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Auris 20/02/2021
Delivered after two weeks from Czech Republic to Lithuania. Package arrived safely, thank Banggood team. Very nice and handy charger from one of the best manufacturers for reasonable price, small and with sufficient amount of produced current. Micro USB cable is 70 cm, smooth springs. It is worth reading before you buy: https://lygte-info.dk/review/Review%20Charger%20Nitecore%20UM2%20UK.html Disadvantages: - A noise of high frequency during a charge. - No longer showing battery internal resistance. It is available just in UM4 model. Maybe it can be activated by acknowledged person during disassembly/some soldering, etc. - There is no automatic current selection as stated in features of this unit per manufacturer. It is neither based on internal resistance or battery size based on length. It doesn’t matter which battery you would insert (AAA NiMH, 21700 LiIon), charger will still select 500 mA as starting point for 5V source. For 9V you have to step down the current for “little” batteries. - Even there is no option for this charger, it would be nice to see a discharge feature, especially storage mode if you decide to leave batteries for longer period of no use. - Once battery is charged and cut off, screen doesn’t show actual reading/voltmeter, just what was at the end. If you possibly take out battery some hours after charging, the actual reading could be less due a littler drain by charger. Advantages: + Very simple and user friendly menu/screen size. Fast settings change. + Current of 0.1 A step increase. + Activation of over discharged batteries (confirmed by myself as well). + 21700/26700 can be inserted even with PCB. There are just a few chargers in the market that can do this. Thank you
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Auris No.Charger can't discharge, therefore it is not able to use discharge-charge cycle to measure capacity. It can't even predict approximate capacity as there is no longer internal capacitance in UM2 model.

2021-02-20 04:52:57 Helpful (0)
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