Question about , lipo's amps, and fast chargeing

[snellemin]

Wussies.

You can charge the blue lipos at 5c. Nothing happens with charging at a high rate. I've been charging my 5000mah packs at 30-40A(depending on power supply) ever since I got the Powerlab.
Ebike packs have more then 50 charges at that charge rate for the past month.
The thing is getting more lifecycles out of them and I'm trying that out with 4.1V per cell cutoff and not going below 20% capacity.