@spinningkick The light on the charger will not turn on if the battery is already charged. Do not forget to check the other side of the USB as well. The light is only going to show on one side. If you are certain that it's fully charged, verify by pairing in Blockly and take a look at the battery percentage on the bottom left. Try a takeoff and land as well. If the battery percentage is still low even after you have been charging, please let us know!