Dui ni shuo de dui
10 kW
A few remarks/suggestions from the screenshots provided:
-Cell High protect is ok at 4.2V, but cell high recover is a bit low, meaning if after charge the battery stabilizes at a voltage higher than this then the BMS will remain shut off, not allowing you to ride. I suggest you put is a bit closer to 4.2V than it is right now.
-Pack voltage is ok at 84V, it's correctly set up. Though you'll probably never actually reach this voltage, the cell cutoff voltage will get there first. On my battery packs I prefer to have the total pack voltage reached before the maximum cell voltage in normal conditions, but I guess it's a matter of preference
-Cell low protect and recover should be set up according to the dischage curve of your cells. I don't have the data for your cells so I can't say if it's correct. Here also, there's really nothing to gain to set it too low, seaching for the last tiny percents of capacity will really decrease your battery life, so I usually suggest to cut off right after the voltage starts to decrease at the end of the curve (hopefully you'll get what I mean by looking at a discharge curve, if not already done :wink: )
-Cell diff protect is too high in my opinion. When your cells drift apart so much that it reaches one volt they are already long gone and it's very, very risky to keep using them, especially during the charge process. I'd set it up at 0.2 or 0.3V, which is already a lot. If at any point in your battery's life you see the difference between the best and the worst cell reaches this value then it's time to stop using the pack immediately and sent it to be repaired.
-Cell high warning should be lower than cell high cutoff. You want the BMS to beep and alert you before it reaches the cutoff value. But if the beeps annoy you then you can also leave it like this, up to you. I like for it to beep because it can tell if there is an issue while riding (in this case it would signal an issue with regen for example).
There are also some other very important parameters like current discharge, short circuit protection and stuff like that but I don't see them on the screenshots so I can't comment on those.
Hope this helps, :wink:
-Cell High protect is ok at 4.2V, but cell high recover is a bit low, meaning if after charge the battery stabilizes at a voltage higher than this then the BMS will remain shut off, not allowing you to ride. I suggest you put is a bit closer to 4.2V than it is right now.
-Pack voltage is ok at 84V, it's correctly set up. Though you'll probably never actually reach this voltage, the cell cutoff voltage will get there first. On my battery packs I prefer to have the total pack voltage reached before the maximum cell voltage in normal conditions, but I guess it's a matter of preference
-Cell low protect and recover should be set up according to the dischage curve of your cells. I don't have the data for your cells so I can't say if it's correct. Here also, there's really nothing to gain to set it too low, seaching for the last tiny percents of capacity will really decrease your battery life, so I usually suggest to cut off right after the voltage starts to decrease at the end of the curve (hopefully you'll get what I mean by looking at a discharge curve, if not already done :wink: )
-Cell diff protect is too high in my opinion. When your cells drift apart so much that it reaches one volt they are already long gone and it's very, very risky to keep using them, especially during the charge process. I'd set it up at 0.2 or 0.3V, which is already a lot. If at any point in your battery's life you see the difference between the best and the worst cell reaches this value then it's time to stop using the pack immediately and sent it to be repaired.
-Cell high warning should be lower than cell high cutoff. You want the BMS to beep and alert you before it reaches the cutoff value. But if the beeps annoy you then you can also leave it like this, up to you. I like for it to beep because it can tell if there is an issue while riding (in this case it would signal an issue with regen for example).
There are also some other very important parameters like current discharge, short circuit protection and stuff like that but I don't see them on the screenshots so I can't comment on those.
Hope this helps, :wink:
