When setting up a charging system it is important to use the appropriate wire size, batteries, and battery charger.
This is a list of batteries and the chargers that should be used.
FS1220 Group 24,27,31
FS1240 6 volt 4D, 8D
FS1280 6 volt 4D, 8D
FS2420 Group 24,27,31
FS2440 4D,8D
FS3220 8 volt
FS3240 8 volt
FS3620 6 volt
FS3640 6 volt
NOTE: THIS CHART IS ONLY MEANT AS A GUIDE FOR CHOSING CHARGER AND BATTERY SIZES. A QUALIFIED ELECTRICIAN SHOULD BE CONSULTED WHEN INSTALLING BATTERIES TO A NEW CHARGING SYSTEM.