Some Philips trimmers run on disposable AA batteries. To charge these devices, you need to ensure that the disposable batteries have not run out. If your trimmer does not switch on or runs slower than before, it is time to replace the batteries.
Only use the disposable batteries as specified in your user manual. Do not mix different types of batteries or new and used batteries. When putting in new batteries, make sure the + and - poles of the battery point in the right direction.
If the problem continues, please contact us.