Battery volt drop

danlewis75 · 03-07-2016, 07:59 PM

Is it normal for me to charge my 48 volt pack(6-8 volt batteries) to 50.9 then 24 hours later (not driving it) the volt pack it 50.4?

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Tech Support · 03-10-2016, 08:48 AM

That's pretty normal. When first read so close to end of charge, you're really reading a surface charge. You have to let the pack dissipate that for several - almost 24 hours to get the true reading.

scottyb · 03-10-2016, 08:57 AM

My guess is this, if the reading stays very close to 50.4 for more than a day then 50.4 is the true total charge. If it continues to drop significantly you recharge and disconnect the main + or - and see if there is a parasitic drain from the cart on the pack.

danlewis75 · 03-14-2016, 09:06 PM

Ok, so I am charging my cart. It's in the final stages of charging (I have a onboard charger with light inductors). The total pack voltage while in final stages of charging is 61.3. Three of my batteries are 9.7 at final stages of charging and my other three are at 10.7. Is that normal or a indication of battery problems?

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Tech Support · 03-14-2016, 09:23 PM

Your total voltage is fine but you should not be seeing that much difference between the batteries. That would suggest they are not all of the same condition and if left that way can cause charging issues as a pack.

03-07-2016, 07:59 PM	#1
danlewis75 Not Yet Wild Join Date: Feb 2016 Posts: 64	Battery volt drop Is it normal for me to charge my 48 volt pack(6-8 volt batteries) to 50.9 then 24 hours later (not driving it) the volt pack it 50.4? Sent from my iPhone using Tapatalk
danlewis75 Not Yet Wild Join Date: Feb 2016 Posts: 64

03-10-2016, 08:48 AM	#2
Tech Support How Can I Help? Join Date: Oct 2009 Location: SW Wisc & West Central, FL Posts: 1,383	Re: Battery volt drop That's pretty normal. When first read so close to end of charge, you're really reading a surface charge. You have to let the pack dissipate that for several - almost 24 hours to get the true reading.

03-10-2016, 08:57 AM	#3
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,399	Re: Battery volt drop My guess is this, if the reading stays very close to 50.4 for more than a day then 50.4 is the true total charge. If it continues to drop significantly you recharge and disconnect the main + or - and see if there is a parasitic drain from the cart on the pack.

03-14-2016, 09:06 PM	#4
danlewis75 Not Yet Wild Join Date: Feb 2016 Posts: 64	Ok, so I am charging my cart. It's in the final stages of charging (I have a onboard charger with light inductors). The total pack voltage while in final stages of charging is 61.3. Three of my batteries are 9.7 at final stages of charging and my other three are at 10.7. Is that normal or a indication of battery problems? Sent from my iPhone using Tapatalk
danlewis75 Not Yet Wild Join Date: Feb 2016 Posts: 64

03-14-2016, 09:23 PM	#5
Tech Support How Can I Help? Join Date: Oct 2009 Location: SW Wisc & West Central, FL Posts: 1,383	Re: Battery volt drop Your total voltage is fine but you should not be seeing that much difference between the batteries. That would suggest they are not all of the same condition and if left that way can cause charging issues as a pack.

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