Excellent product and it really helps my back when doing abdominal exercises. I also like the diagrams on the bottom showing different routines to mix up my workouts. Really great friendly customer service too! I highly recommend:-)

it would be 4 stars for how hot this one gets, but I've had this same model before, and it lasts forever. i lost my other one. most people use this for flash light battery's, but vapers, it works perfect for your vape battery's. charges fast, slow, shows all the information you don't need. good price as well.

Perfect for what I needed (coat closet), replacing a similar motion sensor light that kept chewing through batteries. What I like about this one is it's soft white light (not harsh bluish white), and it's easily rechargeable. It's so convenient how the light comes on automatically (don't have to hunt for a pull-string or wall switch).

Great! Nothing more nothing less!

I have been using Nitecore chargers for some time, I used the D2 to replace an aging I4. The digital readout is neat clean and intuitive, Works great, thanks eastshine