Vapcell 4200mAh INR 21700 High Drain Vape Battery

Overview

The Vapcell 4200mAh INR 21700 Battery is a rechargeable lithium-ion cell designed for compact devices that need dependable, high-output power. It uses the 21700 format, which is wider and longer than a standard 18650 cell, helping deliver strong runtime in compatible equipment. Retail listings identify this Vapcell cell as a flat-top, unprotected 21700 battery with a nominal voltage of 3.6V, a full charge voltage of 4.2V, and a manufacturer-rated capacity of 4200mAh. The same listings also state a continuous discharge rating of 35A, with a maximum discharge current of 50A when temperature cut-off conditions are met. That makes it suitable for suitably designed high-drain applications where both capacity and power delivery matter. Always check your device’s battery requirements, polarity, and clearances before use, and charge only with a compatible lithium-ion charger.

Key Features

• 4200mAh capacity for extended runtime
• 35A continuous discharge rating
• 50A maximum discharge with thermal cut-off
• 21700 format for higher cell capacity
• Flat-top, unprotected lithium-ion cell
• 3.6V nominal voltage output

Specifications

• Brand: Vapcell
• Model: T42 21700 4200mAh
• Battery Type: INR lithium-ion
• Cell Size: 21700
• Capacity: 4200mAh
• Nominal Voltage: 3.6V
• Full Charge Voltage: 4.2V
• Continuous Discharge Current: 35A
• Maximum Discharge Current: 50A
• Protection: Unprotected
• Style: Flat top
• Origin: China

Compatibility

• Compatible with devices designed for 21700 lithium-ion cells
• Suitable for high-drain equipment requiring flat-top cells
• Not suitable for devices needing protected batteries

Package Contents

• 1 x Vapcell 4200mAh INR 21700 Battery

Usage Guidance

• Use only in 21700-compatible devices
• Charge with a suitable lithium-ion charger
• Observe correct polarity before installing
• Do not use if the wrapper is damaged

Frequently Asked Questions

Is this battery protected?

No, it is an unprotected flat-top cell.

What voltage does it use?

Its nominal voltage is 3.6V, with 4.2V when fully charged.

Can it be used in any device?

Only in devices specifically designed for 21700 cells.