[. . . ] Do not expose the device to rain or use it in a damp or wet environment. Never cover the device's ventilation slots when it is switched on. Due to the charging current, only batteries with appropriate capacities may be charged: Ni-MH batteries: - AA min. Should an attempt be made to charge batteries with significantly lower capacities, the batteries could be destroyed. [. . . ] With the supplied vehicle-adapter u you can also connect the Rapid Battery Charger to the 12-V cigar lighter socket of a vehicle or into the 12-V on-board power supply socket of a vehicle. Thereby, you simply use the vehicle-adapter u instead of the power adapter y. Use the Rapid Battery Charger exclusively with the supplied vehicle-adapter u. The use of other vehicle-adapters could irreparably damage the Rapid Battery Charger!Should a cigar lighter be inserted into the cigar-lighter socket: - Remove the cigar lighter. Remains of ash) is removed from the inside of the cigar lighter socket!Otherwise, it could lead to a malfunction in the operation of the Rapid Battery Charger with the vehicle-adapter u! Insert the low-tension plug of the vehicle-adapter u into the power adapter connection q of the Rapid Battery Charger. Under strong sunlight, and with a correspondingly heated vehicle interior, the Rapid Battery Charger could over-heat and be irreparably damaged. It is possible that the cigar-lighter only functions with a switched-on vehicle ignition. Onboard power sockets also function with a switched-off vehicle ignition: Only use the Rapid Battery Charger with the engine running. Otherwise, the vehicle battery could be completely discharged by the use of the Rapid Battery Charger!Due to the charging current, only batteries with appropriate capacities may be charged: Ni-MH batteries: - AA min. 600 mAh Should an attempt be made to charge batteries with significantly lower capacities, the batteries could be destroyed. Place the selector switch e into the position Ni-MH if you want to charge Ni-MH batteries. Place the selector switch e into the position Ni-Cd if you want to charge Ni-Cd batteries. This appliance is equipped with an individual shaft monitor, which allows it to charge 1 to 4 batteries of differing sizes (AA or AAA), capacity or charge condition. Ensure that the batteries are inserted into the charging slots in accordance with their polarities. The control lamp w does not glow: - The batteries have not been inserted correctly into the charging slots t. Unplug the AC adapter y from the mains power socket or the car adapter u from the cigar lighter socket and allow the batteries to cool down. Afterwards you can remove the charged batteries from the Rapid Battery Charger. Depending on the type, age and remaining charge in the batteries, the charging process can take various lengths of time. [. . . ] In the event of a warranty claim, please make contact by telephone with our Service Department. The warranty covers only claims for material and maufacturing defects, but not for transport damage, for wearing parts or for damage to fragile components, e. This product is for private use only and is not intended for commercial use. The warranty is void in the case of abusive and improper handling, use of force and internal tampering not carried out by our authorized service branch. [. . . ]