When one cell gets topped off, the charger goes into balance mode. The balance circuit on most chargers is around 1A or less, which slows things waaay down. On a 6 cell pack, it would take a very long time as it balances 6 different cells in balance mide, and that is if the charger doesn't hit a...
Nino is correct. I would never try to charge a 6s with one of those chargers. Will it charge it? Yeah, maybe by sometime next week.
If you want a decent charger for 6s, you're going to need to shell out a little more money. The Hota D6 Pro is $118 on racedayquads.com. that is the charger I...