BatteryMINDerModel 483CEC1 48V 3 AMP Charger/Maintainer/Desulfator for Golf Carts, Fork and Scissor Lifts

I have 4 12v golf cart batteries how many y connectors do i need?

states for up to 6 batteries. a 48v bank of 6v are 8 batteries, will this work? Need to overwinter an electric truck in the mts of Colorado....

Will I have to check my battery water level more often if using this product?

How long is the cord that goes from the charger to the battery? Is an extension available?