A few battery questions

bash11 · 08-09-2015, 05:49 PM

Hi again,
I have a 2008 PDS EZ-GO that is licensed for road use. I put a voltmeter across the battery pack to determine state of charge. I know that the batteries need to rest for a while before this measurement is taken , but I also watch it during operation. What voltage drop is to be expected when the cart is in operation under light, moderate, and heavy loads?
My second question is when measuring each battery during rest. What is a diserable variation in voltage from battery to battery (a measure of balance)?

Golf cart guy · 08-09-2015, 06:37 PM

cart running about 46 volts underload -full throttle. That would be normal. Should be heading back home if you have a digital meter, and you see 44 volts flat ground full throttle.

08-09-2015, 06:40 PM

Quote:

Originally Posted by bash11

My second question is when measuring each battery during rest. What is a diserable variation in voltage from battery to battery (a measure of balance)?

within .3 volts

bash11 · 08-09-2015, 07:13 PM

I have a 36 volt cart.

08-09-2015, 07:21 PM

pack voltage should be 38.2 after full charge and 12hrs rest
each 6v battery should be 6.37
never let cart batteries get to 50% discharge or 36..3v at rest reading
your while driving readings can be as low as 34v under heavy load
see chart

08-09-2015, 05:49 PM	#1
bash11 Not Yet Wild Join Date: Oct 2013 Posts: 17	A few battery questions Hi again, I have a 2008 PDS EZ-GO that is licensed for road use. I put a voltmeter across the battery pack to determine state of charge. I know that the batteries need to rest for a while before this measurement is taken , but I also watch it during operation. What voltage drop is to be expected when the cart is in operation under light, moderate, and heavy loads? My second question is when measuring each battery during rest. What is a diserable variation in voltage from battery to battery (a measure of balance)?
bash11 Not Yet Wild Join Date: Oct 2013 Posts: 17

08-09-2015, 06:37 PM	#2
Golf cart guy Gone Wild Join Date: May 2015 Location: Central Florida Posts: 2,114	Re: A few battery questions cart running about 46 volts underload -full throttle. That would be normal. Should be heading back home if you have a digital meter, and you see 44 volts flat ground full throttle.

08-09-2015, 07:13 PM	#4
bash11 Not Yet Wild Join Date: Oct 2013 Posts: 17	Re: A few battery questions I have a 36 volt cart.
bash11 Not Yet Wild Join Date: Oct 2013 Posts: 17

08-09-2015, 07:21 PM	#5
crash test dummy Guest Posts: n/a	Re: A few battery questions pack voltage should be 38.2 after full charge and 12hrs rest each 6v battery should be 6.37 never let cart batteries get to 50% discharge or 36..3v at rest reading your while driving readings can be as low as 34v under heavy load see chart
crash test dummy Guest Posts: n/a

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