Vapcell Dulotec 18650 M35 3500mAh USB-C Battery with Raised Positive Terminal and Protection

13,99 €

Type: 18650
Capacity: 3500mAh
Dimensions: (Height) 71 mm (Diameter) 18.3 mm
Voltage: 3.6V
Maximum continuous discharge current: 15A
USB-C charging port

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18650 rechargeable battery with a built-in USB-C charging port

The Vapcell Dulotec M35 is an 18650-format lithium-ion rechargeable battery with a capacity of 3500mAh. The built-in USB-C port allows for direct charging without a separate charger.

The battery has a built-in protection circuit in the anode. It protects against short circuits, overcharging, over-discharging, and overheating.

Which flashlights is this battery suitable for?

This model features a protruding plus sign and is compatible with flashlights that have mechanical protection against reverse insertion. These include devices from brands such as Acebeam, Olight, Fenix, Nitecore, Armytec, and similar brands.

This battery is not suitable for flashlights such as Zebralight, which are designed for unprotected cells. For these, we recommend using the unprotected version.

What are protected batteries?

Protected batteries have a small circuit board built into the anode or cathode. It monitors the current, voltage, and temperature, and shuts down the battery if any of these values reach dangerous levels.

Due to the added components, these cells are slightly longer and wider than standard cells. Before purchasing, it is recommended that you measure the dimensions of the original battery in millimeters and compare them with the technical specifications.

Format: INR 18650
Model: M35 with a raised plus sign
Rated capacity: 3500mAh
Minimum capacity: 3400mAh
Rated voltage: 3.6V
Charging end voltage: 4.20V
Discharge-end voltage: 2.5V
Maximum continuous discharge current: 15 A
Maximum peak discharge current: up to 25 A for 5 seconds
Normal charging: 1000 mA
Fast charging: 2000 mA
Dimensions: 18.3 mm in diameter, 71 mm in height
Weight: 50.3 g
Built-in USB-C port for direct charging
A protruding positive terminal for flashlights with two or more batteries
Made in China

Note: A USB-C charging cable is not included in the package.

Operating Instructions

Do not use in high temperatures or humid environments. Charging: 0°C to 45°C. Discharging: -20°C to 75°C. Storage: -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 gets hot during use—handle with care after use.
If the battery has been stored for more than 3 months, charge it before use.

Safety Rules

Do not modify, puncture, cut, 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 the battery at sub-zero temperatures.
Do not use a battery with a damaged foil.
Store in a protective case—not in a pocket or purse.

Specifications	Value
Brand	Vapcell Dulotec
Model	M35
Format	18,650 INR
Rated Capacity	3,500 mAh
Minimum capacity	3,400 mAh
Rated voltage	3.6V
Voltage at full charge	4.20 V
Voltage at full discharge	2.5V
Maximum continuous discharge current	15A
Maximum instantaneous discharge current	up to 25A for 5 seconds
Normal charging	1000 mA
Fast Charging	2000 mA
Charging Method	Built-in USB-C port
Diameter	18.3 mm
Elevation	71 mm
Weight	50.3 g
Type Plus	Prominent
Defense	Yes—built-in protection against overcharging, over-discharging, overheating, and short circuits

Frequently Asked Questions

What is the difference between a protected and an unprotected 18650 battery?

A protected battery contains a small electronic circuit board embedded in the anode or cathode. It monitors voltage, current, and temperature, and shuts down the battery if any of these values reach dangerous levels. An unprotected cell does not have such a circuit and relies entirely on the device’s protection. Protected batteries are slightly longer and wider and are not compatible with all flashlights.

Do I need a separate charger for the Vapcell M35?

No. The Vapcell Dulotec M35 battery has a built-in USB-C port that allows it to be charged directly. This makes it convenient to use, as no separate charger is required. Please note that the USB-C cable is not included in the package and must be purchased separately.

For which flashlights is the Vapcell M35 battery suitable?

This battery is suitable for flashlights with mechanical reverse-polarity protection, such as those offered by brands like Acebeam, Olight, Fenix, Nitecore, and Armytec. It is not suitable for flashlights like Zebralight, which are designed specifically for unprotected cells. Before purchasing, it is recommended that you measure the size of the original battery and compare it to the dimensions of the M35: diameter 18.3 mm, height 71 mm.

How quickly does the Vapcell M35 battery charge?

The battery supports two charging modes. In normal mode, the charging current is 1000mA. In fast-charging mode, the current reaches 2000mA. Charging is done directly through the built-in USB-C port, without the need for an external charger.

At what temperature can the battery be charged and stored?

The battery can be charged at temperatures ranging from 0°C to 45°C. Discharging is permitted within the range of -20°C to 75°C. A storage temperature between -5°C and 35°C is recommended. Do not charge at sub-zero temperatures, as this may damage the cell.

How do I properly store an 18650 battery?

The battery should be stored in a protective case, away from moisture, fire, and direct sunlight. Do not place it in a pocket or bag without a protective case to avoid accidental short circuits. If storing the battery for more than 3 months, it is recommended that you charge it before use. The storage temperature should be between -5°C and 35°C.

What are the maximum discharge currents of the Vapcell M35?

The maximum continuous discharge current of the Vapcell M35 is 15A. The maximum peak discharge current reaches 25A, but only for 5 seconds. These values determine which devices the battery is suitable for. When selecting a battery for a specific flashlight or device, it is important to verify that the current requirements match these parameters.