Efest 25EF 18650 2500mAh 20A Battery

Key Features

• High-drain INR lithium-ion chemistry for demanding applications
• 20A maximum continuous discharge capability
• 2500mAh nominal capacity for balanced power and runtime
• Flat top design for battery pack integration
• Unprotected cell for use in properly managed systems

Overview

The EFEST 25EF 18650 is a high-performance lithium-ion battery designed for applications requiring sustained high current output. With a 2500mAh capacity and a robust 20A continuous discharge rating, this flat top cell delivers consistent, reliable power in compact energy systems. Its INR chemistry provides excellent thermal stability and cycle performance when used in appropriate configurations.

Applications / Uses

• High-output flashlights and illumination tools
• Custom battery packs and power banks
• Portable electronic equipment
• DIY energy storage projects
• Industrial and technical electronics

SPECIFICATIONS

Manufacturer:	EFest
Battery Size:	18650
Nominal Capacity:	2500mAh
Nominal Voltage:	3.7V
Maximum Voltage:	4.2V
Continuous Discharge Rating:	20A
Positive Terminal:	Flat Top
Protected:	No, Unprotected
Rechargeable:	Yes
Approx. Dimensions:	18.0mm x 65.0mm
Approx. Weight:	42.53g