Donniesuits
New Member
- Joined
- Aug 19, 2020
- Messages
- 18
Hello,
I have a 100ah LifePo4 battery with internal BMS. I am using Overkill Solar app to access the BMS. My first question is can someone show what the best settings are for each of the configurable settings. Screen shot is fine, then I can just copy those into my battery BMS.
Second question has to do with the cell capacity voltage. I have seen online on several websites as well as in the BMS specs that the values from 100% to 10% should be set starting at 3450mv and proceed down to 10% capacity set at 3215mv (see Screen shot). These are not accurate if you do the math, I have attached a spreadsheet that calculates the MV voltages from 100% to 0% based on cell voltages of min voltage 2500 and max voltage of 3450. If we are setting the full voltage at or around 3500mv and the low voltage and cut off at or around 2500 why would we not have a scale that represents this? Obviously, 3215mv setting for 10% capacity is no where near 10% if you have your low cell voltage set at or around 2500mv. 10% would be 2595mv. Should I change these settings to match what my table shows for each calculated drop in cell voltage?
I have a 100ah LifePo4 battery with internal BMS. I am using Overkill Solar app to access the BMS. My first question is can someone show what the best settings are for each of the configurable settings. Screen shot is fine, then I can just copy those into my battery BMS.
Second question has to do with the cell capacity voltage. I have seen online on several websites as well as in the BMS specs that the values from 100% to 10% should be set starting at 3450mv and proceed down to 10% capacity set at 3215mv (see Screen shot). These are not accurate if you do the math, I have attached a spreadsheet that calculates the MV voltages from 100% to 0% based on cell voltages of min voltage 2500 and max voltage of 3450. If we are setting the full voltage at or around 3500mv and the low voltage and cut off at or around 2500 why would we not have a scale that represents this? Obviously, 3215mv setting for 10% capacity is no where near 10% if you have your low cell voltage set at or around 2500mv. 10% would be 2595mv. Should I change these settings to match what my table shows for each calculated drop in cell voltage?