Key Features
- 1000mAh Capacity: Delivers dependable runtime for compact, power-hungry devices.
- 10A Continuous Output: Designed to handle demanding applications with confidence.
- 3.7V Nominal Voltage: Provides consistent power with a full charge voltage of 4.2V.
- Flat-Top Lithium-Ion Cell: Suitable for devices requiring flat-top battery contacts.
- Rechargeable & Portable: Compact size and rechargeable design support long-term use.
Overview
The Efest 18500 1000mAh rechargeable lithium-ion battery offers reliable performance in a compact and lightweight design. With a 10A maximum continuous discharge rating and pulse capability rated up to 15A by Efest, this flat-top, unprotected cell is intended for devices designed to operate with 18500 lithium-ion batteries. It’s a solid choice for users who need strong output without unnecessary bulk.
Applications / Uses
- 18500-compatible electronic devices
- Compact high-output flashlights
- DIY electronics and custom battery assemblies
- Bench testing and evaluation projects
- Replacement batteries for compatible lithium-ion equipment
Specifications
| Manufacturer: | Efest |
| Size: | 18650 |
| Nominal Capacity: | 1000mAh |
| Nominal Voltage: | 3.7V |
| Maximum Voltage: | 4.2V |
| Discharge: | 10A Max Continuous, 15A Max Pulse (Rated by Efest) |
| Positive: | Flat |
| Protected: | No |
| Rechargeable: | Yes |
| Dimensions: | 18.21mm x 49.45mm |
| Weight: | 31.9g |
⚠ 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.