1999 Yamaha G16E attempts to move forward then quits

barnboy · 10-10-2016, 04:59 PM

Hi Everyone,

I have a 1999 Yamaha G16E (36 volt system) that attempts to move forward but power cuts before it can move at all. I am fairly confident that all the batteries are good, as I just tested a few weeks back and had to replace a bad one that was reading around 4 volts.

All connections between batteries and all seem to be in tack and not corroded. So now I am at a loss. Any advice on where to go next and what to check?

On a side note, how do you know if a charger is bad. Seems like the charger runs and never moves off of the 0-1 Amps reading on the charger. It will shut off after a while but takes a bit. This issue has been an ongoing issue where it won't work, then will work fine for a few weeks, then do the same again.

Thanks in advance for the help,

Matt

cgtech · 10-10-2016, 07:36 PM

Charger should go way above 1 amp when it first turns on, then taper back to near zero before shutting down. These charger symptoms could be caused by a charger problem, or another bad battery that allows the charging voltage to instantly jump to the cutoff voltage. What voltage does the pack reach while on charge?

Volt_Ampere · 10-10-2016, 08:02 PM

What is your pack voltage when it tries to move and quits?

barnboy · 10-10-2016, 09:45 PM

Yeah it seems that the charger always hovers around 1, never moves. I guess I do not know how to determine the pack voltage....kind of a newbie at electric golf carts haha. How would you go about this and what would it tell me?

Volt_Ampere · 10-11-2016, 09:08 AM

Get a digital voltmeter and learn how to use it! It is not difficult and you will eventually need to troubleshoot battery problems. It sounds like it could be a battery problem and the way to tell is to measure the battery pack voltage while trying to drive the cart.

barnboy · 10-11-2016, 09:14 AM

Lol I understand how to use a voltmeter Volt_Ampere but doesn't do me any good if I don't know what to measure! Is the pack voltage the voltage across all the batteries??

cgtech · 10-11-2016, 09:43 AM

The battery terminals farthest to the front outer left & right corners on a G16.

Volt_Ampere · 10-11-2016, 11:37 AM

Yes - pack voltage is the voltage across the battery "pack". You need to monitor it when stopped and when trying to move. If it drops a lot when trying to move, you either have a bad battery or a bad cable connection. This is by far the most common problem we deal with on this forum.

barnboy · 10-12-2016, 09:59 AM

Ok thanks! I will start here and let you know what I find

10-10-2016, 04:59 PM	#1
barnboy Not Yet Wild Join Date: Oct 2016 Posts: 4	1999 Yamaha G16E attempts to move forward then quits Hi Everyone, I have a 1999 Yamaha G16E (36 volt system) that attempts to move forward but power cuts before it can move at all. I am fairly confident that all the batteries are good, as I just tested a few weeks back and had to replace a bad one that was reading around 4 volts. All connections between batteries and all seem to be in tack and not corroded. So now I am at a loss. Any advice on where to go next and what to check? On a side note, how do you know if a charger is bad. Seems like the charger runs and never moves off of the 0-1 Amps reading on the charger. It will shut off after a while but takes a bit. This issue has been an ongoing issue where it won't work, then will work fine for a few weeks, then do the same again. Thanks in advance for the help, Matt
barnboy Not Yet Wild Join Date: Oct 2016 Posts: 4

10-10-2016, 07:36 PM	#2
cgtech Over This Interview Is... Join Date: Jun 2012 Location: AZ Posts: 17,449	Re: 1999 Yamaha G16E attempts to move forward then quits Charger should go way above 1 amp when it first turns on, then taper back to near zero before shutting down. These charger symptoms could be caused by a charger problem, or another bad battery that allows the charging voltage to instantly jump to the cutoff voltage. What voltage does the pack reach while on charge?

10-10-2016, 08:02 PM	#3
Volt_Ampere Gone Wild Join Date: May 2012 Location: Rio Verde, Az Posts: 7,173	Re: 1999 Yamaha G16E attempts to move forward then quits What is your pack voltage when it tries to move and quits?

10-10-2016, 09:45 PM	#4
barnboy Not Yet Wild Join Date: Oct 2016 Posts: 4	Re: 1999 Yamaha G16E attempts to move forward then quits Yeah it seems that the charger always hovers around 1, never moves. I guess I do not know how to determine the pack voltage....kind of a newbie at electric golf carts haha. How would you go about this and what would it tell me?
barnboy Not Yet Wild Join Date: Oct 2016 Posts: 4

10-11-2016, 09:08 AM	#5
Volt_Ampere Gone Wild Join Date: May 2012 Location: Rio Verde, Az Posts: 7,173	Re: 1999 Yamaha G16E attempts to move forward then quits Get a digital voltmeter and learn how to use it! It is not difficult and you will eventually need to troubleshoot battery problems. It sounds like it could be a battery problem and the way to tell is to measure the battery pack voltage while trying to drive the cart.

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10-11-2016, 09:14 AM	#6
barnboy Not Yet Wild Join Date: Oct 2016 Posts: 4	Re: 1999 Yamaha G16E attempts to move forward then quits Lol I understand how to use a voltmeter Volt_Ampere but doesn't do me any good if I don't know what to measure! Is the pack voltage the voltage across all the batteries??
barnboy Not Yet Wild Join Date: Oct 2016 Posts: 4

10-11-2016, 09:43 AM	#7
cgtech Over This Interview Is... Join Date: Jun 2012 Location: AZ Posts: 17,449	Re: 1999 Yamaha G16E attempts to move forward then quits The battery terminals farthest to the front outer left & right corners on a G16.

10-11-2016, 11:37 AM	#8
Volt_Ampere Gone Wild Join Date: May 2012 Location: Rio Verde, Az Posts: 7,173	Re: 1999 Yamaha G16E attempts to move forward then quits Yes - pack voltage is the voltage across the battery "pack". You need to monitor it when stopped and when trying to move. If it drops a lot when trying to move, you either have a bad battery or a bad cable connection. This is by far the most common problem we deal with on this forum.

10-12-2016, 09:59 AM	#9
barnboy Not Yet Wild Join Date: Oct 2016 Posts: 4	Re: 1999 Yamaha G16E attempts to move forward then quits Ok thanks! I will start here and let you know what I find
barnboy Not Yet Wild Join Date: Oct 2016 Posts: 4

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