Description
EVE 40PL 21700 Battery – 4000mAh High-Drain Lithium-Ion Power Cell
The EVE 40PL 21700 battery is a high-performance lithium-ion rechargeable cell designed to deliver reliable power and extended runtime for high-drain devices. With a robust 4000mAh capacity and a continuous discharge rate of 70A, this cell balances capacity and output—making it ideal for power tools, e-bikes, portable electronics, and battery pack builds. Its larger 21700 form factor offers increased energy density and longer performance compared to standard 18650 cells.
Key Features:
- 4000mAh High Capacity: Delivers extended energy output for longer runtime between charges.
- 70A Continuous Discharge: Supports medium-to-high-drain devices with stable, powerful output.
- Advanced Lithium-Ion Chemistry: Provides low internal resistance and consistent efficiency across usage cycles.
- Durable & Rechargeable: Designed for multiple charge cycles with minimal degradation in performance.
- 21700 Format Advantage: Offers superior energy density and longer service life compared to traditional 18650 batteries.
| Manufacturer: | EVE |
| Model: | 40PL |
| Size: | 21700 |
| Positive Terminal: | Flat Top |
| Nominal Capacity: | 4000mAh |
| Continuous Discharge Rating (max): | 70A |
| Nominal Voltage: | 3.6V |
| Maximum Voltage: | 4.2V |
| Discharge cut-off Voltage: | 2.5V |
| Protected: | NO, UNPROTECTED. |
| Rechargeable: | Yes |
| Approx. Dimensions: | 21mm x 70.2mm |
| Approx. Weight: | 65g |
| Country of Origin: | China |
| Data Specification Sheet: | EVE 40PL Datasheet |
⚠ 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 or box.
- 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 use in devices such as e-cigarettes or vaporizers.
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What is Thermal Runaway?
- A dangerous chain reaction where heat generated by a failing battery causes it to overheat further, potentially leading to fire or explosion.
- Causes: Overcharging, short circuits, physical damage, or exposure to high temperatures.
- Prevention: Use a smart charger, avoid physical damage, and store batteries in a cool, dry place.
- Storage & Transport: Always store batteries in protective cases or boxes 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. These are signs of internal damage or instability, and continued use could result in failure, fire, or explosion.
- Charging: Use a smart charger designed specifically for lithium-ion batteries and ensure that the charger's voltage matches the battery's specifications. Never overcharge, over-discharge, or leave unattended while charging.
- Prohibited Activities: Do not short circuit, modify, puncture, crush, expose to liquids, or solder directly onto the battery (spot weld only).
- Emergency Response: If the battery shows signs of thermal runaway (e.g., smoke, swelling, or heat), immediately stop use and move it to a non-flammable surface (e.g., concrete or sand). For fires, use a Class D fire extinguisher or sand—never use water.
Disclaimer
IMR Batteries 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 product warnings and safety guidelines are effectively communicated to their customers. Some cells are sold in bulk packaging and are not individually packaged. Resellers must provide appropriate packaging for each individual cell sold and must not distribute cells loose, unprotected, or without a proper storage box or case.
Product compatibility is the sole responsibility of the customer. IMR Batteries does not guarantee compatibility with any specific device or application. We are not responsible for the design, assembly, performance, or safety of any battery pack constructed using our cells. It is the customer’s responsibility to ensure proper cell matching, protection circuitry, configuration, and safe construction practices. Users and resellers assume full responsibility for the safe handling, usage, and distribution of this product.