re-saleable condition.

More Information:
For more information on our Warranty and Return Policies, please consult our   Terms of Service


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