Description
Efest 3000mAh 20A 18650 Battery – High-Performance Lithium-Ion Power Cell
Overview
The Efest 3000mAh 20A 18650 Battery is a high-capacity rechargeable lithium-ion power cell designed for high-drain applications. Featuring a 3000mAh capacity and a 20A continuous discharge rate, this battery provides long-lasting and stable performance, making it a reliable choice for power-hungry devices.
Key Features
High Capacity: 3000mAh ensures extended runtime before requiring a recharge.
High Discharge Rate: 20A continuous discharge, ideal for high-drain applications.
Lithium-Ion Chemistry: Stable and efficient, minimizing overheating risks.
Rechargeable & Durable: Supports multiple charge cycles with minimal performance loss.
Compact 18650 Size: Universally compatible with a wide range of electronic devices.
Specifications
| Specification | Details |
|---|---|
| Brand | Efest |
| Model | 3000mAh 20A |
| Battery Type | 18650 |
| Capacity | 3000mAh |
| 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 3000mAh 20A is widely used in high-drain electronic devices, including:
Flashlights – Provides steady power for high-lumen LED torches.
Battery Packs – Commonly used in custom-built battery packs for various applications.
Power Tools – Suitable for cordless drills, saws, and high-performance equipment.
RC Vehicles & Drones – Ensures stable and long-lasting energy output.
E-Bikes & Electric Scooters – Frequently used in DIY battery packs for electric vehicles.
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 3000mAh 20A 18650 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.
WARNING:
The user must have appropriate understanding of lithium ion batteries before purchase. Use caution when working with and using lithium ion batteries as they are very sensitive to charging characteristics and may explode, burn, or cause a fire if misused or mishandled. Always charge in or on a fire-proof surface. Never leave batteries charging unattended. Buyer is responsible for any damage or injury caused by misuse or mishandling lithium ion batteries and chargers. No express or implied guarantee of compatibility with any device can be made. Charge only with a smart charger designed for this specific type of lithium ion battery. Do not mix and match old and new, used and unused batteries.
- DO NOT USE WITH E-CIGARETTE, VAPORIZER, OR SIMILAR DEVICE
- MISUSING OR MISHANDLING LITHIUM ION BATTERIES CAN POSE A SERIOUS RISK OF PERSONAL INJURY, PROPERTY DAMAGE, OR DEATH
- BATTERIES MAY EXPLODE, BURN, OR CAUSE A FIRE IF MISUSED OR MISHANDLED
- ONLY USE WITH PROPER CIRCUITRY IN A PROTECTED BATTERY PACK
- ONLY USE WITHIN MANUFACTURER LISTED SPECIFICATIONS
- DO NOT STORE LOOSE BATTERY IN A POCKET, PURSE ETC. - ALWAYS USE A PROTECTIVE CASE OR BOX
- KEEP AWAY from metal objects to prevent short circuiting
- DO NOT short circuit
- DO NOT use if wrapper or insulator is damaged or torn
- DO NOT use if damaged in any way
- DO NOT overcharge or over-discharge
- DO NOT modify, disassemble, puncture, cut, crush, or incinerate
- DO NOT expose to liquids or high temperatures
- DO NOT solder, spot weld only
- User must be familiar with handling lithium ion batteries before purchase
- Usage of batteries is AT YOUR OWN RISK
- ALWAYS charge in or on a fire-proof surface and never leave charging batteries unattended
- RESELLERS MUST FORWARD ALL WARNINGS TO ALL CUSTOMERS FOR THEIR REFERENCE AND SAFETY