Electrical switch 2 is an electronic switch for nitro racing. This is not a mechanical slide switch that you have to worry about failing. 

This is a push on/off button switch. This switch is designed to work with 5 cell NiMH or 2 cell Lipo receiver packs. 

There is a low voltage cut off switch to prevent damage to Lipo when this type of receiver pack is being used.

Built in LED battery indicator displays the battery strength when in use. You will have to disconnect your battery for charging as charging is not supported through the switch.