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11-23-2024, 03:41 PM
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#31 |
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Not Yet Wild
Join Date: Apr 2017
Posts: 23
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Re: 16 Cell LiFePO4 48V Pack Build - Tomberlin
It's all put together now but it is not working. I am getting the error "Cell count is not equal to settings"
I notice that cell 1 in the app has red dashes next to it. Is that normal (I see pictures in the manual where cell 1 is in red) or is the BMS trying to tell me that the problem is the wiring to cell 1? If that is not what it is trying to tell me I guess I need to manually check continuity for every wire? I have 52.9v on the cells so everything seems to be good there. I have not hooked up a charger to the pack yet. My settings are attached, maybe there is a problem there because all I did was to select the LiFePO4 preset and set the number of cells (supposedly) and the battery capacity. EDIT: I manually checked continuity on all the wires from the BMS to the cells and they are all good. |
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11-23-2024, 04:50 PM
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#32 |
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Born to be Wild
Join Date: Feb 2019
Location: Palm Harbor Florida
Posts: 3,497
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Re: 16 Cell LiFePO4 48V Pack Build - Tomberlin
Check all your connections again. Check the plug into the BMS. Do you have the pos and neg small wire hooked up to the BMS correctly? I can’t see clearly enough but do you have the B+ and B- wires for the JK BMS hoked up to what is the 48 volt output of the pack?
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11-23-2024, 05:38 PM
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#33 |
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Not Yet Wild
Join Date: Apr 2017
Posts: 23
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Re: 16 Cell LiFePO4 48V Pack Build - Tomberlin
Yes the pos and neg for the BMS are hooked up to the 48 volt output. Is that not correct?
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11-23-2024, 05:47 PM
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#34 |
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Born to be Wild
Join Date: Feb 2019
Location: Palm Harbor Florida
Posts: 3,497
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Re: 16 Cell LiFePO4 48V Pack Build - Tomberlin
Yes, as long as you have the small sense wire from the BMS labeled B+ and B- hooked up that is correct. I only see one ring terminla on your + and - on the pack.
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11-23-2024, 06:08 PM
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#35 |
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Getting Wild
Join Date: Mar 2024
Location: ontario/florida
Posts: 132
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Re: 16 Cell LiFePO4 48V Pack Build - Tomberlin
Something seems off to me, your cell 16 is the most negative cell? where does that #16 sense wire go on the BMS ?
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11-23-2024, 06:26 PM
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#36 |
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Born to be Wild
Join Date: Feb 2019
Location: Palm Harbor Florida
Posts: 3,497
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Re: 16 Cell LiFePO4 48V Pack Build - Tomberlin
The red wire on the left labeled B+ has to go to your #16 cell for your positive output. The black wire on the right has to go to the negative output.
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11-23-2024, 06:27 PM
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#37 |
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Born to be Wild
Join Date: Feb 2019
Location: Palm Harbor Florida
Posts: 3,497
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Re: 16 Cell LiFePO4 48V Pack Build - Tomberlin
The red wire on the left labeled B+ has to go to your #16 cell for your positive output. The black wire on the right has to go to the negative output #1 cell.
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11-23-2024, 08:29 PM
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#38 | |
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Not Yet Wild
Join Date: Apr 2017
Posts: 23
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Re: 16 Cell LiFePO4 48V Pack Build - Tomberlin
Quote:
Working like a champ now! |
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11-23-2024, 08:55 PM
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#39 |
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Born to be Wild
Join Date: Feb 2019
Location: Palm Harbor Florida
Posts: 3,497
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Re: 16 Cell LiFePO4 48V Pack Build - Tomberlin
Always happy to share what I have learned. Enjoy the ride!
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