Nitecore 21700 Intelligent Battery System


Nitecore 21700 Intelligent Battery System includes 21700 i Series Battery, ML21 Magnetic Light, MC21 Magnetic Charger and MPB21 Magnetic Power Bank.

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The Nitecore 21700 Intelligent Battery System is an innovative set-up consisting of a 21700 i Series li-ion battery, an ML21 magnetic light, MC21 magnetic charger and MPB21 magnetic power bank. Designed to offer consistent power and light whilst on your adventures, without the need for large amounts of kit. 

The patent pending i Series battery features dual way output with positive and negative polarities at both ends and high energy density of up to 240mWh/g. It enables a highly efficient output by minimising the loss of power due to internal resistance.

The Nitecore ML21 high CRI magnetic light module has a maximum output of 80 lumens and is ideal for either handheld or tail stand use, especially for applications such as reading and camping. The CRI value is ≥ 90 providing a warm and soft beam that reduces eye strain and provides excellent colour retention.

The MC21 magnetic charger module features a micro USB port to easily recharge the 21700 battery. Simply attach the MC21 to the i Series battery, plug in a micro USB cable (not included) and insert the USB end in to a power source, such as a PC, power bank or solar panel charger. The module has a built-in LED which changes from red to blue when charging is complete.

The kit includes Nitecore's MPB21 magnetic power bank module which turns the 21700 battery into an incredible compact battery pack. Featuring a USB port, the module combined with the battery can recharge your electronic devices when you are on the go. 

The Intelligent Battery System has a range of protective safeguards, including over-current protection, reverse polarity protection, over-charge protection and over-voltage protection.

ML21 Magnetic Light
  • Brightness: 80 lumens
  • CRI: ≥90
  • Colour Temperature: 4000-4500K
  • Runtime: 19 hrs
  • Beam Diameter: 12 meters
  • Peak Beam Intensity: 9 cd
  • Diameter: 22 mm / 0.87"
  • Height: 53.3 mm / 2.1"
  • Weight: 11 g / 0.39 oz.

MC21 Magnetic Charger

  • Input: 5V - 1A
  • Output: 4.2V - 1A (max)
  • Diameter: 22 mm / 0.87"
  • Height: 9.8 mm / 0.39"
  • Weight: 6.5 g / 0.23 oz.

MPB21 Magnetic Power Bank

  • Input: 5V - 2A (max)
  • Output Voltage: 4.2V ± 1% (battery)
    5V ± 5% (USB)
  • Output Current: 2A (max)
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