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Unread 06-20-2010, 11:48 PM   #31
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Default Re: charger is draining batteries

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Unread 06-22-2010, 10:31 PM   #32
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Default Re: charger is draining batteries

[QUOTE=rabbitreborn;419302]OK now we are getting somewhere....

the charger isn't draining the batteries, something in the cart is. That being said, start at the beginning until you isolate exactly what is draining the juice. If I had to venture a guess, I would say the Solenoid is welded shut, but to verify that you are going to have to run some tests.

First, put the cart in neutral, then reconnect the battery pack. Check pack voltage (we'll call this Battery Reference voltage)

rabbitreborn,
You are the bomb!
Solenoid was fried! Replaced the fuse on cart side of charger receptacle, new solenoid and is currently charging. It appears this was a combination of problems. The fuse on charger receptacle was barely hanging on and apparently not charging well. The solenoid was welded shut/open as you suggested and draining the battery. I am keeping my fingers crossed.
Just an FYI This is a used cart that several neighbors pitched in to buy for an 86 year old neighbor. He uses the cart to visit and have a little freedom because he can't drive his truck anymore.
Thank you to all who responded for all of the assistance and suggestions. I hope this is the ticket and we can get our neighbor back up and around.
ScottyB thanks to you also.
I hope this is it but if not I will be back for all the expertise offered here.
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Unread 06-22-2010, 11:24 PM   #33
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Default Re: charger is draining batteries

Anytime, Glad I could lend a hand.
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Unread 12-22-2013, 06:24 PM   #34
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Default Re: charger is draining batteries

I realize this is an old post, but I just came across it. Can any of you guys that originally was trying to help here, come back and help me?

I don't know if I should start an entire new post, or can I jump in here ?

I have some questions about taking readings on the solenoid, very similar to this sitch?

thanks for any help
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Unread 12-22-2013, 11:10 PM   #35
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Default Re: charger is draining batteries

Ask away
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Unread 12-23-2013, 10:14 AM   #36
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Default Re: charger is draining batteries

I have a 2009 precedent, i am original owner. I have a problem with my batteries draining, even without using the cart.

I have 6 eight volt batteries. This problem has been from day one. Took it back to dealer, and they said it was a bad key switch and replaced that. That did not fix my problem.

I am on my second set of trojan batteries now. I put a post up about my sitch a few days ago. I came across this old post, and it seems maybe this could be my situation.
I charge my batteries then let them sit for a day. At that point the reading is 51.2 volt. Without using the cart, in 2 days they will be at 50.1. Then each day is less.

The only accessory is lites, which i never use. SO HERE is where i am at. I read this post, then i went out and put my cart in neautral, with key off and tow switch on. I then read pack voltage ( 51.0), I then read one large solenoid post ( 51.0) and then the other large solenoid post ( 49.5).
So I am thinking that the solenoid should only have voltage to one large terminal since pedal is not pushed and key is off.

I put a amp meter ( clamp on) on my pack - cable and it constantly shows between .2 and .3 amps.

So why am i getting this reading with the amp meter?
I am wondering if my solenoid is bad? This post makes me think the solenoid is bad since power is on both large terminals. What do you think, should i replace the solenoid?

Thank you
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Unread 12-23-2013, 10:40 AM   #37
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Default Re: charger is draining batteries

I didn't know a clamp meter would work on D C current. the pre charge resistor will give you voltage on both sides of the sol.

Others know more than I do on this . I am just wondering about the clamp meter for D C amps.
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Unread 12-23-2013, 02:44 PM   #38
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Default Re: charger is draining batteries

They make the meters with Hall Effect probes that read AC/DC current, although the most common is probably the Current Transformer Clamps which only measure AC current.
Since your meter can read DC, it should make your life easier.
I would start by putting the probe on the lead wire going to your lights/voltage reducer to make sure no current is there.
Also, does that 200mA current go away when you put the switch on TOW?
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Unread 12-23-2013, 03:05 PM   #39
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Default Re: charger is draining batteries

where is the reducer located on this cart?
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Unread 12-23-2013, 03:11 PM   #40
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Default Re: charger is draining batteries

If there is one, it is typically mounted on the frame, in the vertical part that points towards the front on the passenger side.
I would instead measure the wire connected to your battery pack, it is usually a blue wire with an inline fuse. If it is on the 48v connection, then you certainly have a voltage converter. If it is in the 16v connection, it could be either a simple reducer, or the lights are running at 16v.
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