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Electric golf carts Harley Davidson, Melex, Pargo, Taylor-Dunn and other Misc. Carts. |
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05-18-2023, 08:11 AM | #1 |
Not Yet Wild
Join Date: May 2023
Posts: 57
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Question regarding battery voltage and top speed of cart
If I have a 36 volt cart and when fully charged it is only 37.5 (80% life) does that mean I will lose roughly 20% of my top speed? If I have 38.2 volts (just .7 volts more) I have a 100% satisfactory battery....doesn't seem like just .7 volts would make a difference in top speed....
Does this just mean my batteries won't be able to last as long but have no effect on performance (top speed) I'm just trying to optimize my cart and get the most speed I can out of it....I don't want to replace a battery expecting a 3 mph increase just to find out my battery or batteries were fine.... Is there a spec that I need to be at when it comes to full speed...while cart is going as fast as it will go at full throttle on flat ground what my voltage should be at? |
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05-18-2023, 08:28 AM | #2 |
Gone Wild
Join Date: Sep 2022
Location: Minnesota
Posts: 1,318
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Re: Question regarding battery voltage and top speed of cart
If your batteries are 37.5v fully charged after resting I assure you there is a problem with your batteries. 3mph worth of problem? Hard to say.
I would check and see what your voltage drop is when you take off with the cart. |
05-18-2023, 08:40 AM | #3 |
Gone Wild
Join Date: Dec 2009
Location: Aiken, SC
Posts: 13,188
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Re: Question regarding battery voltage and top speed of cart
Depends on the cart but if it is a sepex speed is controlled by the controller and a speed sensor. Eventually speed will drop due to lower voltage but not at first.
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05-18-2023, 09:58 AM | #4 |
Not Yet Wild
Join Date: May 2023
Posts: 57
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Re: Question regarding battery voltage and top speed of cart
Ok I will do so...I will take off from dead stop and record my findings....I have no idea the specs as to what is good and what isn't....if 37.5 drops to 36 then I'm assuming that's OK and not affecting top speed etc....if batteries are just not optimal but putting a new one or whole set in will not change overall top speed then I will not want to waste my $
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05-18-2023, 09:59 AM | #5 | |
Not Yet Wild
Join Date: May 2023
Posts: 57
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Re: Question regarding battery voltage and top speed of cart
Quote:
It is a sepex but motor has no speed sensor on it....no wires coming out of it....just 4 wires going in to the terminals a1 a2 f1 f2 |
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05-18-2023, 10:12 AM | #6 |
Gone Wild
Join Date: Dec 2009
Location: Aiken, SC
Posts: 13,188
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Re: Question regarding battery voltage and top speed of cart
And have you taken it to the dealer yet??
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05-18-2023, 10:43 AM | #7 |
Not Yet Wild
Join Date: May 2023
Posts: 57
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Re: Question regarding battery voltage and top speed of cart
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05-21-2023, 02:08 PM | #8 |
Gone Wild
Join Date: Dec 2009
Location: Aiken, SC
Posts: 13,188
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Re: Question regarding battery voltage and top speed of cart
Was the dealer able to tell you anything?
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05-25-2023, 06:31 AM | #9 |
Not Yet Wild
Join Date: May 2023
Posts: 57
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Re: Question regarding battery voltage and top speed of cart
I wasn't able to make it there Saturday but this Saturday I am going 100%...I will let you know...I talked to mechanic on phone and he seems pretty confident he should be able to increase the speed a little by programming it.
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