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Nitecore 21700 Intelligent Battery System


The 3-in-1 light, battery, and charger solution is perfect for daily carry or as a part of a survival kit. The set includes a 5000mAh rechargeable NITECORE NL2150HPi 21700 battery, the ML21 magnetic high-CRI flashlight lantern, and the MPB21 magnetic dual-function power charger.

Availability: 8 in stock

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Product Description

Nitecore 21700 Intelligent Battery System

3-in-1 Light, Battery, and Charger Solution The Nitecore 21700 Intelligent Battery System is an innovative set-up that includes a 21700 NL2150HPi high-performance i-series li-ion battery, an ML21 magnetic light, and an MPB21 magnetic power bank. It is intended to provide consistent power and light while on your adventures without requiring a large amount of equipment. All of these devices fit neatly inside a hardshell case and can be safely stored, easily carried, or used as an accessory to the NITECORE i4000R tactical flashlight.

To change the NL2150HPi battery into a 5000mAh power bank for charging your phone or other electronic devices with up to 2A current, just snap the MPB21 charger onto the top of the battery. To charge the battery on the MPB21, connect any power source to the micro USB port. This dual-purpose battery charger is smaller than your thumb and weighs only 9.9 g.

The ML21 can be connected to the top of the battery to change it into a mini flashlight lantern that produces 80 lumens of light for up to 19 hours, making it perfect for outdoor activities like camping, reading, or signaling. This little light module, which is reminiscent of the NITECORE LA10 lantern, weighs just 11 g and produces a soft light with a CRI of >90, which is extremely similar to natural light. It offers clear sight while minimizing eye strain. With the tail stand feature, your batteries can function as a simple work light, making it ideal for any daily activities.

  • Intelligent power solution for 5000mAh NL2150HPi
  • 80 lumen ML21 magnetic high CRI light
  • MPB21 magnetic dual function power module
  • MPB21 can directly USB charge the connected HPi battery
  • MPB21 acts as a powerbank and can charge other electronics
  • Overcurrent protection, overcharge protection, reverse polarity protection



  • NL2150HPi battery
  • ML21 magnetic light
  • MPB21 magnetic power bank
  • Organizer case

Tech Specs

  • ML21 Magnetic Light
    Brightness: 80 Lumens
    CRI: ≥90
    Color Temperature: 4000-4500K
    Runtime: 19h
    Beam Diameter: 12m
    Peak Beam Intensity: 9cd
    Diameter: 22 mm / 0.87″
    Height: 53.3 mm / 2.1″
    Weight: 11 g / 0.39 oz.
  • 21700 i Series Battery
    Model: NL2150HPi
    Capacity: 5000mAh
    Voltage: 3.6V
    Discharge: 15A
  • MPB21 Magnetic Power Bank
    Input: 5V⎓2A (MAX)
    Output Voltage: 4.2V±1% (Battery) / 5V±5% (USB)
    Output Current: 2A (MAX)




Nitecore is a global specialist manufacturer of illumination and electronic tools. Their high-performance and durable equipment is designed for a variety of activities, including hiking, camping, hunting, and law enforcement. The brand was founded in 2007 and has since gained a strong reputation among consumers.

Nitecore is the only flashlight brand to have won all four internationally prestigious product design awards. These include the grand slam award winner of the American International Design Excellence Awards (IDEA), the German iF Design Award, the Red Dot Design Award, and the Japanese G-Mark (Good Design). The brand has also won gold awards for the ISPO Award and Outstanding Outdoor, which are globally recognized in the outdoor industry.

With over 100 technology patents, Nitecore's lights and chargers are completely unique and cannot be replicated by competitors. Their product lines specialize in tactical flashlights, outdoor lighting equipment, and power solutions designed for law enforcement and military departments, industrial corporations, and outdoor enthusiasts worldwide. Nitecore represents quality, innovation, and reliability.