EasyB
(EasyB)
2
It depends on the cell. Really just look at the datasheets and see what they say.
Charging some high capacity cells like the GA at 1C will damage it. (Testing in the link I posted shows this) 0.5C is recommended.
I found some interesting info on charging recently.
The main effect discussed is how fast the anode can accept the Li ions while charging, and this will be different for different cells.