Agreed, the bms should mostly be for monitoring purposes only and use the voltage of the pack and not individual cells. This way there is less risk of it discharging the pack by an error.
With 18650 cells you really should hardly ever need to balance. Lipo packs are a bigger issue because those type of pouch cells get damaged easily and need balancing more often.
I wanted to add I dont know for sure yet how the adaptto bms drains the cells and it may not draw any current if the 4 prong connector is unplugged.
I will keep my eye on this and let you know what I find.
With 18650 cells you really should hardly ever need to balance. Lipo packs are a bigger issue because those type of pouch cells get damaged easily and need balancing more often.
I wanted to add I dont know for sure yet how the adaptto bms drains the cells and it may not draw any current if the 4 prong connector is unplugged.
I will keep my eye on this and let you know what I find.