XTAR PB2S Blue(No Battery) PB2S NOT New Version PB2SL

Carry pre-charged individual 3.7V lithium 18650 batteries for near limitless portable charging.

This battery bank is very well made in the display shows the exact amount of power you have left. I really like the magnetic cover although I never dropped it or put it to the test.

I really like the versatility of this charger. First, it can accept 18650 cells, both protected and unprotected, as well as unprotected 21700 cells.This device serves two purposes:1) It will charge the batteries2) It can be used as a power bankWhen used to charge batteries, I find that it does a very good job of charging the batteries at a good brisk pace so that you will not need to wait forever for a full charge.As a power back, it can power two devices at the same time - one via a USB-A port, and another via USB-C. Note that the unit is charged via the USB-C connector.I also like the fact that it has a special mode for very low power draw devices. As an example, when charging a Bluetooth headset, some power banks will shut off because the headset draws so little power that the power bank thinks that the device is done charging. This mode prevents that from happening.In addition, the display shows a good deal of useful information.Finally, when used as a power bank, I like the fact that as you approach empty, you can simply pop out the batteries and drop in another set of charged batteries. This allows you to have virtually unlimited capacity based upon how many batteries you carry with you.The one negative, and why I gave it 4 stars rather than 5 is that out of 3 of these units that I have, one of them released the magic smoke very early in it's life. Even more concerning was the fact that I was not charging batteries or using it as a power bank. I simply dropped in a pair of batteries and seconds later got smoke.I fully realize that this may be a rare failure, but I do have to acknowledge that I had one unit die on me.

The product works as described with USB-A charging port but the USB-C port won't charge my Pixel 4a. It keeps cycling on and off. I will probably keep it but would have loved to have to fast charge feature work.

Works