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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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11-01-2017, 02:54 PM | #1 |
Gone Wild
Join Date: May 2016
Location: Central Alabama
Posts: 1,048
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PDS acrs when connecting battery terminal
PDS cart, short battery life, have load tested the batteries. Looking for battery drain.
When I touch the main positive cable to positive terminal I get a pretty strong arc. Does not arc with RT switch off. Also, after initial arc, does not arc again until I switch RT off and back on. It like it is charging a capacitor or something. Also, with RT switch on, the wire from charger port arcs when I touch to main positive and it arcs even without charger connected. Any ideas? |
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11-01-2017, 02:59 PM | #2 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,406
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Re: PDS acrs when connecting battery terminal
You didn't say what speed controller you are using or whether there is a pre-charge resistor on the controller but ...... The controller will draw significant power initially to load it's capacitors - once loaded this spark disappears until the charge drains off.
So none of what you posted sounds unusual. You may have a voltage reducer that is draining the pack? |
11-01-2017, 03:42 PM | #3 | |
Gone Wild
Join Date: May 2016
Location: Central Alabama
Posts: 1,048
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Re: PDS acrs when connecting battery terminal
Quote:
Little more info. No Voltage reducer. Controller is curtis 1206mx and has a resistor on solenoid. Battery Reserve capacity is rated at 105 min at 75 amps. Load test gave 75 amps for 65 minutes. Cart will run about 3 on dirt road miles on a full charge. 20.5" tires. |
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11-01-2017, 03:47 PM | #4 |
Not Yet Wild
Join Date: Jan 2017
Posts: 38
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Re: PDS acrs when connecting battery terminal
I just added a voltage reducer for my lights and noticed the same spark.
I un plugged the the reducer and no spark. Is it ok for things to just put up with the spark or unplug the v r first before messing with batts |
11-01-2017, 03:52 PM | #5 |
Gone Wild
Join Date: May 2016
Location: Central Alabama
Posts: 1,048
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Re: PDS acrs when connecting battery terminal
I do not have a voltage reducer and lights are disconnected
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11-01-2017, 03:59 PM | #6 | |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,406
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Re: PDS acrs when connecting battery terminal
Quote:
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11-01-2017, 04:15 PM | #7 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: PDS acrs when connecting battery terminal
I am no EzGo expert, but doesn't the white charger wire actually powers the entire cart logic system (reed switch in receptacle)?
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11-01-2017, 04:33 PM | #8 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,406
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Re: PDS acrs when connecting battery terminal
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11-01-2017, 04:46 PM | #9 |
Gone Wild
Join Date: May 2016
Location: Central Alabama
Posts: 1,048
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Re: PDS acrs when connecting battery terminal
In terms of the arc from the white charger wire. There is also a small red wire coming out of the same bundle as the black and white charger wires. The red wire has a spade connector in it right after it exits the bundle near the batteries. When I disconnect this red wire via the spade terminal, the white wire to charger port no longer arcs when touching to main positive.
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11-01-2017, 04:51 PM | #10 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,406
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Re: PDS acrs when connecting battery terminal
That's feeding the controller etc again.
But again - if once you hold the wire on the battery for 10 seconds or so....the arc quits when you re-connect, then the caps charging is making the arc. Once charged there is no arc and this behavior is normal. Than is how I read your initial post - No? |
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