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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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12-10-2011, 10:03 AM | #11 | |
Getting Wild
Join Date: Dec 2011
Location: SE NC
Posts: 78
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Re: 91 EZGo won't go.
Quote:
my 6/12V charger has a digital battery meter on it. For my marine batteries it is pretty good at measuring how well they are charged. When I hooked the cart charger up last night about 9pm it was charging at almost 30amps, when I went back out a little while later it was just over 20 amps. This morning I went out (10hrs later) and it was charging at about 4 amps. I'll check it again in a few minutes and if it is off I'll disconnect it and re-connect it to make sure it didn't auto shutoff before it was fully charged. I'll take a look at the connections and the contacts to see what might be going on with the pedal. |
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12-10-2011, 10:05 AM | #12 |
Getting Wild
Join Date: Dec 2011
Location: SE NC
Posts: 78
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Re: 91 EZGo won't go.
come to think of it the throttle arm does seem a little bent. it appears that part of it should be making contact when the pedal is not pressed but it isn't making contact. It almost seems like the cart is barely wanting to move when the pedal is not pressed. I'll look at it again and maybe take a picture.
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12-10-2011, 10:40 AM | #13 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: 91 EZGo won't go.
Quote:
This one is for deep cycle Golf Cart Batteries, but marine batteries are closer to golf cart batteries than car batteries, so it should be pretty close for them also. Note: The voltages on the chart are after batteries have rested at least 6 hours after charging, or at least 15 minutes after use. ----- Sounds like your batteries were pretty low. 30A is the upper end of the charge rate for a 225 Ah battery (I'm guessing that is what you got. ) Since it dropped down to 20A and is now at 4A, they seem to be charging okay. They will stay in the gassing phase for a long time, so keep an eye on the electrolyte level. Which 36V charger you using? Sorry if I'm telling you things you already know. |
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12-12-2011, 10:58 AM | #14 |
Getting Wild
Join Date: Dec 2011
Location: SE NC
Posts: 78
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Re: 91 EZGo won't go.
JohnnieB, I am using a Lestronic II charger. I said it started at 30amps but I might not have been entirely accurate, it was up over 20amps, likely around 25 would be my best guess. The charger shuts off when the batteries are charged. I'll unplug the charger and plug it back in and it will run for a few minutes and shut off as expected.
as far as the specific gravity, I'm not familiar with that and don't have a meter to check. Is that the old suction type gauges where you used to pull in a little electrolyte to check for dead cells etc? they have a little float/ball in them kind of like you use to check your antifreeze? |
12-12-2011, 11:54 AM | #15 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: 91 EZGo won't go.
The Lestronic II is a good charger.
Built like a tank and everything is repairable or replaceable, but if the transformer goes, a replacement transformer cost almost as much as comparable replacement charger. I've got manuals if needed. If the batteries are deeply discharged, it could jump to 30A, but it shouldn't stay there more than 15 minutes before it tapers off to 25 or less. If the batteries are near full charge, it will only jump up to about 10 and taper down from there. The initial charge rate is current limited by the ingenious transformer/capacitor design and when battery voltage begins to rise, current reduces accordingly. Almost impossible to harm batteries with it unless somebody bypassed the on/off relay. As for measuring Specific Gravity, The old floating ball type hydrometers aren't accurate enough, or at least hard to read and use since you have to adjust for temperature manually. Best to get a temperature compensated digital battery hydrometer. I just figured you already had one for your marine batteries. |
12-12-2011, 12:50 PM | #16 | |
Getting Wild
Join Date: Dec 2011
Location: SE NC
Posts: 78
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Re: 91 EZGo won't go.
Quote:
I just add distilled water to them when they get low and when they stop holding a charge as long as I need I replace them. I've found I have a bad wheel bearing, going to go research that a bit now. I might have a new thread in a few. Thanks for all your help on my electrical problems. I'll keep digging into my issue about having to press the pedal a few times but the bearing is a bigger problem right now. |
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12-12-2011, 01:17 PM | #17 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: 91 EZGo won't go.
Just treat your cart batteries as well as you treat your marine batteries and they'll be okay.
I not into the mechanical stuff much, but there are a couple threads on replacing wheel bearings on the forum. |
12-12-2011, 02:44 PM | #18 |
Getting Wild
Join Date: Dec 2011
Location: SE NC
Posts: 78
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Re: 91 EZGo won't go.
thanks Johnnie B, I found how to pull the axle, now just need to find out which bearing and where to get it. I opened a separate thread for that to make it easier for future searchers.
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