Golf Cart Battery Cables Exposed – Does Size Really Matter or Cheap Golf Carts ?
For gas powered carts, the cables need only be of sufficient size to operate the starter motor, which is only for a few seconds at a time. So that answer is no, the originally installed cables are plenty sufficient in size. For those of us who have the more plentiful, battery powered carts, Cheap Golf Carts in Midrand the answer is somewhat more complicated. The short answer for us is, yes and no, depending upon what we expect from the cart or if modifications to the motor or controller have been made.
If the cart is absolutely bone stock (all original with no upgrades) and is used primarily as originally intended around the local course, the standard 6 AWG (aka 6 gauge or #6) cables are perfectly fine. Wire (cable) size is measured by a standard called American Wire Gauge or AWG and relates to the diameter or cross sectional area of the copper conductor itself. The smaller the AWG number, the larger the diameter, and hence, larger current carrying capacity. For example, a 2 AWG cable is larger than a 4 AWG which is larger than a 6 AWG. Most cart manufacturers use 6 AWG cables. The finest cables we have found so far are made by MaxiLink.com, which are super flexible and made for extreme duty electric vehicle use.
Ok, now for you guys that want better performance, we’ll get a little more technical. The maximum current that will ever go through your cables is when the cart is at rest and you mash the gas pedal to the floor. At that point in time, the controller puts out the max power it is capable of, and the motor experiences what is called “locked rotor” current draw, which can be hundreds of amperes. When the motor is in a stalled state, it requires tremendous energy to get it spinning to the rated RPM. If the motor were to stay in the stalled state (if there was some mechanical restraint that would not allow it to turn) the high current would continue to be absorbed by the motor until it actually burned up the windings.
Typically though, the motor begins to spin immediately, and the current drops down to 20 or so amperes within a few milliseconds (on a stock cart). There are four things that limit that maximum current; the resistance of the internal windings of the motor, the current capacity of the battery pack, the controller capacity and the resistance of the battery cables. The Battery Pack and Motor windings are pretty much fixed values. Keep these in mind because we will come back to them.
Used Golf Carts - Electric Or Gas?
Aftermarket “high torque” or “high speed” motors installed to increase the carts performance are commonplace these days. Unfortunately, that additional performance requires additional power. The motor is only there to convert electrical energy into kinetic energy (not very efficiently either). High power motors have a lower internal resistance than stock, which in turn draws more current. If you remember from science class, power (in watts) is voltage (E) multiplied by the current (I). Since the voltage cannot go any higher than the battery’s 48volts (or 36volts), the current increases in order to satisfy the power demand of the motor. Unfortunately, this is where the resistance of the battery cables come into play. As the current increases in a conductor, power is lost in the form of heat at a rate of I2R, where R is the cable resistance.
In an ideal cable and to transfer max power, the cable resistance (R) should be zero ohms. Unfortunately all cables have some resistance. The cable resistance causes the voltage to drop (E=IR) and results in lost power to the motor. The solution; increase the size of the battery cables (the larger the cable the less the resistance). Of course, the cable diameter can only be increased within reasonable mechanical size limitations, but that is what is required to reap the full benefits of a high power aftermarket motor. Our example used the locked rotor current to explain the worst case effects. They are less drastic at partial throttle, where the current draw is significantly less.
If you want to do the drag racing, burnouts, wheelies and such with your cart though, you will need the bigger cables to supply the required massive inrush of current to the motor. Although the resistance of the cables seems tiny (#6 = 0.00047ohms/ft vs. #2 = 0.00015 ohms/ft), the voltage drop is significant when large currents are present, which will reduce performance. So for the high power motor users out there, use large diameter cables and keep them as short as possible. Size will matter to you. Look for other articles by Randy Wade and check out www.digitaloverdrivesystems.com regularly for news, tips and performance products including the new Maxilink Extreme Duty EV cables.
Interesting Facts About Cheap Golf Carts in Midrand:
About Cheap Golf Carts in Midrand:
At one point in time, the use of a golf cart was something only the somewhat wealthy could enjoy on a golf course. Those who were not able to afford the use of a golf cart often found themselves hauling their clubs over their shoulder as they walked the golf course. Well, times have changed. Golf carts are now the standard at almost all golf courses throughout the country. Very seldom do golfers carry their clubs over their shoulder anymore. Unfortunately, some recreational golfers like to treat the course golf cart like a toy rather than a purposeful mode of transportation. Often times, you can witness wreckless behavior exchanged between recreational golfers and the use of their golf carts. However, this is one minor annoyance as a result of the golf cart gaining popularity. Typically, golf carts are available for rent from the course clubhouse. Most golfers take advantage of this service. An alternative, if you have the money, would be to buy your own golf cart. However, this is costly, but you will not need to pay rent for a golf cart whenever you go to the course. Golf carts are available for purchase either new or used. New golf carts can be purchased from anywhere from about $4000 to $11,000 dollars. Many factors attribute to the cost, such as model, seating capacity, and any additional options that may be available. There are two types of golf cart engines, gas engine or electric engine. An alternative to new golf carts would be to purchase a used golf cart. Used golf carts are alot cheaper than new ones, and typically you can find a sufficient golf cart for less than $3000. Buying a used golf cart can be alot like buying a used car. You will need to thoroughly inspect it inside and out. Make sure to ask the owner any questions you may have about the golf cart. Always make sure to take it for a test drive before committing to a purchase.
Cheap Golf Carts in Midrand
A golf cart, as the name suggests, is a small gas or electrically powered vehicle used to carry two golfers and their golf clubs around the entire golf course.Electric golf carts are more popular than gas carts as they don't make noise nor pollute the environment. Today, there is growing awareness about the benefits of using electric golf carts. Many corporate organisations use golf carts to move around in their large campus grounds as well. Though the design of the golf cart has remained the same over the years, some improvements have been made to the standard features as time as progressed.Used electric golf carts should be bought on 'As Is' basis, as they come with the original body and dings, dents and scratches. You can check the accessories that come with the cart. The roof and battery chargers are usually a part of the package. Though the used golf cart may require some worn or torn parts to be replaced, you can always do the repairs at home only.
I own a golf cart dealership located in North Florida. We sell and service golf carts, both electric and gas powered. At our dealership there are far more electric powered golf carts that we repair than there are gas. I would say we see about a hundred electric carts to every gas powered in our service department. This isn't because gas cars are so much better and require less servicing.The reason for the mass difference is due to our location. We are in North Florida. Flat without any hills North Florida. We are also in a State that has been very "go green" friendly. Hence, not really a high demand for gas powered golf carts for the not so hilly greens. And right along with every electric golf cart is the golf cart's battery charger. We have walk-ins every week bringing us these chargers for us to diagnose.Sometimes the charger is just fine indicating that there is a problem on the golf cart which we then schedule for pickup. However, the majority of the time the initial plug in test indicates some sort of failure with the battery charger. There is a pretty good chance that the power surge demon attacked the battery charger. We live in an area of North Florida that has more than our fair share of electrical power surges. And if that's not bad enough we also experience a great number of afternoon thunderstorms accompanied by enough lightening that would have made Ben Franklin want to live here!I hope I have communicated these concepts in a positive way that helps us understand the need for a surge protector to be installed in the power circuit to the golf cart's battery charger. And in doing so you will prevent having to pay for costly repairs caused by the "electrical demons" of power surges and electrical spikes. With the end result of you saving money and taking better care of your golf cart. It is for these things why I write. I write for you and your understanding of your golf cart. Thank you for taking the time to read what I have to say. You honor me by doing so. OK, until next time we meet, get out there and enjoy your golf cart. After all, isn't that what you bought it for? MKR
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