Loading the lithium-ion battery is quickest with the 9100 being turned off. This way, 80% capacity is achieved in less than two hours with the standard battery (less than four hours with the high-capacity battery). The charging current is then reduced to go easy with the battery and thus reach a high battery lifetime. If the 9100 is switched on, only one third of the maximum loading current is applied. Consequently, the time to load the battery is extended to a factor of three.
