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02-17-2014, 05:11 PM | #1 |
Gone Wild
Join Date: Jun 2008
Location: Texas Hill Country
Posts: 397
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48v pack voltage while under a load??
Looking for some readings from folks.
Can you please post your entire pack voltage when driving while under a load. While driving uphill or with cart full of passengers. After a full charge and even after 10-20 minutes of running around I'm getting 46-46.5 volts while under load heading up a rather steep hill. Thanks |
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02-17-2014, 05:21 PM | #2 | |
Medicare Recipient
Join Date: Jun 2011
Location: West Michigan
Posts: 3,541
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Re: 48v pack voltage while under a load??
Quote:
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02-17-2014, 05:21 PM | #3 |
Gone Wild
Join Date: Aug 2009
Posts: 14,245
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Re: 48v pack voltage while under a load??
Your readings sound ok. My batts are 4 years old and when I am going up a hill the pack will drop down to around 45-46 volts, sometimes lower than that if they are more discharged. The important thing is resting voltage to determine SOC...
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02-17-2014, 05:42 PM | #4 |
Gone Wild
Join Date: Jun 2008
Location: Texas Hill Country
Posts: 397
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Re: 48v pack voltage while under a load??
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02-17-2014, 05:43 PM | #5 |
Gone Wild
Join Date: Jun 2008
Location: Texas Hill Country
Posts: 397
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Re: 48v pack voltage while under a load??
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02-17-2014, 05:51 PM | #6 |
Gone Wild
Join Date: Aug 2009
Posts: 14,245
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Re: 48v pack voltage while under a load??
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02-17-2014, 05:54 PM | #7 |
Gone Wild
Join Date: Nov 2012
Location: Ontario , Canada
Posts: 609
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Re: 48v pack voltage while under a load??
Everything sounds normal , SOC= state of Charge , there are look up tables
To determine your %soc -never discharge batteries below 50% SOC Never go below 42 volts for 48 volt system while under load Edit : I guess Jake beat me to it |
02-17-2014, 06:03 PM | #8 |
Gone Wild
Join Date: Jun 2008
Location: Texas Hill Country
Posts: 397
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Re: 48v pack voltage while under a load??
Thanks gang. Looks like my pack is doing fine.
I started having a torque issue last August (first when I really noticed it) and it has slowly gotten worse. I have a very steep 10' ramp I drive up from my boat lift in my back yard and the cart has been struggling to make it up. The cart used to climb it in a hurry and I think my motor has just gotten old and needs a good rebuild. It is a 91 36 volt. Hopefully I can get it off easy and get it to Plum Quick for the Bandit rebuild. |
02-17-2014, 06:08 PM | #9 |
Gone Wild
Join Date: Jun 2008
Location: Texas Hill Country
Posts: 397
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Re: 48v pack voltage while under a load??
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02-17-2014, 07:02 PM | #10 |
Gone Wild
Join Date: Nov 2012
Location: Ontario , Canada
Posts: 609
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Re: 48v pack voltage while under a load??
I've had as low as 43 - 44 but that was when it was only 25 degrees F out , in the fall and two people going up hill , temp . Makes a huge difference on battery performance
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