[Anonymous]

Hi Mike.
You will be able to plug in to a usb power outlet to your mains for a better charge on the ActivSlate. However if this fails to 100% charge we recommend contacting Promethean Support directly and provide the serial number of your ActivSlate so we can advise further.

Please quote case 00483631 when you contact us so we can relate this information from this forum thread.
Thanks