Nitecore UMS4 Battery Charger
Tl;dr: New version of nitecore UMS4 has an insignificant problem, energy saving mode won't activated. The screen won't go dim after 3minutes as stated in the manual. The negative pole (silver plate) different design is intended, only the older version has the "double tip points" design at the silver plate (negative pole). The day I received my order, Nitecore charger UMS4 from a seller in shopee.my, my experience with the purchase was like taking a rollercoaster. Reasons: - the product received is not look the same as advertised in the official Nitecore website . - the well-known electrical device reviewer has the UMS4 technical review published earlier, the author has attachment of the UMS4 model which clearly showing the silver negative pole has different design. I was freaked out as I have confirmed with the dealer to ensure the genuineness of the product. 4 flat design negative pole Nitecore is a very popular brand for many kind of battery