Door dituttononstop03/10/2017Really Perfect! I use almost every day! In 3 months no problem! I use it with these EXCELLENT 18650 batteries, bought here: https://www.banggood.com/4PCS-MECO-3_7v-4000mAh-Protected-Rechargeable-18650-Li-ion-Battery-p-992723.html?p=D3040313149142015035
Door Rumen Petrov28/09/2020Very well made, works as advertised! With a quality, thick power cable USB 3.0.
One small remark: the AAA Ni-MH and D-sized batteries will need a little adjustment to fit properly in the slots. One is too small, the other is too big for the "+" side of the slots. If the "+" metal plate was made just 2mm longer, it wouldn't be a problem at all!
The D-sized battery I used in the pictures is only for example, as I don't have a 32650 Li-Ion one.
Overall: very good, I would say excellent price/quality