The Comfort Mini Battery charger from Ansmann includes the ""PERFECT 7"" charge technology that ensures all batteries charge promptly. The seven-step process allows the full performance of the rechargeable batteries. Ansmann has done extensive research and concentrated on various parameters to get the very best from the Comfort Mini. The quick charger comes with a USB input for up to two NiMH rechargeable batteries for sizes AA or AAA. The charger is mobile and adaptable for various situations. It can connect via a power bank or a USB port. A simple 'insert and go' process with a bright display for swift operation. Additionally, there is a three colour led display to make it very simple to read the cell status. Each cell will be individually monitored during the charging process and separately charged to its maximum capacity - comes with two AA 2100 batteries.