Originally Posted by rpage53
The FAST mode in figure 4 doesn't seem to indicate any balancing at all. Sure that it is supposed to do some?
Of course it was a balancing there
.75A is nothing against 6A charging
It was a pack straight from Dewalt container and some of the cell were realy behind.
Without balancing power the red cell would never go up to meet the rest of the pack. When the highest cell hit the 3.7V mark balancer has reduced the current couple of times for a next couple of minutes allowing the balancing boost to be more and more effective.
As you can see it did not take long to bring them in the ballpark of 25mV
Bar display shows time about 17 minutes and you can see the power is there
Red cell gets 100% at 750mA.
It seems like in FAST mode only lowest cells are charged
in Equal mode all needed take a proper share - the other end ( 57th minute)