XTAR PB2SL V2 USB C Battery Charger Not Included Battery -Black Color

I really like this battery bank. I like that the batteries are removable / replaceable with the standard 18650 batteries that fit in other items I have like flashlights. I can carry more capacity by just having more batteries to insert. I can use this to charge an 18650 for the flashlight by swapping them around. I can charge this with a portable USB-C solar panel, or in the car or an AC cube.What I wish they would improve is the durability, especially the lid. I drop it and the magnet attached battery compartment lid pops off. I like the magnet. Its slick and simple, but this is something I carry in a pack or pocket and I just drop it once in a while. The magnet ALSO pops out and I have glued it back in several times with epoxy or cyanoacrylate, and it just doesn't stay. A hit still pops the lid and the magnet goes too. Thankfully I haven't lost that tiny magnet yet. I don't hate it, but hopping they read this and maybe make a slightly better lid or a whole new rugged tested version. I think they could make something like this that uses their XTAR Lithium AA/ AAA 1.5 batteries, as a charger AND as a portable bank for charging other electronics. I would sure buy one.I think this an unknown gem for people who like to be prepared.

I ran into this XTAR one day looking for something completely unrelated. Decided to give it a shot, and fell in love immediately. For a few reasons, but mostly because after using it just for a day or two, it was obvious that the designers of this, took a lot of care, and did the research in order to make it remarkable, and it really is.So, full disclosure, I am a vaper. My daily device does use replaceable 18650 Lithium batteries. It can be annoying to try to make sure you have a fully charged one before I set off for the day in the morning. Hence why I had been looking for a device to solve that for me. This is fantastic battery charger, and if you use it just as that, you will be satisfied, it does everything that a standard charger will do. with all the latest safety features so it knocks the battery charger side of things out of the park in my opinion.When it is charging batteries, the info display stays on, not for 30 seconds, or 60, but until its unplugged. It supports fast charging (9v &12v QC) and lets you know when that fast charging is active with the voltage read out. It supports pretty much all sizes of lithium cells I know of other than maybe the extremely short side of the spectrum. It even protects the circuitry from reverse polarity.If you are like me and have the need to charge all kinds of stuff on the go, this is highly recommended.

I've got a bunch of 18650 batteries now that I've learned how to safely tear them out of various devices (ie., a laptop that doesn't work anymore with a removable battery? Free batteries!!). This makes this device perfect for utilizing those batteries!Now, my gripes: I have a Zanflare charger that gives me the right voltages of the batteries, and this charger will not show the correct voltage of the battery. It does seem to measure it correctly because it does display the correct %.For example, plugging this cell into my Zanflare tells me that the voltage is 3.82v. My understanding is that many lithium ion batteries are fully charged at 4.2v, and the XTAR does tell me that the battery is at 61%. It does seem to measure the correct amperage when charging the battery via USB-C.My second gripe is I wish the cover's magnets were stronger. The magnet feature is a super nice touch and I really like it, but for example if I allow my kids to use the battery pack, those batteries will be lost. I'd have to tape it shut but then I have tape all over my nice battery charger.I also wish I could give this a 3.5 rating. I'm not happy enough with it to give it 4 stars, but not unhappy enough to give a 3. I guess I'll leave it at a 4 since many vendors do work hard for ratings since inaccurate bad ratings can kill a business, but hopefully this review will help some potential buyers make an informed decision.

I have many of these packs all using 21700 batteries and I love them. Understanding how to high power charge these is important. Usb C to C cables and a high wattage charger that has usb C output. These can also be solar charged if you are careful and know about voltage and amperage of small panels. Typically I use a 7watt monocrystaline panel around 6v 1 A with a 5521 male power plug with adaptor to usb C. Great for charging when AC power is interrupted.

So I got my hands on two of these units, One I received as a christmas gift and the other I purchased because at first I loved the idea and wanted to have a second unit. After having these for more than a week or two theyve become essentially useless or standard 5v @1-1.5amp chargers. Essentially the issue is that the controller seems to have issues deciding if it wants to take the charge or supply the charge, and the annoyance is the single button doesnt allow you to manually control it either. When I try and charge a device that supports 12v charging (PD/QC3+) it never supplies the power, it initially will charge 12v at maybe 1 amp but after a few seconds it drops dramatically to like .1 amps or lower. Ive tested this across many devices such as my note 9, s8 plus, switch, 2 laptops (that support PD) etc.I do not recommend this for anyone as they seem to have the right idea of a unique charger but completely fail at creating a quality product.