J&J Amusements Bumper Boat 2014 Service Manual page 79

2-11
BATTERY-FILL KIT (Electric only)
General information ..................................................2-11
Battery-Full kit installation .........................................2-12
The battery filling system allows easy top-off of the battery water level from the outside of the boat. Simply attach the
battery fill squeeze bulb (J&J#2-70-A0021C) to the access port on the back of the boat top to fill all the batteries to
equal levels.