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03-05-2016, 01:09 AM | #1 |
Gone Wild
Join Date: Dec 2015
Location: Texas
Posts: 526
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Battery reminder
I Have a new 36 volt battery pack that has 20 or so charges on it now...
What is the lowest you can take the pack down to before charging? Trying to give my kids a Volt meter number to remember and know when they need to head to the house to put cart on the charger. I have been telling them 37.5, but I think they can probably go further on a charge. Thx Skip Sent from my Nexus 6 using Tapatalk |
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03-05-2016, 08:19 AM | #2 |
Guest
Posts: n/a
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Re: Battery reminder
50% is lowest you can go with out hurting the batteries
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03-05-2016, 08:27 AM | #3 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,419
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Re: Battery reminder
They need to get the pack on the charger by 36.3 volts so anything below 37v and they should be heading home (assuming they are not so far away as to run the pack down 1v coming home).
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03-05-2016, 08:37 AM | #4 |
Card Carrying Old Fart
Join Date: Feb 2012
Location: Kentucky
Posts: 706
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Re: Battery reminder
I thought I read that the 50% figure is a never exceed limit but trying not to go below 80% particularly during the first dozen or so cycles will greatly extend the life of the pack. I have the ScottyB volt meter and have a SOC chart mounted next to it for reference.
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03-05-2016, 08:54 AM | #5 |
Gone Wild
Join Date: Dec 2015
Location: Texas
Posts: 526
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Is it correct to say on 36 Volt cart that upgrading the controller from stock to a dcx400 or anything that is larger than stock, you will go through a battery charge quicker?
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03-05-2016, 11:35 AM | #6 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: Battery reminder
If you are always "trying out" that extra power, then yes. If you drove it exactly the same as you did with other controller (dont accelerate any faster than it could before, keep to same speed), it would use the same amount of juice.
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03-05-2016, 11:36 AM | #7 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Battery reminder
Quote:
Here are the average Amp-Hours used per mile for various setups: 36V - PDS motor - PDS controller in Mild Hill Mode = 3.4 AH/mi (14MPH + Reg Braking) 36V - PDS motor - PDS controller in Freedom Mode = 4.5 AH/mi (18MPH - No Regen) 36V - PDS motor - Alltrax DCX400 controller = 3.8 AH/mi (24MPH + Regen Braking) 42V - PDS motor - Alltrax DCX400 controller = 3.5 AH/mi (28MPH + Regen Braking) How long a battery charge lasts actually boils down to how hard the cart can be driven more than what controller is used. In a nutshell a PDS controller will only pass 300A to the motor while a DCX400 will pass 400A, but the higher amp usage only occurs in during the first few yards off the starting line. From that point on, the motor dictates how many amps are drawn. (There are other factors involved also) Change the "will" to "can" and the statement is correct. ------------- Cgtech hit the nail on the head. Last edited by JohnnieB; 03-05-2016 at 11:39 AM.. Reason: added comment |
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03-05-2016, 01:51 PM | #8 |
Gone Wild
Join Date: Dec 2015
Location: Texas
Posts: 526
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So this information spurs on other thoughts...
If your DCX controller is programmed or dialed back on the throttle, in theory it would seem the charge would last longer? I am pretty sure my teenage kid knows one speed and that is the pedal all the way down. Sent from my Nexus 6 using Tapatalk |
03-05-2016, 02:35 PM | #9 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: Battery reminder
Just like mashing the gas at the stop light uses more gas, hot-rodding your electric cart uses more juice. Dialing back the throttle rate would benefit the longevity of a charge.
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