Vapcell 26650 5500mAh 20A Battery

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Vapcell 26650 Rechargeable Battery, 5500mAh, 20A

The Vapcell 26650 is a high-quality lithium-ion rechargeable battery cell with a high capacity of 5500mAh and a maximum discharge current of 20A. It is suitable for powerful flashlights and devices with higher power consumption.

The battery has a raised positive terminal, making it compatible with flashlights equipped with mechanical reverse-polarity protection.

Specifications	Value
Brand	Vapcell
Model	26650 5500 mAh 20 A with a protruding positive terminal
Type	Lithium-ion rechargeable battery cell (INR)
Rated Capacity	5,500 mAh
Minimum capacity	5,400 mAh
Rated voltage	3.6 V
Voltage at the end of charging	4.20 V
Voltage at the end of the discharge	2.5 V
Maximum discharge current	20A
Normal charging	2000 mA
Fast Charging	3000 mA
Elevation	65.2 mm
Diameter	26.6 mm
Weight	96g
Origin	China

A battery with or without protection?

Protected batteries contain a small electronic circuit board located in the anode or cathode. It protects the cell from overcharging, over-discharging, and excessive current. When critical thresholds are reached, the protection circuit activates and shuts down the battery.

Batteries with protection and a raised positive terminal are suitable for flashlights with mechanical reverse-polarity protection. Brands such as Acebeam, Olight, Fenix, Nitecore, and Armytec offer such models.

It is important to note that protected batteries are slightly longer and wider than standard ones. They are not suitable for all flashlights—some devices require standard sizes or a higher current, which a protected cell cannot provide.

The most reliable way to choose the right battery is to measure the original cell in millimeters and compare it with the technical specifications. If necessary, please contact us for advice.

Operating Instructions

Charge the battery using a high-quality Li-Ion charger before using it for the first time.
Do not use in high temperatures or humid environments.
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 throw into fire or water—risk of fire or explosion.
Do not crush, strike, or disassemble the battery.
Keep out of reach of children.
The battery may be hot after use—handle with care.
If the device has not been used for more than 3 months, charge the battery before use.

Safety Rules

Do not modify, puncture, cut, or short-circuit the device.
Do not expose to water, fire, or extreme temperatures.
Do not use in defective devices.
Do not overcharge or undercharge—use an appropriate charger.
Do not charge 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.

Frequently Asked Questions

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

A protected battery contains a small electronic circuit board that protects the cell from overcharging, over-discharging, and excessive current. When dangerous levels are reached, it automatically shuts off the battery. Protected batteries are slightly longer and wider than standard ones, so they are not suitable for all devices. Unprotected batteries are standard size and can provide a higher output current, but they require more careful use and a high-quality charger with built-in protection.

What types of flashlights is the Vapcell 26650 5500mAh battery suitable for?

The Vapcell 26650 with a protruding positive terminal is suitable for flashlights with mechanical reverse-polarity protection, such as those offered by brands like Acebeam, Olight, Fenix, Nitecore, and Armytec. Before purchasing, it is important to check and measure the original battery in your flashlight in millimeters and compare it to the dimensions of this cell—26.6 mm in diameter and 65.2 mm in height. If you have any questions, please contact us for advice.

What is the maximum discharge current for this battery?

The maximum discharge current of the Vapcell 26650 5500mAh is 20A. This makes it suitable for devices with higher power consumption. The nominal voltage is 3.6V, the fully charged voltage is 4.20V, and the end-of-discharge voltage is 2.5V. Do not exceed these values to preserve the battery’s life and ensure its safety.

How should the Vapcell 26650 battery be charged?

The battery must be charged using a high-quality charger designed for lithium-ion cells. The normal charging current is 2000 mA, and 3000 mA for fast charging. The operating temperature during charging is 0°C to 45°C. Do not charge at sub-zero temperatures, and do not overcharge the battery beyond 4.20 V.

How do I store the battery properly?

The battery should be stored at a temperature between -5°C and 35°C, in a dry place protected from direct sunlight. Never place it in a pocket or bag without a protective case, as contact with metal objects can cause a short circuit. If the battery has not been used for more than 3 months, charge it before use.

Is the battery safe if used improperly?

Lithium-ion batteries may catch fire or explode if used improperly. Do not throw the battery into fire or water, do not crush it, and do not short-circuit it. Do not use a battery with a damaged protective film. Keep it out of the reach of children and do not disassemble it. Follow all safety instructions listed in the user manual.

Where can I find the right battery for my flashlight?

The most reliable way is to measure the original battery in your flashlight in millimeters and compare it to the technical specifications of the battery you want. At Dulotec.COM, we offer a wide selection of rechargeable batteries, and you can contact us for advice on the right model for your device.