The difference between flying electric and glow is the torque from the electric motor is immediate as opposed to the glow engine. Also be aware the electric is always HOT so as mentioned always remove the prop when doing any work or testing and when at the field make sure the plane is secure (on a flight table) when connecting the battery and arming it.
I've heard good and bad about the switch but you already have it so just enjoy it.
As far as a charger you can look at any of the first three here as an example plus they sell very good lipos for a decent price:
www.valuehobby.com/power-systems/chargers.html
Here is a charge board that will allow up to 6 same size batteries to be charged at once:
www.valuehobby.com/accessories/charge-discharge-wires/parallel-charging-board-deans.html
I don't know what connector the swift uses but you may have to change the planes ESC and the battery you have to Deans connectors if you go the abouve route.