Review on DEWALT 20V ⚡️ MAX Battery Charger (Model DCB115) by Derrick Villarreal

This is the latest (as of 2016) charger for all Dewalt 12v and 20v Li-ion batteries including DB200, DB201, DB202, DB203, DB204 and DB205 , but will not charge his old nickel-cadmium batteries. As an engineer, I was curious: it draws less than 1mA with no battery inserted (actually less than 250uA, which is the limit of my DMM), meaning you don't waste appreciable current by leaving it plugged in all the time; This is not an energy vampire. It uses a switched-mode power supply, making it as energy-efficient as a charger can get - about 85% of the line's energy is converted into charging energy. That means it doesn't lose a lot of energy through heat, allowing the charger to remain lightweight and compact. Well made device.