I bought this charger to supplement an older, 2 bay Nitecore charger since the # of rechargeable batteries in my home has increased. In addition to the extra charging bays, this charger provides the internal resistance value of the battery in each bay as well as more typical info such as voltage, charging current and time on charge. The resistance reading may be a bit unsettling to some who do not understand the variance between cells but it can be used to aide in assessing cell health. Additionally, I like that this charger is powered via a USB cable such that you can use standard cell phone style chargers as well as solar chargers designed for your phone. I find that extremely handy if your an outdoorsman or lose power with no other backup.
Verified purchase: Yes | Condition: New
It functions as described on you tube. It would be nice if you could discharge batteries also.
Verified purchase: Yes | Condition: New
Best Charger i ever had! can charge everything between AAAA to 21700HPR batteries! And quickcharge too if you have a QC 3.0 UBS port. portable too with usb cable, you can charge a 21700 batterie with a powerbank connected to the UMS4.
Verified purchase: Yes | Condition: New
This will charge my 18650 and smaller, AAA and AA nimh batteries I can use it at home or on the trail with a power bank.
Verified purchase: Yes | Condition: New
Love this charger. Displays info about batteries health, charge state, etc. Really well made, feels heavy and materials are quality. I have several Nitecore products, and this charger is a testament to why! It even draws little current to operate, it charges batteries off of my solar panel. Can't go wrong. You will be happy.
Verified purchase: Yes | Condition: New
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