We have always needed to use 2 different chargers, one for our NiCads and another for our LiOns. This smart charger takes the place of both of our old chargers plus more. It will charge up to 4 batteries at a time. It automatically senses the battery types and adjusts accordingly. It has a digital screen which displays the charging level of each battery, voltage, battery types, charging rate. This will be used daily for keeping my 18650 high-drain vaping batteries, as well as keeping the NiCad batteries in the kids' toys topped off. Well made, works great! Screen is back-lit for easy reading.