Bar End Mirror for the Golden Technologies Companion I (GC221) and Companion II (GC321, GC421) Mobility Scooter (MBA-CMIRROR) PG Drives Joystick Keypads The battery pack is more

The battery pack is more than simply a battery in a black plastic box

and may also be known as a Printed Circuit Board (PCB) and is essentially a scooter controller in its function but without the external metal case of a "control module"

Currie Technologies: BA-PK24-350

Drive Medical: S12-051-00100

you can't do better than to start it up with the power from this 12 volt YT12A-BS replacement dry charged AGM scooter

Bar End Mirror for the Golden Technologies Companion I (GC221) and Companion II (GC321, GC421) Mobility Scooter (MBA-CMIRROR) PG Drives Joystick Keypads The battery pack is moreWhile this bar end mirror will fit all mobility scooters with a standard 7 8" handlebar, this mirror is provided by Golden for the Golden Technologies Companion I (GC221) and Companion II (GC321, GC421). A clever design, the rubber bar end fits like a plug into the end of the handlebar opening, then a screw is turned which squeezes the plug fatter; making for a tight fit. These mirrors have an almost universal application; not only the Golden