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Unread 12-25-2013, 01:06 PM   #1
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Default 48v meter not reading right

So i purchased a 48v meter off eBay. It has 4 connection places on the back. + - C and R. I read online and I can't find out what goes to the R. I used the factory battery light wired and hooked those to the + and - on the back of the meter. And the C I ran to the key switch. It reads full charge the entire time even when batteries are ran down. Any ideas?
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Unread 12-25-2013, 04:45 PM   #2
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Default Re: 48v meter not reading right

Sorry. I forgot. Its a 2009 Precedent.
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Unread 12-26-2013, 10:12 AM   #3
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Default Re: 48v meter not reading right

I just dont know how the meter can still read 48v or full charge when its not. how it those wires getting that high of a voltage reading

http://www.ebay.com/itm/321151005743...84.m1497.l2649
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Unread 12-26-2013, 10:15 AM   #4
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Default Re: 48v meter not reading right

This listing shows the back of the meter with 4 connections

http://www.ebay.com/itm/48-Volt-EZGO...-/171105311446
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Unread 12-26-2013, 02:01 PM   #5
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Default Re: 48v meter not reading right

any ideas?
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Unread 12-26-2013, 04:06 PM   #6
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Default Re: 48v meter not reading right

The link you posted says the meter reads 49.31v as full charge, that is about 70% SOC. You may not be discharging the batteries enough to register.
The "R" terminal is for an optional Relay output, just leave it disconnected.
I think a digital voltmeter gives you a better idea of SOC.
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Unread 12-26-2013, 04:47 PM   #7
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Default Re: 48v meter not reading right

Quote:
Originally Posted by Sergio View Post
The link you posted says the meter reads 49.31v as full charge, that is about 70% SOC. You may not be discharging the batteries enough to register.
The "R" terminal is for an optional Relay output, just leave it disconnected.
I think a digital voltmeter gives you a better idea of SOC.
Even worse it says 41.52 volts empty reading. That's WAY below 50% SOC as recommended for a 48v pack. Damage will occur if you ride cart till gauge reads empty.
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Unread 12-26-2013, 04:53 PM   #8
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Default Re: 48v meter not reading right

ok. so i will trash this one and order another one. I looked on ebay and all the ones coming form china have the same readings, i will order one thru madjax when they open back up on the 2nd
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Unread 12-26-2013, 05:52 PM   #9
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Default Re: 48v meter not reading right

I think you are better off with a digital volt meter for your readings. It is much easier to take care of your batteries if you have precise readings. I got mine from Cart's Unlimited. There is a link in the site sponsor section. They are more expensive than the ebay models, but I went through 2 of those before I purchased one from Scotty.
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