The 3 Cell 18650 Battery Holder is a durable and convenient enclosure designed to securely hold three 18650 lithium-ion cells. It provides an easy way to assemble custom battery packs for robotics, DIY electronics, power banks, and portable energy systems. The holder can be wired in series or parallel to meet your specific voltage and capacity requirements, delivering stable and efficient power output for a wide range of projects.
Technical Specifications
Core Specifications
Compatible battery type: 18650 lithium-ion cells (unprotected or protected)
Cell size supported: Standard 18 mm × 65 mm cylindrical cells
Configuration: Series or parallel depending on user wiring (not internally connected)
Output voltage: Depends on configuration and cells used (e.g., 11.1 V nominal for 3S)
Maximum current: Determined by the discharge rating of the cells
Electrical & Physical
High-quality ABS plastic construction with nickel-plated spring contacts
Clearly marked positive and negative terminals for correct polarity
Pre-soldered wire leads for easy connection to circuits
Pre-drilled mounting holes for secure installation
Dimensions approximately 77 mm × 58 mm × 19 mm
Environmental
Operating temperature range: –20 °C to +60 °C
Suitable for indoor and portable battery applications
Why Choose the 3 Cell 18650 Holder
Securely holds three 18650 cells for dependable power delivery
Supports both series and parallel wiring for flexible voltage or capacity
Perfect for DIY power banks, robotics, and high-capacity battery packs
Critical Uses
Custom lithium-ion battery packs for portable electronics
Arduino and Raspberry Pi power supply solutions
Solar energy storage and emergency backup systems
Robotics and motorized gadgets requiring higher voltage or capacity
Pro Tips
Always use identical cells with the same capacity and charge level
Include a proper Battery Management System (BMS) for safety in rechargeable setups
Double-check polarity before wiring to prevent circuit damage
Package Includes
1 × 3 Cell 18650 Battery Holder