The charger GAX 18V-30 Professional from Bosch is a true all-rounder: A dual Bay-, a multi-volt and USB fast charger, all in one. The two loading bays to 10.8 / 12 Volt batteries and 14.4 / 18 Volt batteries can be recharged. The very compact quick charger charges sequentially with 3A charging current one battery at a time. The additional integrated USB charger provides 2.1A charging current for smartphones or tablet devices. If 80% of the charge capacity is reached, a display indicates that the quick charging mode was terminated.