Left side behind the plastic cover
Remove the right cover below the fuel tank and you get to the battery.
Take off the seat
Follow the cable rearward from the starter. It connects to the battery.
Under the right side (as you sit on the bike) side cover.
It is directly to the left of the battery box on the right side of the bike.
it doesn't have one
The battery is under the driver's seat.
it is located between the rear fenders
it should be located somewhere on the frames, good luck ;)......
Under the driver's seat.
The Honda Rebel CBX450C was only built in 1986 & 87.
Follow the red battery cable down from the battery to the starter.