Remove the old battery, carefully install the new battery on the battery box, tighten the screws, and then connect the wires of the new battery. For SONY D-Z555 D-555，D-150，D-250，D-99/90， D-88/82， D-303，D-515 DCP-150，DCP-100 ，aiwa XP6，XP7 AZ6819，AZ6829，AZ6808CD-10.
