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Old 08-09-2015, 09:13 PM   #1
redeldo
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Default Batteries dead or charger dead

Ok, went out to work on the cart and it runs fine but hasn't been charged since we got here last week. The 48 volt charger does not come on when plugged into the working house outlet and plugged into the Yamaha g22 cart. This has been an intermittent occurrence for about the last year.

I checked the 6 batteries and the voltage was 8.17 to 8.19 on 5 with the sixth one being 8.07. I may need to buy a hygrometer to check specific gravity. So the batteries may be gone, anyone have any suggestions?

Oh, on the positive terminal there is a D 9 stamped on it. Is that the date of manufacture? There is nothing on the batteries to indicate the company name or any identification. These were in the cart when I purchased it.

I am thinking about going to Sam's and pick up 6 replacements. Anyone have any experience with their batteries?

Thanks

Wayne
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Old 08-09-2015, 09:20 PM   #2
crash test dummy
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Default Re: Batteries dead or charger dead

D9 = April 2009
yep may be going after 6 years
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Old 08-09-2015, 09:23 PM   #3
cgtech
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Default Re: Batteries dead or charger dead

So, a few questions first. Put DVM leads into charger port on cart, what volts? What model is the charger (pic maybe)? Current battery readings dont sound too terrible, range may suck from old batteries, but getting everything working should be number one before you go drop $700 on batteries (if this is your "keeper" cart, might want to consider stepping up to some "grade a" batteries).
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Old 08-09-2015, 09:27 PM   #4
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Default Re: Batteries dead or charger dead

Quote:
hasn't been charged since we got here last week
how long before that ?

they may show good voltage after charge but may drop off under load

best to follow cgtech advise .. he is darn good at this
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Old 08-10-2015, 09:11 AM   #5
redeldo
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Default Re: Batteries dead or charger dead

[QUOTE=crash test dummy;1186992]how long before that ?

they may show good voltage after charge but may drop off under load

best to follow cgtech advise .. he is darn good at it /QUOTE]

Crash, they were fully charged about 3 and a half weeks ago. Put it storage as always in the garage. This the Yamaha 48 volt charger Model SCR481717. I will post a photo in a little bit.

Thanks

Wayne
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Old 08-10-2015, 03:23 PM   #6
redeldo
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Default Re: Batteries dead or charger dead

Quote:
Originally Posted by cgtech View Post
So, a few questions first. Put DVM leads into charger port on cart, what volts? What model is the charger (pic maybe)? Current battery readings dont sound too terrible, range may suck from old batteries, but getting everything working should be number one before you go drop $700 on batteries (if this is your "keeper" cart, might want to consider stepping up to some "grade a" batteries).
cgtech

I am trying to add a photo but don't know if this will work. If not, the charger is a Yamaha 48 volt Model SCR 481717. I put the leads into the charger port of the cart set it 200 (V w/2lines beneath) and got nothing, same with the ohm set at 200, same with A w/2 lines beneath) but on the V with 1 line set at 200, I got 106.8. Is that about right or what should it be? I guess you can tell I'm not to familiar with multimeters!

Can I check the probes on the end of the charger cable to check to see if power is coming out of the charger? If so, what do I set it on and about what should I expect to see?

I saw on youtube where it showed how to charge 2 batteries for about 30 minutes then switch to 2 more and finally to the last 2. It indicated that it should be sufficient charge to have the charger "recognize" that a charge is needed and turn itself on. Do you think that is a good idea? Probably would not solve the problem long term though.


Wayne
06 Yamaha G22
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Old 08-10-2015, 06:34 PM   #7
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Default Re: Batteries dead or charger dead

If the cart will move under its own power, the voltage is likely not too low for charger to activate. The test at the charger port was mostly to verify good connection through it to the batteries (and should have read above 46v and below 52v). You may have fried your meter by doing the test on the Ohm setting, you should be using the "Dc 200v" setting. Might need to familiarize yourself with the operation of your meter and maybe try a different meter. We cant do much charger verification/testing without a functional charge port to hook it to. Cant do much testing on the charger without being able to hook it up to the batteries, just plugging it into the wall wont allow you to test its output.
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Old 08-10-2015, 07:03 PM   #8
redeldo
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Default Re: Batteries dead or charger dead

Ok, I will get some lessons under my belt and try again. I will get back to you when I familiar with the tester.
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Old 08-10-2015, 07:28 PM   #9
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Default Re: Batteries dead or charger dead

Now that i have seen the pic of your MAC charger, do the lights on the front flash when its plugged into the CART?
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Old 08-12-2015, 08:39 PM   #10
redeldo
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Default Re: Batteries dead or charger dead

cgtech

When the charge cable is plugged into the cart receptacle there are no lights showing on the charger. In the past, I could leave it plugged in and eventually all the lights would flash on and off. At that point I would just unplug the charger (cart and house plug) and let it sit. It might turn on after several days but then it goes back to no lights at all.

Now, I get nothing. While I was out yesterday my brother-in-law checked the currents and was getting 46 at the cart receptacle and he said it appeared the charger was getting current but not sending it to the cart.

We are now back in Georgia (cart in Tenn). So it will sit until I get back up there.

Thanks
Wayne
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