I bought a Maxx Products HD LED Switch and drilled holes on the side of the fuselage for it. This switch is the ON/OFF switch for the receiver power and has a slot for inserting the charging cord from the transformer. That way, I won't have to remove the wing to charge the receiver battery. The switch also has 3 LEDs to quickly check the battery charge. This is only for quick visual indicator to let me know if there is a problem. I will still charge properly and also have a voltmeter that I will use to verify the charge.