The fully automatic 7-stage charging significantly maximizes the lifespan and performance of your batteries. The innovative charging method is based on the latest findings from battery research and takes into account a variety of individual parameters. Thanks to the compact design of the charger, it is convenient to take it along while traveling or to have it readily available during outdoor activities. In combination with a suitable power bank, the charger can also be operated completely mobile, making it very flexible to use. The charger can be connected not only via a power bank but also through any other USB port. It operates on the simple principle of inserting and starting. The clear status display allows for intuitive operation. With the easy-to-read 3-color LED display, checking the status of each cell is a breeze. The intelligent fast charger can charge up to 4 batteries of sizes AA and/or AAA. The batteries can be mixed and placed in any charging slot without regard to size or capacity. Each cell is monitored individually during the charging process and charged to its maximum capacity. Perfect-7 charging technology: Capacity quick test. Immediately after insertion, the capacity quick test determines the remaining charge of your battery and displays it on the LED panel for 5 seconds. The automatic detection of weak batteries prevents negative surprises. Gentle pre-charging. A weak or deeply discharged battery is pre-charged with lower current if necessary. Battery analysis: The battery behavior of the cell is analyzed and evaluated to determine whether it is still reliably usable or defective. Fast charging mode: The Comfort Mini quickly and simultaneously charges your compatible NiMH batteries with up to 800 mA in a controlled manner.