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Unread 11-12-2010, 04:38 PM   #1
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Default battery load test results w/ new purple

As some of you know, I just got my new purple installed yesterday. Setup is 08 CC IQ over 6' lift, 22' tires, stock controller, stock cables and PQ "the bandit" motor. My top speed is 23.66 mph when I should be at 25-26 mph ideally. Some of you asked about battery condition so I decided to load test them in series as well as individually. Method was to connect meter with alligator clips to - mount leading to selonoid and + mount leading to OBC to test in series. Next, connected meter to - and + battery mounts individually. First reading was taken while batteries were at rest, then under load (noted lowest meter reading point after flooring it followed by highest meter reading point). Please let me know your thoughts. These are the results:


At rest:
In series 50.8
Individually 12.6 12.7 12.7 12.7

Under load:
In series
1st reading 43.6
2nd reading 47.5

Under load:
Individually
1st reading 11.1 11.1 11.1 11.1
2nd reading 11.8 11.8 11.8 11.9

Cables and motor were cool/warm after testing.

thx
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Unread 11-12-2010, 07:18 PM   #2
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Default Re: battery load test results w/ new purple

I figured you should be closer to 28mph. All looks good, maybe 4ga cables will help. Have you talked to PQ?
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Unread 11-12-2010, 07:23 PM   #3
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Default Re: battery load test results w/ new purple

yep, they thought it might be my battery pack but as you see those are the results. Tire pressure is fine. I adjusted the brakes but I can push the car with one hand. The front tires are slightly towed in, barely visible to the eyes. I still have regen braking. Donno man!
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Unread 11-12-2010, 07:26 PM   #4
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Default Re: battery load test results w/ new purple

After a couple of weeks, motor should brake in and maybe get one more mph (once commentator set in nicely). Before motor I was running high 19"s just fyi. thx
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Unread 11-12-2010, 07:40 PM   #5
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Default Re: battery load test results w/ new purple

You are 1.24 mph off of your target speed. When was the last time the differential oil and rear wheel bearings where changed?
Every cart is different, front alignment and wheel bearings come into play also... There are just about as many factors as there are moving parts in the cart that play into the equation....
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Unread 11-12-2010, 08:49 PM   #6
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Default Re: battery load test results w/ new purple

I agree Scotty that's exactly how much I feel we're off. That's why I feel I can squeeze it out somehow. I changed the gear oil to 80-90 gear oil. Bearings seem fine cause when I lifted cart in the front and rear to install lift, they spun nicely, no sound or resistance. The only thing I can think of is the brake adjustment I recently did. Also, when I installed lift kit, the rear passenger side brake cable does not have much slack cause I didn't use extension cable. But again, I can push the cart with one hand pretty effortless and it seems good. I will revisit those areas however. Since I purchased the cart completely stock w/ speed code 2, max speed was just over 11 mph. After lift kit about 15 and with speed code 4, almost 20mph.
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Unread 11-12-2010, 09:04 PM   #7
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Default Re: battery load test results w/ new purple

That 80w90 gear oil is probably shaving off some speed.. Most CC sparky transaxles are designed to use 30W engine oil.. I'd drain that molasses out and fill it with a good 10w30 synthetic engine oil.. You run the risk of burning up the upper bearings with the heavy gear oil.. The lighter oil slings to the top easier..

I'm running Mobil1 10w30 in Ike's transaxle with no issues.. He's got a GE D395 "Beast" churning a set of 8:1 gears, with a 500A Alltrax controller.. Top speed is a solid 27MPH..
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Unread 11-12-2010, 09:08 PM   #8
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Default Re: battery load test results w/ new purple

Agreed! All CC Sparklers run 30w diff oil.
But seriously 1mph? .... is this the cart with the 6g cables?
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Unread 11-12-2010, 09:11 PM   #9
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Default Re: battery load test results w/ new purple

I'll do that thanks. But it seems that thru every upgrade. You know, first wheels, then speed code, etc. Ive always been around 1-2 mph behind. Anyhow thanks for all your suggestions. Every bit helps. Will work on it tomorrow and get back to you all.
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Unread 11-12-2010, 09:12 PM   #10
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Default Re: battery load test results w/ new purple

yes Scotty, 6ga but stock controller.
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