Xtar has an update for the original PB2 18650 charger and powerbank. As the name implices (PB2C) the new model adds USB-C but only for charging. The XTar PB2 lineup is a little confusing in naming. The Larger PBS can fit larger 21700 batteries, charge and discharge via USB-C and has a screen. The new PB2S is smaller in size, can only take 18650 batteries, and doesn’t have a screen. Thanks to Xtar for sending this to me to take a look at and review.
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Packaging & Accessories
The Xtar PB2C packaging is very simple, it’s a clear plastic shell with a cardboard back with most of the information on the rear of the package. There is a simple multi language manual included in the package. Inside you get the PB2C itself and a USB-A(3) to USB-C cable.
The Xtar PB2C is made from hard plastic with some texture. The body and color of mine happens to be a sky blue with black accents. It’s a great look in my opinion and feels well built. The lid is held on with magnets at the center that are reasonably strong. There are nail nicks to make removal easier. On the inside you have the input and output specs as well as the units model and serial numbers.
Inside the cells are held in place with pretty robust springs on one end and tabs on the other. This allows all 18650’s from flat top unprotected cells to protected button tops to fit. There is a ribbon to make removal easier which is a nice. Polarity and charging rates are molded into the base too.
The only indicators that’s available are a series of 4 small white LED at the top, that are used for charge/discharge status, on/off status, and any errors (All blinking). Four lights building one by one means it’s charging, if all 4 lights are on charging is done.
Size and Weight
The PB2C is smaller then it’s larger more advanced PB2S brother because it only fits 18650 batteries and doesn’t have a display. I measured the length at 109mm, width at 50mm and depth at 24mm. Weight with 2 18650 batteries came in at 150g.
As a Powerbank
As a Powerbank the Xtar PB2C is a little disappointing because it only works via the USB-A slot. The USB-C connector is an input only. Then I remember the price here, about $12 and given that it comes with a USB-A to USB-C cable, I will give it a pass. As much as I love USB-C it’s still not as universal especially world wide as the Western World thinks it is. USB-A is the most compatible with the largest market yet.
I tested the PB2C with some 2600mAh Xtar batteries and was able to easily discharge at 2.25A for 1 hour 34 minutes. The voltage did sag some when running this hard, and wasn’t quite as stable as you see from most of my Anker and Aukey power banks but it was fine with an average voltage of 4.89V.. Capacity came in at a measured 3115mAh, which seems a little low but is roughly 80% efficiency assuming the labels on the batteries are correct. Higher capacity batteries will yield more capacity to recharge your devices. LVP on the cells kicked in at 3.23V and 3.40V. The powerbank function can be used while the charger is charging batteries, with it primarily powering the device off the USB input rather then discharging the batteries.
As a Charger
As a charger the Xtar PB2C combines all the features from Xtar that are proven and well respected such as zero volt activation, reverse polarity protection, safe charging rates, over discharge protection, etc. If one battery is inserted, into the 2 slot charger, charging speed will be 1A, if 2 batteries are installed it will be upto 2A. If the batteries inserted have different power levels, the lower voltage cell will charge first till they are equal and then it will charge both batteries.
In my testing I charged 2 2600mAh cells to full in 3 hours and 7 minutes mostly at 1.9A of speed. Terminal voltage on both cells was 4.17V which is good. I had no trouble fitting protected, unprotected, and all manner of button top cells on the charger. Your luck may vary with custom cells from brands like Olight.
- Very Affordable
- Can take protected or unprotected 18650’s
- Blue and Orange Color Options
- USB-C is only used for charging here, it would be better if it was bidirectional.
This is a nice little battery charger and powerbank combination if all you need to charge are 18650 sized batteries. It has most cases for those covered. It’s a nice update to see USB-C included but I wish it was in and out instead of just used for input power only. That said the included USB-A to C cable does help with this, and for the price I can’t fault it much. Overall this is a good basic charger and powerbank combo from Xtar at a very affordable price.
Full Image Gallery https://imgur.com/a/2ovOuC0
Find more on the Xtar PB2C at http://www.xtar.cc/product/XTAR-PB2C-Charger-131.html
AliExpress Global – http://bit.ly/2IUcV3l