TDK A73 Wireless Boombox - Battery replacement instructions - Manual (Page 2)

Proper disposal of the old battery is essential from an environmental and safety point
of view. Please follow local regulations for proper disposal. Putting any battery
directly in the trash will harm the environment.
Do not incinerate.
Following the replacement, the new battery should be fully charged prior to usage.
Place the battery switch on the back of the A73 to the OFF position.
Connect the AC power adapter charging cable to the back DC In connector.
Allow to charge until the red charging LED on the front of the unit at the lower right of
the Power/Volume Control goes OFF.