One of the most important parts of your electric golf cart is your batteries. You should be checking and maintaining your batteries at least once a month depending upon how often the cart is used.
Battery technologies makes watering batteries easier and more convenient.
Once you have installed your system onto your batteries just fill your watering jug with distilled water. Then attach it to the connector, set the jug up, it will then fill all your batteries to the appropriate level. The system will stop filling when that batteries are complete.