18 User Guide for the Platinum Series Sound ProcessorCAUTION: The charger is only designed for use with the processor lithium ionrechargeable batteries provided by AB. Do not attempt to chargeoff-the-shelf batteries used inside the AA battery compartment.The rechargeable batteries and charger contacts should be kept freefrom dirt and dust. Dirty contacts can result in charger malfunction.Gently clean the contacts with a hearing aid brush or dry cottonswab being careful not to bend the contact pins. This should be doneat least once a month.If the charger is dropped, inspect the device for evidence of damageor cracking. If any evidence of damage is seen, the battery chargershould be replaced. Prior to use, you should inspect the chargerpower cord to ensure that it is not frayed or damaged and that theplug is not broken. If your power cord appears to be damaged, itshould be replaced.Using the Car Charger AdapterAfter inserting the car adapter (AB-5620) into your car’s power outlet, connect thecable from the car adapter to the charger.Figure 15: Car Charger Adapter.