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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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10-21-2020, 02:39 PM | #11 | |
Not Yet Wild
Join Date: Mar 2017
Location: Canada
Posts: 5
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Re: Battery draw trouble shooting
Quote:
2) So best case if everything is proper then I should only expect 1.75 hours of run time? This helps a lot as I'm not sure how long it should really work for, it just didn't seem that long. I will look into a voltage converter to change the 12Volt draw, I know the one is for the lights but not sure of the other, maybe the horn. |
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10-21-2020, 04:42 PM | #12 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Battery draw trouble shooting
Quote:
2. We don't typically draw our batteries down to 50% SoC, so only about half that long if the average amp draw is 75A. However, that is pedal time and rather than trip time. A golf cart is designed to carry two golfers and their clubs over groomed trails for two rounds of golf on a single charge. A round of golf is 18 holes, is about six or seven miles long and is broken up into 18 or more trips of two hundred yards or so with the cart resting ten minutes or so of between trips. That is also with 225AH batteries rather than 210AH batteries. In other words, they are designed to have a range of about 12 to 14 miles on a single charge, but usually do more than that with healthy batteries and well maintained cables, contacts and connections. When my PDS was stock, it would go an estimated 23.1 miles on a single charge, but that was in mild hill mode and regen braking was putting some amps back in the batteries going down hills and slowing to stops. The batteries would only charge to 97% SoC (38.1V) at the time and they were at 70% SoC (37.1V) after 12.7 miles over a mixed terrain of pavement, gravel, dirt and grass surfaces going up and down hills with varying steepness with some stop and go on city streets mixed in. When I upgraded to a DCX400 controller, the range jumped to 30.6 miles, but the batteries had regained some storage capacity by them and would then charge to 100% SoC. So the 7.5 mile improvement was a combination of better batteries as well as a more efficient controller. 3. Run all 12V accessories off a voltage reducer or separate 12V battery. |
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