2002 Yamaha G19e Dead in the water

hon250mxer · 12-28-2018, 08:20 PM

Hi all, looking for a little diagnostic assistance with my G19e. I have done a few tests and seem to be a bit confused. Previous owner thought there was a charging issue so I was hesitant to hook up and charge anything while I am sitting currently at 46.7 volts. I seem to have power in multiple places but nothing happens with the pedal depressed. I will attach the wiring diagram ive been following. Previous owner said the cart sat for a while, was put away running and then wouldnt move. Any suggestions on where to start would be greatly appreciated.

cgtech · 12-29-2018, 01:33 PM

First, put tow/run switch in Tow. Leave it that way until the batteries get fully charged.

Olddog72 · 12-30-2018, 01:24 PM

Should batteries always be put on charge that way.

cgtech · 12-31-2018, 09:36 AM

Not necessary in my opinion. It's just to allow the controller to reset, and for you to forget about further testing until they can be shown to have been fully charged.

hon250mxer · 01-06-2019, 03:09 PM

I'm thinking both of the battery chargers I have aren't working. Voltage doesn't seem to change, what should the output be on the charger? Also does it need the full 48v to usually run?

cgtech · 01-07-2019, 05:27 AM

Here's the problem, 46.7v could be batteries that are just really low and need a charge. Or, 46.7v could be one or more failed batteries that are total garbage, unable to be used for testing.. Also, 48v is only about 50% charged, full is 51-ish volts. Batteries should hit between 58-61v near the end of the charge cycle.

BBBHC · 01-07-2019, 07:51 AM

Quote:

Originally Posted by hon250mxer

I'm thinking both of the battery chargers I have aren't working. Voltage doesn't seem to change, what should the output be on the charger? Also does it need the full 48v to usually run?

Quote:

Originally Posted by cgtech

Here's the problem, 46.7v could be batteries that are just really low and need a charge. Or, 46.7v could be one or more failed batteries that are total garbage, unable to be used for testing.. Also, 48v is only about 50% charged, full is 51-ish volts. Batteries should hit between 58-61v near the end of the charge cycle.

Here is a good thread about batteries. Post #9 of the thread has a few very useful graphs showing percent of charge for battery packs.

http://www.buggiesgonewild.com/elect...batteries.html

hon250mxer · 01-09-2019, 07:25 AM

Interesting, thank you. Do you have a spec on what the charger output should be, I'm starting to believe my chargers are both bad. I've tested each individual battery and they all seem good.

ElHuaPo · 03-09-2019, 04:28 PM

Mine went suddenly dead too, so I started tracing volts & wires and found the local rats/mice had chewed through the red/yellow wire underneath the cart. 1 splice and back in business. Best of luck, hp

12-29-2018, 01:33 PM	#2
cgtech Over This Interview Is... Join Date: Jun 2012 Location: AZ Posts: 17,449	Re: 2002 Yamaha G19e Dead in the water First, put tow/run switch in Tow. Leave it that way until the batteries get fully charged.

12-30-2018, 01:24 PM	#3
Olddog72 Gone Wild Join Date: Oct 2018 Posts: 169	Re: 2002 Yamaha G19e Dead in the water Should batteries always be put on charge that way.
Olddog72 Gone Wild Join Date: Oct 2018 Posts: 169

12-31-2018, 09:36 AM	#4
cgtech Over This Interview Is... Join Date: Jun 2012 Location: AZ Posts: 17,449	Re: 2002 Yamaha G19e Dead in the water Not necessary in my opinion. It's just to allow the controller to reset, and for you to forget about further testing until they can be shown to have been fully charged.

01-06-2019, 03:09 PM	#5
hon250mxer Not Yet Wild Join Date: Dec 2018 Posts: 5	Re: 2002 Yamaha G19e Dead in the water I'm thinking both of the battery chargers I have aren't working. Voltage doesn't seem to change, what should the output be on the charger? Also does it need the full 48v to usually run?
hon250mxer Not Yet Wild Join Date: Dec 2018 Posts: 5

01-07-2019, 05:27 AM	#6
cgtech Over This Interview Is... Join Date: Jun 2012 Location: AZ Posts: 17,449	Re: 2002 Yamaha G19e Dead in the water Here's the problem, 46.7v could be batteries that are just really low and need a charge. Or, 46.7v could be one or more failed batteries that are total garbage, unable to be used for testing.. Also, 48v is only about 50% charged, full is 51-ish volts. Batteries should hit between 58-61v near the end of the charge cycle.

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01-09-2019, 07:25 AM	#8
hon250mxer Not Yet Wild Join Date: Dec 2018 Posts: 5	Re: 2002 Yamaha G19e Dead in the water Interesting, thank you. Do you have a spec on what the charger output should be, I'm starting to believe my chargers are both bad. I've tested each individual battery and they all seem good.
hon250mxer Not Yet Wild Join Date: Dec 2018 Posts: 5

03-09-2019, 04:28 PM	#9
ElHuaPo Not Yet Wild Join Date: Apr 2017 Location: mariposa, california Posts: 8	Re: 2002 Yamaha G19e Dead in the water Mine went suddenly dead too, so I started tracing volts & wires and found the local rats/mice had chewed through the red/yellow wire underneath the cart. 1 splice and back in business. Best of luck, hp

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