Description
Introducing the ultimate all-around cell in the 21700 form factor size - the pinnacle of power and performance. Boasting a minimum capacity of 4,000 mAh and a typical capacity of 4,200 mAh, along with an astounding 45 Amp Maximum Continuous Discharge Rating, this cell stands tall above the rest. While continuous use at the maximum discharge rate may reduce its overall lifespan, this cell can handle the demand with ease. When examined on a discharge with capacity graph, this cell hits harder and lasts longer than any other. It delivers an unbeatable combination of high capacity and insane discharge/drain ability, making it the clear choice for any device requiring the 21700 form factor size. With this miraculous cell, your devices will finally be able to reach their true potential.
FREE 21700 battery case included with your purchase
SPECIFICATIONS:
| Manufacturer: | Molicel |
| Model: | INR-21700-P42A (P42A) |
| Size: | 21700 |
| Style: | Flat Top |
| Protected: | NO, UNPROTECTED. This cell is unprotected and intended for use in protected battery packs only and NOT individually or as a standalone product. In order to operate safely it must have additional protection in the form of a PCB (protection circuit board) or BMS (battery management system), which is not included. |
| Nominal Capacity: | 4200mAh |
| Discharge Current: | 45A Maximum Continuous |
| Nominal Voltage: | 3.6V |
| Maximum Voltage: | 4.2V |
| Cutoff Voltage: | 2.5V |
| Approximate Dimensions: | 21.7mm x 70.2mm |
| Approximate Weight: | 67g |
| Origin: | Taiwan |
| Specification Datasheet: | Molicel INR21700P42A 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.
- 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.