Review on The Efest SLIM K2 Intelligent Charger: Fast and Efficient Charging for Your Devices by Billy Balwin

I got this charger because my current Eastshine S2 charger (also bought from Revain) doesn't charge 20700 batteries. It charges 20700 batteries well, but the product images will make you 'think' that the charge indicator shows 'levels', which it doesn't. 'LED' calibration lines are just a template/ Display designed to 'look' like charge level lines that change as the battery charges. That's not the point, it's a regular white bulb under the plate for charging and a regular blue bulb for Charging.Cheap and does what I need, but what a trick for a charging lamp!