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48V Battery BankĪ 48 volt golf cart battery bank wired in a series circuit is also very common in this industry. The power supplied to the controller or inverter is most commonly supplied from a golf cart battery bank using individual batteries wired in series to provide a higher usable voltage. Further, if a battery cable connecting the individual batteries breaks or is disconnected, the circuit is not complete and will not allow the golf cart to move due to low voltage.įor the purpose of this discussion, it is irrelevant if your golf cart has a DC or AC power system, a series wound motor or a separately excited version. If you have a single bad battery, your golf cart may not work due to low overall voltage of the bank due to the bad battery. In a series circuit, such as our battery bank example, every battery or component within the circuit must function properly for the circuit to work. Even though their combined voltage is now equivalent to 36 volts, the current or amperage through the batteries which comprise the bank is unchanged. In this example, your reading should equal 36 volts (6×6 = 36).Īs previously mentioned, when wired in series, the batteries combine their voltage to effectively make a higher voltage battery bank. If connected properly in a series circuit as shown, you should be able to test across the battery bank main positive and main negative terminals with a voltmeter and get a reading equal to the sum of each battery. Connect negative to positive all the way throughout the circuit until you arrive at the main negative. Negative is then connected to the positive on the next battery. Positive on this battery will be the main positive for the entire battery bank. In which case, the top right battery in our illustration represents the front passenger’s side battery. The top of this illustration is oriented to face the front of the golf cart.
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This battery bank wiring configuration shown below is very commonly used in the E-Z-GO TXT and many other vehicles. For this example, start with the battery bank main positive to connect six 6 volt batteries in series to form a 36 volt bank. To connect six 6 volt batteries together in series, start with the main positive or negative of the battery bank. Parallel wiring of a golf cart battery bank is not very common.įor the purpose of golf cart battery bank wiring in a series circuit, the dislike terminals are connected in order. Likewise, the total current is the sum of the currents through each component. In a parallel circuit, the voltage across each of the components is the same. Also, the voltage across the circuit is the sum of the voltages across each component. In a series circuit, the current through each of the batteries is the same. Two simple statements govern the rules for series versus parallel battery bank wiring. If you are unsure about making power connections, please stop and call trained golf cart professionals before proceeding. Remove all rings or jewelry from your hands and arms, and use insulated tools if possible. Please always exercise the utmost caution when working with power circuits of this nature. If directly exposed to high current (amperage), it could cause serious injury or death. A common example is that six 6 volt batteries wired in a series circuit will act as a single 36 volt battery.īefore proceeding, know that battery banks in golf carts, at 36V / 48V, contain a significant amount of combined current.
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To wire in a series circuit means to connect multiple batteries so the battery bank acts as a single battery, but with the total sum of the voltages of each individual battery. The vast majority of golf cart battery bank wiring is done in a “series” circuit.