How can I make my Lenovo ThinkPad tablet charge up faster? It takes a very long time (half a day) to charge up with a USB 2.0 charger plugged in the wall outlet.
Put your device to sleep mode for faster charging.
check o/p voltage and current of your adapter(charger) and use higher o/p current adapter(this option might produce more heat while charging so could damage your device, proper cooling while charging expected)