|
Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
|
Thread Tools | Display Modes |
10-13-2009, 06:57 AM | #21 |
Conservatively Wild
Join Date: Aug 2009
Location: Below the Mason Dixon
Posts: 3,610
|
Re: Loosing power going up hills
Removed...
|
Today | |
Sponsored Links
__________________
This advertising will not be shown in this way to registered members. Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum |
|
02-19-2011, 04:59 AM | #22 | |
Not Yet Wild
Join Date: Oct 2010
Location: Buckeye, AZ
Posts: 74
|
Re: Loosing power going up hills
Quote:
Did a controller upgrade fix the issue? Any other upgrades? Thanks. |
|
02-19-2011, 08:33 AM | #23 |
Gone Wild
Join Date: Dec 2010
Location: Texas... Why live anywhere else???
Posts: 266
|
Re: Loosing power going up hills
The voltage is going to go down as power is drawn from the batteries to climb hills and go fast. Mine has dropped to as low as 28v when going up a steep incline. Everything is normal as long as the voltage goes back up after sitting idle for a bit. After I climb a bunch of hills, I'll sit for a few seconds and I can see the voltage go from 34 to 36 to 36.5, etc.. All the way back up.
|
02-23-2011, 10:02 AM | #24 |
Not Yet Wild
Join Date: Oct 2010
Location: Buckeye, AZ
Posts: 74
|
Re: Loosing power going up hills
If the voltage bounces back up, how do you know when you have reached the point at which the batteries need to be charged?
Doing some testing this weekend it seems like the voltage bounced back up fairly quickly in the first 30 seconds or so and then it was a slow/gradual increase. It's kind of like the microwave popcorn rule. I waited until there was more than 3 seconds between "pops" (voltage increases) and then took the voltage reading. In this case that was right around 30 seconds. I drove the cart for about 10 miles and got to the point that I could notice a lack of power. I stopped. The voltage was at about 35 volts but was quickly increasing. I waited 30 seconds or so to the point that the voltage increase was slow/gradual and measured 36.3 volts (50%). Since I could actully feel the lack of power and the battery pack was reading 50%, I took it home. After I got it home and let it sit for about 30 min, the pack voltage had increased to about 37.1 volts (70%). Now I know the cart was in need of a charge because it barely had enough torque to make it up the driveway. Is the voltage that the pack eventually returns to a true representation of the state of charge? Apparently not. I have just been using a multimeter clipped to the battery pack for the time being. I am seeing more and more the benefit of having constant indication of the pack voltage. It feels like the only way to know the true state of charge it to see what voltage the pack is at immediately (within 30 secs) of having the pedal fully depressed. I guess I need to break down and buy a load tester and eventually a voltage gauge for the cart. I'm open to any feedback. |
02-23-2011, 10:14 AM | #25 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,419
|
Re: Loosing power going up hills
Whether you have a multimeter duct taped to the seat or an in-dash LED voltmeter, the cart is the load tester. Take note of the voltage drops when the batteries are fully charged. That's 38.2v after 12 hrs of settling. Drops are likely 35-34v up steep hills with a 30sec recovery to 38.0 This could be used as a reference. 28v could be used as a max low voltage drop. I think the 30sec readings are correct. Your batteries may be getting old. Invest in an inexpensive needle reading hydrometer instead of the load tester. and test fully charged & fully settled batteries.
|
|
|
Similar Threads | ||||
Thread | Forum | |||
Loosing power after 5 minutes | Electric Club Car | |||
Series cart, what am I loosing | Electric EZGO | |||
Loosing power | Electric EZGO | |||
loosing power | Gas EZGO | |||
loss of speed and power up hills | Electric EZGO |