Originally Posted by
Cuppa
Thanks. I guess I have to eat my words. In that link Redarc are more specific in that they state a BMS is required.
“CAUTION When using the Battery Charger to charge a Lithium Iron Phosphate battery, only batteries that feature an inbuilt battery management system featuring inbuilt under and over voltage protection and cell balancing are suitable”.
I had thought that when they referred to the ‘battery set point’ to change to constant voltage that they were referring to some sort of crude on/off BMS based only on the average voltage across the cells. I guess I was wrong. Nevertheless I still cannot find what it needs to ‘see’ in order to change to constant voltage (i.e. how it determines the LiFePo4’s are ‘full’ (or ‘full enough’). I obviously don’t understand how the Battery Management System works in conjunction with the charger if that set point is not user adjustable as I was of the impression that the BMS controlled the switching on & off of the constant current? Can you enlighten me?