Immediately after replacing the Lithium battery you must cycle the radio ON then OFF. Failure to follow this procedure will result in premature failure of the battery. If the power is not cycled ON then OFF the microprocessor will immediately begin drawing approximately 1 mA of power from the Lithium battery, resulting in poor battery life.
When the battery is replaced we recommend the insulation sheet also be changed. Part numbers for the battery and insulation sheet follow.
Qty Description Kenwood Part No. Circuit description
1 Lithium battery W09-0515-05 BA1
1 Insulating sheet F20-0521-04 --
Caution: This modification requires soldering equipment rated for CMOS type circuits. It also requires familiarity with surface mount soldering techniques. If you do not have the proper equipment or knowledge do not attempt this modification yourself. Seek qualified assistance.
Time required for this modification is 15 minutes or less.