Nitecore 21700 Intelligent Battery System (MPB21 Kit): Quick Look

Nitecore have a useful little kit here with the 21700 i series battery, this is a custom cell which has both positive and negative connections on both ends. The cell can also be used in "normal" devices such as torches/flashlights.

Using a magnetic connection you can attach items to it. The MPB21 Kit comes with the ML21 Light/lantern which has an output of 80 lumens, and the MPB21 is the power bank module, turning the battery into an ultra compact power bank.

I look at this kit, show you how it works and what I think of it. There are some obvious advantages here (super compact size and you can simply get spare/replacement cells), it's small enough to carry with you anywhere or as an emergency power or light source. There are a few areas where I would make some adjustments, and I discuss this in the video.

Sample supplied via Nitecore for unbiased testing/review
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Details from the maker:

NITECORE MPB21 KIT At-A-Glance
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 power bank and can charge other electronics
Overcurrent protection, overcharge protection, reverse polarity protection

Included in the Box

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

3-in-1 Light, Battery & Charger Solution

Do you have a bug-out bag or an emergency kit? The NITECORE 21700 Intelligent Battery System is the perfect 3--in-1 light, battery and charger solution as an EDC item or a part of a survival kit. The kit comes with a NITECORE NL2150HPi 5000mAh rechargeable 21700 battery, a magnetic high CRI flashlight lantern ML21, and a magnetic dual function power charger MPB21. All of these items fit neatly packed in a hard-shell case, perfect for safe storage and everyday carry, or as an accessory for the NITECORE i4000R tactical flashlight.
A 5000mAh Power Bank

Snap the MPB21 charger onto the top of the NL2150HPi battery and turn it into a 5000mAh power bank to charge your phone or any of your electronic devices up to 2A current. Connect any power source to the MPB21’s micro USB port to charge the battery. This dual function battery charger weighs only 0.35 ounces and is smaller than your thumb.
High CRI Mini Lantern

Snap the ML21 onto the top of the battery and turn it into a mini flashlight lantern, which provides 80 lumen of light great for outdoor activities like camping, reading, or signalling for up to 19 hours. Reminiscent of the NITECORE LA10 lantern, this little light module weighs only 0.39 ounces and provides a 90 high CRI soft light, very similar to natural light. which provides sharp visuals while reducing eye strain. The tail stand capability allows your battery to double as a simple work light, perfect for any daily tasks.

#nitecore #camping #survivalgear #lantern #power

[MrBazReviews]

Or using the affiliate links to Amazon

[P-Ian]

I like that you mentioned the short circuit protection, and showed it not sparking and shorting. I was interested in just that :D

[abobader]

It's very good and useful.
you can use it as a light, charger, and spare battery.

[Robbie]

I have two of them i bought a few years ago, very good lights, great to have at home 👍🏻

[Aerox]

Clever product 🙂 I don't like the micro USB port though. It feels too outdated. I would probably buy this, but ONLY if they upgraded to USB-C.

[blewis]

Nice review. Could you provide links to the battery monitoring devices you demonstrated with in the review? Thanks

[muha_pk]

This Nitecore adapter supports the other 21700 batteries ? or we need only this spetial 12700 battary ?

[JangKevin]

Want to know the temperature when you using it as a light and power bank. Also, it do not have any protect shell does anyone willing to risk if the battery exploding?

[varun]

5000 mah battery shouldn't it have a discharge output close to 5000 ? How is 3200 decent ?

[youwilldisobey]

Mr Baz" your excellent" i absolutely enjoy your little forays into the world of Cell powered illuminatory devices, All the verybest for the Constant disturbance, namely -the Earths Current & on-going Mind Fu*kery" At least we can Light the path ahead, sorry couldnt help meself on that lame as pun, lol. Be good and thanks. B-b

[khaledaboizzat]

I dont buy nitecore products because of they still using micro usb that showes you that they prefer to save 50 cents per unit instead of giving us usb-c

[sandwicholson]

Type A and micro? 😞 That's a deal-breaker for me. Is there a Type C version available?

[alpinab]

the thrunite ts2 blows this out the water while being cheaper . go for the olight if anyone is considering this nitecore because of the micro usb, if people stop buying the old micro usb devices eventually companies might get the message, but even the micro usb aside the thrunite is way better than this

[nawwk]

The year is 2023, and Nitecore is still using micro-usb instead of usb-c.
The item was on my shopping cart and was totally buying this until i saw the micro-usb nonsense.
i immediately removed from my cart and delete this crap product.

[matthoward]

NOT a good value in the US. Thrunite has had a similar option for awhile that was $20- when it came out, and now floats between $25 and 30-,