for my power source i have an ofna pro power 18 and the charger doessn't stop half way but it doesn't go all the way to the end with the 6s batteries it never did that with 2s even if sometimes it took a whyl

the last bit of charging just takes more time with larger batteries. You are balancing 6 cells now instead of 2. Cells that are too high have to be discharged. I'm willing to bet if you just let it go it would eventually finish the charge, it just slows down a lot at the end because of balancing. The fact that it worked with the blinky further leads me to believe this. You're assuming you are smarter than the charger and shutting it off before its done. Just let it go. An out of balance pack could take upwards of two hours for a complete balance charge, while thats unlikely, you have a new pack that needs to be balanced and conditioned, let the charger do its thing.

may be you're wright paralyzed but after i did a charge cycle i restart a balance mode and after 20 min the thing was going down instead of going up it started at 25.2v and when i stopped it it was at 25.01 i think and as for the cells when it started i had one at 4.2 (always the same ) and the others at 4.19 when i stopped it the highest one was at 4.18 and the others at 4.15 and by the way i really don't think that i'm that smart lol