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Electric Yamaha Electric Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
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11-25-2019, 04:53 PM | #1 |
Not Yet Wild
Join Date: Jul 2019
Posts: 20
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2009 Yamaha Drive 48v
I recently bought a 2009 YDRE. Batteries are about 80%. Everything else seems to be in working condition. My issue is that the cart only goes 12mph. My 36v club car blows this 48v away. Any idea why that is?
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11-25-2019, 05:08 PM | #2 |
Gone Wild
Join Date: Jun 2017
Location: Savannah, GA
Posts: 6,539
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Re: 2009 Yamaha Drive 48v
What do you mean by 80%? 80% charged? How old are the batteries? Also, the default speed code on those is very slow. You would have to replace the controller or get a PTV code.
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11-25-2019, 05:15 PM | #3 |
Not Yet Wild
Join Date: Jul 2019
Posts: 20
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Re: 2009 Yamaha Drive 48v
I had someone load test them and did a hydrometer check on them and that’s what he told me? I called a Yamaha dealer and they said to put in a speed code, it would be about $145 plus labor. I’m ok with spending that but, he said that it sounds like something else could be wrong if it’s going that slow.
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11-25-2019, 05:16 PM | #4 |
Not Yet Wild
Join Date: Jul 2019
Posts: 20
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Re: 2009 Yamaha Drive 48v
Batteries are almost 5 years old
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11-26-2019, 03:31 AM | #5 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: 2009 Yamaha Drive 48v
Speeds sound about typical for "not unlocked", but I would be very skeptical of anyone's test that puts 5 year old golf batteries at 80%. That's about their typical lifespan before they're dead. I'm sure they didn't use test measures that could estimate anything near "expected run times" for golf cart batteries pushing golf carts around. Automotive starting tests are a joke for batteries that are expected to do more than crank a starter. Don't put much faith in SG (hydrometer) readings when fully charged batteries are at rest either, "at rest" readings don't move golf carts far. How long can they carry a 56a load? (Hint: thats the 48v golf battery standard test, should be longer than 60 minutes). What would happen to their hand held automotive battery load tester if they held it on for even 5 minutes straight? Would short out, catch fire, burn their hands......
Automotive load testers are only good enough to characterize golf batteries as "totally junk", or "not totally junk", that's about all they can do. (Assuming every battery you test/compare is at the same level of charge). An "ok" battery that's fully discharged will not look good on that 15 second test. While a fully charged battery that can barely get around the block might look better (during the 15 second test). Takes more than 15 seconds to get around the block. Automotive starter batteries are typically never going to be expected to deliver the cranking power for longer than about 15 seconds at a time before the vehicle starts. (At that point you may expect it's not gonna start for some other reason). See where the weakness of automotive testers vs golf batteries come up? |
11-26-2019, 08:35 AM | #6 |
Not Yet Wild
Join Date: Oct 2019
Location: Western PA
Posts: 16
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Re: 2009 Yamaha Drive 48v
I bought a 2012 YDRE this summer. Top speed was also 12-13 mph. I just upgraded to the Alltrax controller, HD solenoid and 2g wires. Just in testing got it at 22 mph. Will be looking to replace the stock motor soon.
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11-26-2019, 10:36 AM | #7 | |
Not Yet Wild
Join Date: Nov 2019
Location: Pennsylvania
Posts: 3
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Re: 2009 Yamaha Drive 48v
Quote:
thanks Im in Bucks county PA ! |
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11-26-2019, 11:00 AM | #8 |
Not Yet Wild
Join Date: Oct 2019
Location: Western PA
Posts: 16
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Re: 2009 Yamaha Drive 48v
I wasn't planning on the controller right away, but happened to find one on an Ebay search...I couldn't pass it up.
I'm in Mercer County, other side of the state. |
11-26-2019, 11:29 AM | #9 |
Gone Wild
Join Date: Jun 2017
Location: Savannah, GA
Posts: 6,539
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Re: 2009 Yamaha Drive 48v
A great place to get the controller is Scotty at cartsunlimited.net. Site sponsor and great install instructions and support.
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11-26-2019, 02:08 PM | #10 |
Not Yet Wild
Join Date: Nov 2019
Location: Pennsylvania
Posts: 3
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Re: 2009 Yamaha Drive 48v
Thank you !
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