installing fans, lights, radios, or other electrical accessories on your golf
cart, it is necessary to know the voltage of your system. When you know the
voltage, your accessories can be correctly wired.
Gas Golf Carts
All gas golf
carts have 12 volt batteries, so by simply connecting to the positive and
negative terminals, you have the correct amount of voltage for any 12 volt
Electric Golf Carts
carts will be either 36 volt or 48 volt systems. Typically, golf carts have a
quantity of 6 batteries. If they are 6 volt batteries you have a 36 volt
system, and if you have 8 volt batteries you have a 48 volt system. But, how
can you tell if a battery is 6 volt or 8 volt?
the number of cells in your batteries! Each cell is 2 volts and has a filling
hole for water. Accordingly, if you have 3 cells (or filling holes) times 2
volts per cell, you have a 6 volt battery. If you have 4 cells (or filling
holes) times 2 volts per cell, you have an 8 volt battery.
Cells = 6 Volts
4 Cells = 8 Volts
know the voltage of your individual batteries, simply count the number of
batteries and you have the system voltage!
6 Batteries with 3 Cells
each = 36 Volts
6 Batteries with 4 Cells
each - 48 Volts
Installing 12 volt Accessories in Electric Golf Carts
various options for wiring 12 volt electrical accessories on your electric golf
cart. Your options also vary upon having a 36 volt system or a 48 volt system.
36 volt Systems
With a 36
volt system, 2 batteries can be utilized to create the 12 volts needed to power
your accessories. With a voltage tester, locate a positive and negative
terminal on two adjacent batteries that will provide 12 volts. Although this
option of wiring your accessories will work, be aware that the two batteries
providing the power to your accessory will have a tendency to wear out quicker.
When the batteries eventually begin to fail, these two batteries will most
likely be the ones failing sooner.
48 volt Systems
One 8 volt
battery is not sufficient to power a 12 volt accessory. And, using two 8 volt
batteries (16 volts) will provide too much power to your accessory. This option
will sometimes work temporarily but your accessory will typically burn out from
excessive voltage. This situation makes it necessary to install a voltage
above, there can be problems associated with installing accessories utilizing
only two batteries from your six battery pack. The answer to the problem is to
draw from all six of your batteries. Of course, this gives you 36 or 48 volts,
which is too much for any accessories. However, a voltage reducer effectively
reduces the voltage from your whole battery pack down to 12 volts.