Efest 18650 3500mAh 20A IMR Battery
Efest 18650 3500mAh 20A IMR Battery Efest 18650 3500mAh 20A IMR Battery Efest 18650 3500mAh 20A IMR Battery Efest 18650 3500mAh 20A IMR Battery Efest 18650 3500mAh 20A IMR Battery
Efest

Efest 18650 3500mAh 20A IMR Battery

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Efest 18650 3500mAh 20A Battery – High-Performance Lithium-Ion Power Cell

Overview

The Efest 18650 3500mAh 20A Battery is a high-capacity lithium-ion rechargeable power cell, designed for efficient and reliable power delivery. With a 3500mAh capacity and a continuous discharge rate of 20A, this battery is an excellent choice for high-drain applications, ensuring long-lasting performance and stable power output.

Key Features

High Capacity: 3500mAh ensures extended runtime before needing a recharge.
Moderate-to-High Discharge Rate: 20A continuous discharge, suitable for power-hungry applications.
Lithium-Ion Chemistry: Provides efficient, stable, and reliable energy output.
Rechargeable & Long-Lasting: Supports multiple charge cycles with minimal degradation.
Compact 18650 Size: Universally compatible with a wide range of electronic devices.

Specifications

Specification Details
Brand Efest
Model 18650 3500mAh 20A
Battery Type 18650
Capacity 3500mAh
Nominal Voltage 3.7V
Full Charge Voltage 4.2V
Discharge Cutoff Voltage 2.5V
Continuous Discharge Rate (CDR) 20A
Rechargeable Yes
Protected No (Unprotected cell – use with proper safety measures)
Cycle Life ~300+ charge cycles
Diameter 18.3mm
Length 65.0mm
Weight ~48g

Applications

The Efest 18650 3500mAh 20A is widely used in high-drain electronic devices, including:

Flashlights & Tactical Gear – Provides steady power for high-lumen LED flashlights.
Battery Packs – Frequently used in custom-built power storage solutions.
Power Tools – Ideal for cordless drills, saws, and industrial tools.
RC Vehicles & Drones – Ensures stable and reliable energy output.
E-Bikes & Electric Scooters – Often used in DIY battery packs for lightweight electric vehicles.
Consumer Electronics – Suitable for laptops, wireless devices, and various industrial equipment.

Safety Guidelines & Warnings

IMPORTANT SAFETY NOTICE ️
Lithium-ion batteries require proper handling and knowledge to ensure safe operation. Failure to follow safety guidelines may result in fire, explosion, serious injury, or property damage.

General Safety Guidelines

Only purchase and use if you fully understand lithium-ion battery safety.
Always charge in or on a fire-resistant surface—never leave batteries charging unattended.
Use only a compatible smart charger designed specifically for this type of battery.
Store batteries in a protective case—never carry them loose in a pocket, bag, or purse.
Keep away from metal objects (keys, coins, tools) to prevent short circuits.
Use only within manufacturer-listed specifications and in protected battery packs.
Resellers must provide these warnings to all customers.

Prohibited Uses & Handling

DO NOT use this battery in e-cigarettes, vaporizers, or similar devices.
DO NOT mix old and new, or used and unused batteries.
DO NOT short circuit, puncture, cut, crush, incinerate, or modify the battery.
DO NOT use if the battery wrapper is torn or damaged in any way.
DO NOT overcharge or over-discharge—this can lead to battery failure.
DO NOT expose the battery to liquids, extreme heat, or direct sunlight.
DO NOT solder directly—only use spot welding for battery pack assembly.

User Responsibility & Risk Acknowledgment

  • The user assumes full responsibility for proper handling, charging, and storage.
  • Misuse or mishandling may result in serious injury or damage.
  • No guarantee of compatibility with any specific device is provided.
  • Usage of this battery is at your own risk.

By purchasing and using the Efest 18650 3500mAh 20A Battery, you acknowledge and agree to follow all safety guidelines. Failure to comply may result in hazardous consequences. Prior knowledge of lithium-ion battery safety is required before purchase.

Stay safe and handle responsibly.

 

 

Efest 18650 3500mah Battery