This appliance contains NiMH batteries that have to be charged longer the first time (or after a long period of disuse) to reach their full capacity.
If you charge it roughly 3 times longer than the normal charging time, this will optimize the battery life of your shaver.
For optimal performance, only charge the shaver when the battery is low.
See also: 'How long does this shaver need to be charged?' for the normal charging time of your shaver.
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