neat features, but dont throw it around
April 9, 2021
charges fast, screen tells you the important stuff. OH it can be used to charge devices off your battery, instead of the other way around. but the plastic over the lcd screen is super soft. finger nails will render the screen difficult/impossible to read
September 21, 2020
I was looking for a small single cell charger for my edc pack. This one fits the bill perfectly and not only charges Li-Ion, but NiMh as well. Oh, and the volt readout and ability to act as a power source with a charged cell is just icing on the cake.
Just what I needed.
May 22, 2020
Exactly what I was looking for, an excellent product.
Great little charger.
March 3, 2020
I bought 4 of these for charging the new 21700 battery. Used them on the Klarus battery and the jet beam battery. works great. I had bought a Nitcore new charger that said it worked for the 21700 battery but they did not even come close to fitting the charger.
Nice single bank charger
January 25, 2020
Nice travel charger. Screen is easy to read and diagnostics seem accurate. Power bank features also works well. Seems very durable
Nice "Little" charger
December 31, 2019
Nice little charger (even though it does charge up to 21700's). Drawback - one at a time - however good vehicle charger for smaller single cell lites. Fast charging and would buy again!
August 27, 2019
When I could not find another XTAR SP1 like I already had, I decided to try the KlarusK1X. Boy am I glad I did. The mini full color LCD screen is so much easier to read and check the status. I am red-green colorblind, so seeing the red charging lite change to green is very difficult. With the Klarus, you get so much more information, How many volts are "packed" into the battery as it charges, and the charge rate, and the fillup counter is a really nice touch, as it nears full charge, the charging bars gradually stop blinking and show full until it is all charged, The visual display is just as intuitive as you will find anywhere. Being able to also use it as a battery bank and reverse the flow into your handheld device like a cell phone is just a bonus.
Very Compact and Useful
July 19, 2019
Love the versatility and compactness of this product. Charges most batteries as well as useful to take charged batteries and use as a power bank to charge other devices while having a small footprint. Digital display lets you know precise charge of your batteries too.
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