Plugging wireless charger

[Android Central Question]

Is it safe to plug wireless charger into an extension cord and leave it 24/7?????

 

[SpookDroid]

Just as safe as plugging any regular charger and leaving the cable unplugged from a device (unless it's a very cheap, poorly made, no safety measures charger). The charger isn't actually outputting power unless a compatible coil is placed on it. However, just as with any device, idle energy IS consumed.