Key Features

• High-capacity 4000mAh lithium-ion cell
• Stable 10A continuous discharge output
• Consistent voltage delivery across discharge range
• Standard 18650 flat top form factor
• Designed for long cycle life and reliability

Overview

The Efest 18650 4000mAh 10A battery is a high-capacity lithium-ion cell engineered for applications that prioritize extended runtime and steady current delivery. With a 4000mAh nominal capacity and a 10A continuous discharge rating, this cell provides reliable energy output while maintaining efficiency and thermal stability across repeated charge cycles.

Applications / Uses

• Rechargeable lighting systems
• Portable electronic equipment
• Battery pack assemblies
• Low to mid-power energy storage solutions
• Utility and backup power devices

SPECIFICATIONS

Manufacturer	Efest
Model	18650 4000mAh 10A
Size	18650
Positive Terminal	Flat Top
Nominal Capacity	4000mAh
Continuous Discharge Rating	10A
Nominal Voltage	3.7V
Maximum Voltage	4.2V
Protected	No
Rechargeable	Yes
Cycle Life	300+ cycles
Approx. Dimensions	18.3mm × 65.0mm
Approx. Weight	48g