Which 21700 Batteries Are In A Nitecore NPB2 Waterproof Power Bank?

[JAS]

I while back I starting looking at an additional source of power for my Milwaukee M12 electric heated hoodie. Rather than buy additional OEM Milwaukee batteries, I decided to try a power bank. I ended up buying two Anker PowerCore Speed 10000 QC power banks. One works well and the other one does not. So, I have returned the one that did not work very well.

Now, I am considering buying a Nitecore NPB2 waterproof power bank. Although it is more expensive than the Anker PowerCore Speed 10000 QC power banks, it may be a bit more versatile.

Anyway, it states that it is "equipped with 2 x 5,000mAh 21700 Li-ion batteries." When I look on the Nitecore.com website and Battery Junction websites, there are several different 21700 5000mAh batteries. The model numbers I have seen so far are as follows:

Nitecore NL2150HPR

Nitecore NL2150R

Nitecore NL2150HP

Nitecore NL2150

Nirecore NL2150i

Nitecore NL2150HPi

How can I determine which batteries the Nitecore NPB2 uses? What are the differences in the batteries above?

As near as I can tell, the Nitecore NPB2 contains the NL2150.

Can anybody here confirm that?

NPB2

flashlight.nitecore.com

 

[fuyume]

I don't know why it really matters. The batteries are not removable and not replaceable.

 

[Hooked on Fenix]

At the power required for that battery pack, they could put two batteries rated at only 5 amps capacity and discharge rate(vs. 8 or 15 amps discharge rate) and you wouldn't be able to tell the difference so it doesn't matter. Some of their cells are rated at 4, 4.5, or 5 amps. Some are rated at 5, 8, and 15 amp discharge rate. Then they have their i series batteries with positive and negative terminals on one side. They also have usb rechargeable cells and cold weather rated cells. HP means high power (probably 15 amp rated). R means usb rechargeable. i means i series (positive and negative terminals at positive end). 21 is for the size 21700, 50 is for the capacity, 5000 mAh. You can figure it out from there.

 

[JAS]

Thank you for the replies.

I was thinking that they were removable/replaceable, but now that I no they are not, I will look at something else.

 

[Hooked on Fenix]

Try an Xtar PB2S battery charger and power bank with your choice of a couple unprotected 21700s. $17 for the charger and $5-$10 each for the batteries. (18650batterystore.com) I use 2 5 amp Samsungs in mine. Does not fit protected cells. If you need the batteries in a light that only takes button top cells, put a harbor freight rare earth magnet on the positive end.

 

[michaex]

I'm curious. What about battery venting in a sealed design? Non-issue since both input and output are controlled?