Used 500mAh 3.7V 18650 Lithium-Ion Cell for Robotics

Used 500mAh 3.7V 18650 Lithium-Ion Rechargeable Cell

This is a used 18650 lithium-ion rechargeable battery cell for low-power electronics, learning projects, and battery replacement experiments. It has a nominal voltage of 3.7V and an advertised capacity of 500mAh. The cell is supplied individually without a protection board, holder, charger, or connecting wires.

Key Features

• Standard 18650 cylindrical lithium-ion cell format
• Nominal voltage: 3.7V
• Advertised capacity: 500mAh
• Approximate size: 18mm diameter × 65mm length
• Rechargeable cell for compatible low-power projects
• Suitable for robotics prototypes, small portable projects, and electronics experiments

Specifications

Cell type	18650 lithium-ion rechargeable cell
Condition	Used
Nominal voltage	3.7V
Advertised capacity	500mAh
Dimensions	Approx. 18 × 65 mm
Protection circuit	Not included
SKU	B734, TMD, Th50

Suitable Applications

• Arduino and microcontroller power experiments
• Small robotics and DIY projects
• Portable low-power electronic devices
• Battery-holder based prototypes and educational projects

Package Includes

1 × Used 500mAh 3.7V 18650 Lithium-Ion Cell

Important Safety and Condition Notes

• This is used stock. Cell colour, brand, appearance, actual capacity, and remaining cycle life may vary between units.
• Please test the voltage and capacity before using the cell in a project or battery pack.
• Use only a compatible lithium-ion charger and suitable protection circuit/BMS where required.
• Do not short-circuit, puncture, crush, expose to high heat, disassemble, or charge unattended.
• Not suitable for high-current applications unless independently tested and confirmed for your exact requirement.