- Nov 30, 2019
You mean this "3.Set the power supply constant current to .2 C or less. 3.1.While the power supply is disconnected from the batteries and turned off, short the leads together." ?Source is the "Top Balance Tutorial" on page 1 of this thread. Section 3 (https://diysolarforum.com/resources...ls-using-a-low-cost-benchtop-power-supply.65/)
Before you do anything else verify your bms cell voltages with your dvom.Using "home office" as I am just testing that things are "working right" and the app is reading accurate. My cells have now evened out with a 0.014v difference, and they show as "yellow" at 3.24-3.31. These were top balanced, and topped off prior to setting up in series 3 days ago. So for them to already be at that range (60-70% based on this page: https://diysolarforum.com/threads/lifepo4-voltage-chart.3156/) seems a little "off" for these cells having been JUST balanced...so not sure if batteries or app...
If they don't agree then you have problems that will be made worse if you discharge the pack.