Vapcell 18650 Lithium-Ion Battery, 4000mAh, 10A, with Protection, Model B1840P

9,99 €

18650 lithium-ion battery with a capacity of 4000mAh, a current rating of 10A, a protruding positive terminal, and a protection circuit.

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Vapcell B1840P 18650 Lithium-Ion Battery – 4000mAh with Protection

The Vapcell B1840P is an INR 18650 rechargeable battery cell with a capacity of 4000mAh and a maximum discharge current of 10A. This model is suitable for flashlights and pocket lanterns that require a stable and reliable power supply.

The battery has a protruding positive terminal and a built-in protection circuit that automatically cuts off the current in the event of overcharging, over-discharging, or overcurrent.

Technical Specifications

Specifications	Value
Type	18,650 INR
Rated Capacity	4,000 mAh
Minimum capacity	3,800 mAh
Rated voltage	3.6V
Voltage at the end of charging	4.20 V
Voltage at the end of the discharge	2.5V
Maximum continuous discharge current	10A
Normal charging	1500 mA
Fast Charging	2,500 mA
Elevation	65 mm
Diameter	18.3 mm
Weight	50 g
Defense	Built-in circuit board to prevent overcharging, over-discharging, and overcurrent

Battery with protection—what does that mean?

A protection board is an electronic circuit mounted in the anode or cathode. It automatically cuts off the power supply under hazardous operating conditions.

The battery is compatible with flashlights from brands such as Acebeam, Olight, Fenix, Nitecore, and Armytec, which feature mechanical protection against reverse insertion.

The cells with protection are slightly longer and wider than the standard ones
They are not suitable for flashlights such as Zebralight and Dulotec, which are designed for unprotected batteries
Before purchasing, measure and compare the dimensions of the original battery

Safety Instructions

Charge the battery using a high-quality lithium-ion charger before using it for the first time
Operating temperature during charging: 0°C – 45°C
Operating temperature when diluted: -20°C – 75°C
Storage temperature: -5°C to 35°C
Do not expose to fire, water, or physical impact
Do not disassemble or modify the battery
Keep out of reach of children
If not used for more than 3 months, charge before use
Store in a protective case, not in a pocket or purse
Do not use if the protective film is damaged

Frequently Asked Questions

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

A protected battery has a built-in circuit board mounted at one terminal. This circuit board automatically cuts off the current in the event of overcharging, over-discharging, or excessive current. Protected cells are slightly longer and wider than standard cells, making them incompatible with certain flashlights. Unprotected batteries are more compact and are used in devices with built-in circuit-level protection.

For which flashlights is the Vapcell B1840P battery suitable?

This battery is suitable for flashlights from brands such as Acebeam, Olight, Fenix, Nitecore, and Armytec, which feature mechanical reverse-polarity protection. It is not recommended for flashlights such as Zebralight and Dulotec, which are specifically designed for cells without protection. Before purchasing, it is important to check whether the battery dimensions meet the requirements of your flashlight.

What is the capacity of the Vapcell B1840P, and why is it important?

The rated capacity of the Vapcell B1840P is 4000mAh, and the minimum guaranteed capacity is 3800mAh. A higher capacity means longer runtime for the device between charges. This is especially important for intensive use of high-power flashlights, where runtime is critical.

How do I properly charge the Vapcell B1840P battery?

The battery must be charged using a high-quality lithium-ion charger before first use. The normal charging current is 1500 mA, and fast charging is possible at 2500 mA. The charging temperature must be between 0°C and 45°C. Do not use chargers that are incompatible with 18650-format lithium-ion cells.

How should I store the battery when it won't be used for an extended period of time?

If stored for more than 3 months, it is recommended that the battery be charged before its next use. The storage temperature should be between -5°C and 35°C. Do not store the battery in a pocket or bag—use a specialized protective case. Avoid exposure to direct sunlight and moisture.

What are the dimensions and weight of the Vapcell B1840P?

The battery is 65 mm tall and 18.3 mm in diameter. It weighs 50 grams. It is important to note that, due to the built-in protection circuit, the cell is slightly larger than standard 18650 batteries without protection. Before purchasing, compare these dimensions with the battery compartment of your device.

What safety precautions should I follow when using this battery?

Do not expose the battery to fire, water, or physical impact. Do not disassemble or modify it in any way. Keep it out of the reach of children. Do not use it if the protective film is damaged. When these guidelines are followed, the battery ensures safe and reliable operation within the specified temperature range.