NITECORE MPB21 21700 Intelligent Battery System with Nitecore NL2150HPi battery
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NITECORE MPB21 21700 Intelligent Battery System with Nitecore NL2150HPi battery

by: Nitecore

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The 21700 Intelligent Battery System is an innovative power solution which consists of the NITECORE 21700 i Series Battery, the ML21 Magnetic Light, the 

MC21 Magnetic Charger and the MPB21 Magnetic Power Bank. Designed to offer a consistent power source and to minimize the burden in the outdoor 

activities, it can easily provide the necessary light source and transfer power between different devices on the go.


21700 i Series Battery

As a patent product developed by NITECORE (Patent No. ZL201820118916.0, US Patent Pending), the 21700 i Series Battery is a proprietary 21700 

rechargeable Li-ion battery featuring dual way output with positive and negative polarities at both ends and a high energy density. It enables a highly efficient 

output by minimizing the loss of power due to internal resistance. A 21700 i Series Battery has an energy density of up to 240mWh/g, 11% higher than 18650 

batteries.


The dual polarities of the 21700 i Series Battery at both ends have broken the convention of linking the head and the tail of the flashlight in order to minimize 

its size and weight. The internal resistance is therefore greatly reduced to offer a direct energy conversion to power the device. Thanks to the groundbreaking 

technology and techniques, this can bring more possibilities to our flashlight design, most notably the NITECORE i4000R Future Oriented 21700 Intelligent 

Tactical Flashlight. The 21700 i Series Battery is compatible with conventional chargers including NITECORE UMS2, UMS4, UI1, UI2 and more, besides other 

accessories in the 21700 Intelligent Battery System. It can also power conventional 21700 flashlights and other compatible devices.


ML21 High CRI Magnetic Light Module

With a max output of 80 lumens, it is perfect for either handheld or tail stand to be used in short-distance illumination such as reading, camping or emergency. 

Attach the ML21 to the end marked with (+) of the i Series Battery to activate the light. Detach to deactivate it.


MC21 Magnetic Charger Module

The incredibly tiny size significantly eases the outdoor burden. Attach the MC21 to the end marked with (+) of the i Series Battery before using the USB cable 

to connect an external power supply (e.g. a USB charging device) to the charging port to begin the charging process.


MPB21 Magnetic Power Bank Module

Combined with a 21700 i Series Battery, it aims to provide a consistent power supply in the outdoor environment. After attaching the MPB21 to the end marked 

with (+) of the i Series Battery, use the USB cable to connect a USB device to the input/output port to begin the charging process.

 

 

LED Brightness Level Waterproof Specifications (Width, Length, Diameter) Weight Battery
9 high CRI LEDs 3 output level Brightness IPX66 (Rated) 65.5mm×50mm×25mm 59.1g Built-in 1200mAh Li-ion battery
FL1 STANDARD General Mode
High Mid Low Caution Light SOS Beacon
Output (lumens) 250 65 8 250 250 250
Runtime  *1h 5h15min 38h / / /
Beam Diameter 24m 12m 3.4m / / /
Beam Intensity 38cd 9cd 0.75cd / / /
Impact Resistance (1.5 m)

NOTE: The stated data has been measured by using a built-in Li-ion
battery (3.7V 1200mAh) under laboratory conditions. End-user results may
vary due to individual usage habits and environmental conditions.
* The runtime for HIGH mode is the testing result before starting
temperature regulation.

    • ML21 Magnetic Light
    • Brightness : 80 Lumens
    • CRI ≥ 90
    • Colour Temperature : 4000 - 4500K
    • Run Time : 19 h
    • Beam Diameter : 12 m
    • Peak Beam Intensity : 9cd
    • Note : The stated data is measured using 1 x 5000 mAh 21700 i Series Li-ion battery under laboratory conditions. The data may vary in real world use due to different battery usage or environmental conditions.
    • MPB21 Magnetic Power Bank
    • Input : 5V-2A (MAX)
    • Output Voltage : ±1% ( Battery )  / 5V±5% (USB)
    • 2A ( MAX )
    • Size : 2.58"×1.97"×0.98"(65.5mm×50mm×25mm)
    • Weight: 2.08oz(59.1g)
    • ML21 Magnetic Light
    • MPB21 Magnetic Power Bank
    • 21700 i Series Battery


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