Auriol 4-LD5832-1-2 Bedienungsanleitung Seite 11

Non-rechargeable batteries must not be
   
recharged.
Different battery types or new and used
   
batteries must not be used together!
Do not short-circuit the supply terminals.
   
Empty batteries / rechargeable batteries must
   
be removed from the device and safely
disposed of (see Disposal of batteries)!
If the device is stored unused for a prolonged
   
period of time, the batteries/rechargeable
batteries should be removed.