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Old 10-11-2019, 12:04 PM   #11
woolybaseball
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Default Re: Precedent Leaf Lithium Conversion Checklist

BMS tap diagram attached.
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Old 10-11-2019, 12:16 PM   #12
woolybaseball
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Default Re: Precedent Leaf Lithium Conversion Checklist

I will change some of these as I start testing my pack. I have mine pretty conservative until I can test LV cut off under a load and my range.

Parameters per Jason's Suggestion for Golf cart
Over Charge Protection(P) Voltage 4.15 ( I did 4.1)
Over Charge Release(R) Voltage 4
Over Charge current 100
Over Discharge Protection(P) Voltage 3(I did 3.6)
Over discharge Release(R) Voltage 3.2( I did 3.7)
Over Discharge current 600
SOC--- Battery gauge 20
Battery Temperature 65c ( I did around 120 degrees F)
Difference(Diff) of battery Temperature(Temp) 15c (I did around 50 degrees F)
Difference(Diff) of cell voltage 800( I had to upgrade firmware for this to work)
Temperature Unit ℉
Key Beeper on
LCD Back-Light time 10
Cut-Off Delay Time 10
Current Calibration need not change unless calibrate current again ( I re calibrated mine and that seemed to make it more accurate)
Temperature Alarm on
Cell Empty Voltage 3 (3.6 matches P values)
Cell Full Voltage 4.1 (4.1 matches P values)
Balance Start Voltage 3.6
Balance Stop Diff Voltage 60(still playing with this while cells are balancing)
Balance in Charge on
Balance in Discharge off
Balance in Storage on
battery capacity 132AH(I did 120AH assuming mine has lost some)t
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Old 10-15-2019, 10:12 AM   #13
MyCousinVinnie
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Default Re: Precedent Leaf Lithium Conversion Checklist

Thanks!!
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Old 10-15-2019, 03:27 PM   #14
MyCousinVinnie
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Default Re: Precedent Leaf Lithium Conversion Checklist

Also, I forgot to say - it's interesting you used positive, and I did negative. Mine's working now, so not sure it matters. Mine's in my lithium build thread, also attached below. One or two folks said it's correct, so I guess there's more than one way to do it.
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Old 10-20-2019, 06:20 PM   #15
woolybaseball
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Default Re: Precedent Leaf Lithium Conversion Checklist

I think you are still using positives, the negative‘s busbars are in series with the same positives I used, so it’s still kind of the same thing. I don’t know what benefit it makes as long as there is continuity relative to the correct side of the cell.
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Old 10-23-2019, 03:54 PM   #16
woolybaseball
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Default Re: Precedent Leaf Lithium Conversion Checklist

Installed picture.
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Old 11-08-2019, 09:13 PM   #17
langnolen
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Default Re: Precedent Leaf Lithium Conversion Checklist

Be nice..Whoever can answer this for me; would be greatly appreciated. Just want to make sure this is correct before I start on this project. My leaf batteries came in today, with same set up used here. The best way to ask is attaching the pic and drawing arrows on it;). thanks for the help in advance.
Also is there a way to attach pics in PM's; couldn't find it?
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Old 12-31-2019, 09:21 AM   #18
MyCousinVinnie
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Default Re: Precedent Leaf Lithium Conversion Checklist

langnolen,

I completely missed your post here. Sorry no one answered it. The short answer is that it's hard to tell from your drawing. It looks correct. If you want me to send me my drawing in power point so you can edit it and repost, let me know through private message.
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Old 01-02-2020, 04:13 PM   #19
langnolen
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Default Re: Precedent Leaf Lithium Conversion Checklist

I got it all taken care of..thanks for the reply. Woolybaseball helped me out a lot. I’m up and running and even got into 3D printing now;). Unfortunately rotating pictures not so much:/.
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File Type: jpg 9C751A0A-D291-4575-86BE-DB733DB6C3AA.jpg (100.2 KB, 0 views)
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Old 01-03-2020, 05:36 PM   #20
Bobbob
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Default Re: Precedent Leaf Lithium Conversion Checklist

Nice to see you mounted the LCD display on steering wheel. I too have been thinking about getting 3D printer and learning how to use. Have a number of projects I want to do including same display you have but may use Zeva instead of Chargery display.


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