Description
The EFEST 25EF 18650 20A 2500mAh Flat Top Rechargeable Battery is a powerhouse of energy, tailor-made for high-demand applications. Designed to deliver consistently reliable performance, this battery boasts a 2500mAh capacity and a robust 20A maximum continuous discharge rate, making it a perfect match for high-drain devices like vaping mods, tactical flashlights, and portable electronic devices. With its premium INR chemistry and flat-top design, the EFEST 25EF combines longevity with peak performance, all within the popular 18650 battery size.
- High-Energy Capacity:Features a substantial 2500mAh capacity, providing extended usage times for your essential devices without frequent recharging.
- Robust Discharge Rate: Equipped with a 20A continuous discharge rate, ideal for powering high-performance devices that require sustained, intense power.
- Versatile Compatibility: Perfectly sized for 18650-compatible devices, fitting a wide range of electronics like portable power packs.
- Durable and Reliable: Built with INR chemistry for optimal performance and safety, offering a stable and durable power source.
- Unprotected Design: Offers flexibility and high output necessary for specialized devices, emphasizing direct, powerful applications in an unprotected flat top configuration.
SPECIFICATIONS
| Manufacturer: | EFest |
| Size: | 18650 |
| Nominal Capacity: | 2500mAh |
| Nominal Voltage: | 3.7V |
| Maximum Voltage: | 4.2V |
| Discharge: | 20A Maximum Continuous |
| Positive: | Flat |
| Protected: | NO, UNPROTECTED |
| Rechargeable: | Yes |
| Dimensions: | 18.0mm x 65.0mm |
| Weight: | 42.53g |
| Country of Origin: | China |
⚠ Important Safety Warnings
Improper handling or misuse of this lithium-ion battery can result in FIRE, EXPLOSION, or THERMAL RUNAWAY, causing personal injury, property damage, or death. Users must read and follow all safety guidelines before purchase and use. Click here to review the full safety guidelines.
- Critical Warning: Never carry loose batteries in your pocket, purse, or bag. Loose batteries can come into contact with metal objects like keys or coins, causing a short circuit, which may result in severe burns, fire, or explosion. Always store or transport batteries in a protective case.
- Intended Use: This battery is designed for integration into protected battery packs with a Battery Management System (BMS) or Protection Circuit Board (PCB). It is not intended for standalone use or for e-cigarettes, vaporizers, or similar devices.
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Thermal Runaway: A chain reaction where heat from a failing battery
causes further overheating, potentially leading to fire or explosion.
- Causes: Overcharging, short circuits, physical damage, or exposure to high temperatures.
- Prevention: Use a smart charger, avoid damage, and store batteries in a cool, dry place.
- Storage & Transport: Always store batteries in protective cases to prevent accidental contact with metal objects. Never store loose batteries in pockets, purses, bags, or near conductive materials.
- Inspection: Do not use if the PVC wrapper, terminal insulator, or casing is damaged, dented, leaking, or bulging. Continued use could result in failure, fire, or explosion.
- Charging: Use a smart charger specifically designed for lithium-ion batteries and ensure the charger's voltage matches the battery's specifications. Never overcharge, over-discharge, or leave unattended while charging.
-
Prohibited Activities:
- Do not expose the battery to extreme heat, fire, or liquids.
- Do not short circuit, puncture, crush, or modify the battery.
- Do not charge or discharge beyond the manufacturer’s voltage range.
- Do not dispose of in regular trash—always recycle at approved facilities.
- Emergency Response: If the battery overheats, emits smoke, or swells, move it to a non-flammable surface (e.g., sand or concrete) and stop use immediately. In case of fire, use a Class D fire extinguisher or sand. Do not use water.
Disclaimer
18650Battery.com is not responsible for any damages, injuries, or claims arising from improper use, handling, or failure to follow these safety guidelines. Lithium-ion batteries require strict adherence to all safety protocols. It is the reseller's responsibility to ensure all safety warnings and product guidelines are effectively communicated to customers. Users and resellers assume full responsibility for the safe handling, usage, and distribution of this product.