Vapcell 21700 F52 Rechargeable Battery – 5200mAh, 15A

The Vapcell F52 is a high-quality 21700-type lithium-ion rechargeable battery cell with a capacity of 5200mAh. It is manufactured in China and is suitable for devices that require a reliable and long-lasting power source.

The battery has a flat top and a nominal voltage of 3.6V. The maximum discharge current reaches 15A, making it suitable for devices with higher power consumption.

Key Features

Type: INR 21700, model F52 with a flat plus
Rated capacity: 5200mAh
Minimum capacity: 5050mAh
Rated voltage: 3.6 V
Maximum discharge current: 15A
Charging end voltage: 4.20 V
Discharge-end voltage: 2.5 V
Normal charging: 2000 mA
Fast charging: 4000 mA
Dimensions: diameter 21.1 mm, height 70.5 mm
Weight: 72 g

Unprotected battery—which flashlights is it suitable for?

This battery does not have a built-in protection circuit. Cells of this type are suitable for flashlights designed specifically for standard-size batteries without protection—for example, models such as Zebralight and Dulotec.

Protected batteries have a small circuit board attached to the anode or cathode that protects against overcharging, over-discharging, and excessive current. However, they are slightly longer and wider than standard batteries and are not suitable for all flashlights. They are suitable for brands such as Acebeam, Olight, Fenix, Nitecore, Armytec, and similar models, provided they have mechanical protection against reverse insertion.

The easiest way to figure out which battery you need is to measure the device's original battery in millimeters and compare it to the technical specifications. If necessary, you can contact us for clarification.

Instructions for Use

Charge the battery using a high-quality lithium-ion charger before using it for the first time.
Operating temperature during charging: 0°C to 45°C; during discharging: -20°C to 75°C.
Storage temperature: -5°C to 35°C.
Do not expose to fire, water, impact, or crushing.
Do not disassemble the battery.
Keep out of reach of children.
The battery gets hot during use—handle with care after use.
If not used for more than 3 months, charge it before use.

Safety Rules

Do not modify, puncture, or short-circuit the device.
Do not expose to water, fire, or high temperatures.
Do not use in defective devices.
Do not overcharge or undercharge the battery; do not charge it at sub-zero temperatures.
Do not use the battery if the foil is damaged.
Store in a protective case—not in a pocket or purse.

Specifications	Value
Brand	Vapcell
Model	F52
Type	21,700 INR
Design of the Plus	Flat Top
Rated Capacity	5,200 mAh
Minimum capacity	5050 mAh
Rated voltage	3.6 V
Maximum discharge current	15A
Voltage at full charge	4.20 V
Voltage at full discharge	2.5 V
Normal charging current	2000 mA
Fast charging current	4,000 mA
Diameter	21.1 mm
Elevation	70.5 mm
Weight	72 years
Defense	No protection board
Origin	China

Frequently Asked Questions

What is the difference between a battery with protection and one without?

Protected batteries have a small built-in circuit board that protects the cell from overcharging, over-discharging, and excessive current. They are slightly longer and wider than standard batteries. Unprotected batteries, such as the Vapcell F52, are exactly standard size and are suitable for devices designed specifically for such cells. It’s important to check what type of battery your flashlight or device requires before purchasing.

Is the Vapcell F52 compatible with my flashlight?

The Vapcell F52 is a battery without a protection circuit and with a flat positive terminal. It is suitable for flashlights designed for standard 21700 cells without protection, such as Zebralight and Dulotec models. It is not suitable for flashlights that require a protected battery with a protruding positive terminal. The surest way to check is to measure your original battery in mm and compare it to the F52’s dimensions: 21.1 mm in diameter and 70.5 mm in height.

What is the capacity of the Vapcell F52?

The Vapcell F52 has a rated capacity of 5200mAh and a minimum guaranteed capacity of 5050mAh. This makes it one of the higher-capacity cells in the 21700 standard, which means longer runtime between charges for devices with moderate power consumption.

How do you properly charge the Vapcell F52?

The battery must be charged using a high-quality charger designed for lithium-ion cells. The normal charging current is 2000 mA, and fast charging is supported at 4000 mA. Charging is permitted at temperatures between 0°C and 45°C. Do not charge at sub-zero temperatures. Be sure to fully charge the battery before using it for the first time.

At what temperatures can the battery be used and stored?

The operating temperature during charging is 0°C to 45°C, and during discharging, it is -20°C to 75°C. The recommended storage temperature is between -5°C and 35°C. Avoid exposing the battery to extreme temperatures, direct sunlight, and humid environments, as this may reduce the cell’s capacity and lifespan.

How do I safely store a 21700 battery?

Store the battery in a special protective case designed for lithium-ion cells. Never carry it loose in a pocket or bag, as contact with metal objects can cause a short circuit. If the battery will not be used for more than 3 months, charge it to about 50% before storing it and check it periodically. Do not store it at temperatures below -5°C or above 35°C.

What does "flat plus" mean for a 21700 battery?

A flat positive terminal means that the battery’s positive terminal is flush with the top surface of the cell, with no protrusion. Batteries with a protruding positive terminal have a slight protrusion at the positive terminal. Some devices require a specific type—be sure to check the requirements of your flashlight or device. The Vapcell F52 has a flat positive terminal, making it suitable for devices designed for this standard.