Almost exactly.
The nominal voltage per cell of a LiOn is 3.6 Volt and the nominal voltage of a LiPo cell is 3.7 Volt.
If you charge a Lipo like you do (I assume it is a LiOn charger) then the lipo will be for +/- 90% full instead of 100%.
It is not dangerous for your lipo cells, it is just a few minutes less flights.
Don't do it the other way around, charging LiOn's on a LiPo charger, you overcharge the cell and that is very dangerous.[sm=thumbdown.gif]