Vapcell J30 18650 Battery, 3000 mAh, 15 A/25 A

7,00 €

Type: 18650
Capacity: 3000mAh
Dimensions: (Height) 65 mm (Diameter) 18.4 mm
Voltage: 3.6V
Maximum continuous discharge current: 15A

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Vapcell J30 18650 Rechargeable Battery, 3000mAh, 15A/25A

The Vapcell J30 is a reliable 18650-format lithium-ion battery with a rated capacity of 3000mAh. It is suitable for flashlights and devices that require a stable and powerful power source.

The battery supports a maximum continuous discharge current of 15A and a peak current of up to 25A for 5 seconds. This makes it suitable for devices with higher power consumption.

Key Features of the Vapcell J30 18650 Battery

Rated capacity: 3000mAh
Minimum capacity: 2900mAh
Maximum continuous discharge current: 15A
Maximum peak discharge current: 25 A (for 5 seconds)
Rated voltage: 3.6V
Charging end voltage: 4.20V
Discharge-end voltage: 2.5V
Normal charging: 1500 mA, CCCV, 100 mA cut-off
Fast charging: 3000 mA
Dimensions: 18.4 x 65.0 mm
Weight: 48 g (approximately)
Color: gold
Tip type: flat

Specifications	Value
Brand	Vapcell
Model	J30
Format	18650
Rated Capacity	3,000 mAh
Minimum capacity	2,900 mAh
Maximum continuous discharge current	15A
Maximum peak discharge current	25A (for 5 seconds)
Rated Voltage	3.6V
Voltage at the end of charging	4.20 V
Voltage at the end of the discharge	2.5V
Normal charging	1500 mA, CCCV, 100 mA cutoff
Fast Charging	3000 mA
Dimensions	18.4 x 65.0 mm
Weight	48 years (approximately)
Color	Gold
Peak Type	Flat

A battery with or without protection—what's the difference?

Batteries with protection circuits contain a small circuit board in the anode or cathode. It protects against overcharging, over-discharging, and excessive current—in case of danger, the protection circuit automatically shuts off.

Batteries with protection circuits often have a raised positive terminal and are suitable for flashlights with mechanical reverse-polarity protection. Examples include models from Acebeam, Olight, Fenix, Nitecore, and Armytec.

Unprotected batteries are smaller in size and can deliver a higher current. They are suitable for flashlights designed specifically for standard sizes—for example, Zebralight and Dulotec flashlights.

Before purchasing, measure the original battery in millimeters and compare it to the technical specifications. If you need help, please contact us—we'll help you choose the right battery for your device.

Instructions for Use

Charge the battery using a high-quality lithium-ion battery charger before using it for the first time.
Do not use or store at high temperatures or high humidity.
- Charging: 0°C to 45°C
- Operating temperature: -20°C to 75°C
- Storage: -5°C to 35°C
Do not throw the battery into fire or water—there is a risk of fire or explosion.
Do not crush or strike the battery.
Do not disassemble the battery.
Keep out of reach of children.
The battery gets hot during use—handle with care after use.
If the device is stored for more than 3 months without use, charge the battery before using it again.

Safety Rules

The battery may catch fire or explode if used improperly. Strictly follow these rules:

Do not modify, disassemble, drill holes in, cut, or short-circuit the device.
Do not expose to water, fire, or high temperatures.
Do not use in damaged devices.
Do not overcharge or over-discharge the battery.
Do not charge at sub-zero temperatures.
Do not use a battery with a damaged foil.
Do not carry it in your pocket or purse without a protective case.

Frequently Asked Questions

What is the difference between an 18650 battery with protection and one without protection?

Protected batteries contain a small electronic circuit board that protects the cell from overcharging, over-discharging, and excessive current. When dangerous levels are reached, the circuit board automatically shuts down the battery. These batteries are usually slightly longer than standard ones and are not always compatible with all flashlights. Unprotected batteries are more compact and can deliver a higher current, but they require a device with built-in protection. The Vapcell J30 is an unprotected battery suitable for devices designed for the standard 18650 format.

What is the maximum discharge current of the Vapcell J30?

The Vapcell J30 supports a maximum continuous discharge current of 15A. During peak loads, the battery can reach up to 25A, but only for a brief period of 5 seconds. These specifications make it suitable for devices with higher current consumption.

How do you properly charge a Vapcell J30 18650 battery?

Before first use, the battery must be charged using a high-quality charger designed for lithium-ion batteries. Normal charging is performed at a current of 1500 mA using the CCCV method, with a cut-off at 100 mA. Fast charging at a current of 3000 mA is also possible. Do not charge at temperatures below 0°C or above 45°C. The voltage at the end of charging is 4.20 V.

For which flashlights is the Vapcell J30 battery suitable?

The Vapcell J30 is an unprotected battery with a flat top and a standard 18650 format, measuring 18.4 x 65.0 mm. It is suitable for flashlights designed for unprotected, standard-size batteries. Before purchasing, measure your flashlight’s battery in mm and compare it to the dimensions listed. If in doubt, contact the Dulotec.COM team for advice.

How do I properly store an 18650 lithium-ion battery?

The battery should be stored at a temperature between -5°C and 35°C, away from moisture, fire, and direct sunlight. Do not leave it in a pocket or bag without a protective case—this helps prevent accidental short circuits. If the battery has not been used for more than 3 months, charge it before using it again. Do not use a battery with a torn or damaged foil.

How much does the Vapcell J30 weigh, and what are its dimensions?

The Vapcell J30 18650 battery measures 18.4 × 65.0 mm and weighs approximately 48 grams. It is gold in color and has a flat positive terminal. These specifications are important when checking compatibility with a specific device or flashlight.

What safety precautions should I follow when working with lithium-ion batteries?

Lithium-ion batteries can catch fire or explode if used improperly. Never disassemble, crush, or short-circuit the battery. Do not expose it to fire, water, or extreme temperatures. Do not charge the battery at sub-zero temperatures, and do not overcharge it beyond 4.20V. Do not use a battery with visibly damaged foil. Keep batteries out of the reach of children and store them in a protective case designed for this purpose.