Im a bit on the OCD side and I like things to work well, as defined by me.
I decided to go with an electrodacus bms for several reasons but I did like the fact that it wasnt mass produced and made in North America.
Long story short, the individual cell voltages are not as accurate as I though they would be. What I mean by this is that when all the cells are the same voltage, the display on the electrodacus says there is a 10mv deviation between high and low. Connections are all solid. I have checked/cleaned them countless times.
I was told by Dacian that that is within spec for the components. When a manufacturer is pumping out components, yes, there is going to be tolerances but when an individual is assembling a device ( in the same way that we need to match cells to work together) I assumed that a conscientious individual would match components to work together in the device. Personally I dont really care if the BMS reads 10mv high or low, but the individual channels should all have the same deviation so the displayed values are representative of what they actually are relative to the others.
This was after I parallel top balanced the cells, configured into a 12v pack, discharged and re top balanced using the active balancer to see how close things were. (very minimal intervention required by the balancer) I checked cell voltages directly with 2 different DMM and the voltages were all identical.
So, again, I ask: Am I expecting too much?
The SBMS0 has a balance function. Should I disable that? The SBMS0 came with very conservatives settings and I plan to stick with those for operation but should I adjust the high and low cut offs to account for the outliers?
Thanks for any and all feedback.
I decided to go with an electrodacus bms for several reasons but I did like the fact that it wasnt mass produced and made in North America.
Long story short, the individual cell voltages are not as accurate as I though they would be. What I mean by this is that when all the cells are the same voltage, the display on the electrodacus says there is a 10mv deviation between high and low. Connections are all solid. I have checked/cleaned them countless times.
I was told by Dacian that that is within spec for the components. When a manufacturer is pumping out components, yes, there is going to be tolerances but when an individual is assembling a device ( in the same way that we need to match cells to work together) I assumed that a conscientious individual would match components to work together in the device. Personally I dont really care if the BMS reads 10mv high or low, but the individual channels should all have the same deviation so the displayed values are representative of what they actually are relative to the others.
This was after I parallel top balanced the cells, configured into a 12v pack, discharged and re top balanced using the active balancer to see how close things were. (very minimal intervention required by the balancer) I checked cell voltages directly with 2 different DMM and the voltages were all identical.
So, again, I ask: Am I expecting too much?
The SBMS0 has a balance function. Should I disable that? The SBMS0 came with very conservatives settings and I plan to stick with those for operation but should I adjust the high and low cut offs to account for the outliers?
Thanks for any and all feedback.