Please any help to identify the source of my issue would be awesome
I have successfully being using a Bioenno Power Solar Controller – SC-122430T to charge and manage my LiFePO4 batteries since Dec 2020 without any issues.
Recently I have been getting repeated fuse burn outs on the solar panel feed-in side of the solar controller as soon a power is permitted to flow from the solar panels with the LiFePO4 cells connected.
If I disconnect the LiFePO4 cells from the SC122430T battery terminal (middle terminal) I can eliminate the fuse burning out.
When I disconnect the battery and keep the solar panel connected the SC122430T display reads L7 U8 P2 ie
L7: Solar Controller Always On
U8: Voltage from Solar Panel is 9.3V
P2: Battery Full: The charge on the battery is full
With the LiFePO4 batteries disconnected (I get no short fuse burnout) and at the respective terminals
- Solar feed in (left terminal) reads 13.96v
- battery (middle terminal) reads 13.96v
- load (right terminal) reads 13.96v
Is this normal for the SC122430T?
If I connect the LiFePO4 batteries I get the fuse burning out
I wanted to eliminate the SC122430T being the issue before I look at replacing either the BMS or any of the 4 Winston WB-LYP 100AHA cells
Also each of Winston WB-LYP 100AHA voltage measures are a follows
Cell 1 reads 2.428v
Cell 2 reads 2.504v
Cell 3 reads 2.890v
Cell 4 reads 2.938v
Does that look normal or could the short be on one of the cells or a failed BMS?
For the BMS I’m using the PCM-LO4S30-526
https://www.batteryspace.com/PCM-with-Equilibrium-function-for-12.8V-LFP-Battery-Pack-30A-limit.aspx
Any help or approach to isolate my issue would be very much appreciated.
I have successfully being using a Bioenno Power Solar Controller – SC-122430T to charge and manage my LiFePO4 batteries since Dec 2020 without any issues.
Recently I have been getting repeated fuse burn outs on the solar panel feed-in side of the solar controller as soon a power is permitted to flow from the solar panels with the LiFePO4 cells connected.
If I disconnect the LiFePO4 cells from the SC122430T battery terminal (middle terminal) I can eliminate the fuse burning out.
When I disconnect the battery and keep the solar panel connected the SC122430T display reads L7 U8 P2 ie
L7: Solar Controller Always On
U8: Voltage from Solar Panel is 9.3V
P2: Battery Full: The charge on the battery is full
With the LiFePO4 batteries disconnected (I get no short fuse burnout) and at the respective terminals
- Solar feed in (left terminal) reads 13.96v
- battery (middle terminal) reads 13.96v
- load (right terminal) reads 13.96v
Is this normal for the SC122430T?
If I connect the LiFePO4 batteries I get the fuse burning out
I wanted to eliminate the SC122430T being the issue before I look at replacing either the BMS or any of the 4 Winston WB-LYP 100AHA cells
Also each of Winston WB-LYP 100AHA voltage measures are a follows
Cell 1 reads 2.428v
Cell 2 reads 2.504v
Cell 3 reads 2.890v
Cell 4 reads 2.938v
Does that look normal or could the short be on one of the cells or a failed BMS?
For the BMS I’m using the PCM-LO4S30-526
https://www.batteryspace.com/PCM-with-Equilibrium-function-for-12.8V-LFP-Battery-Pack-30A-limit.aspx
Any help or approach to isolate my issue would be very much appreciated.