The Kogan Agora series requires 'trickle charging' when the battery is completely flat.
This means that the devices do not store a battery reserve, and as such, they require an initial charging period of up to three hours before they can be powered on to be charged to full.
It may appear that the phone is not charging when completely flat, as it does require this trickle charging period before the screen can be powered on.
If you are unable to power on your Kogan Agora after three hours of charging, please contact our support team for further assistance.