Nonsense! The TouchPad Charger has proprietary configuration on the Data lines inside the Charger to allow the TouchPad to recognise that the Charger is capable of charging it. If the TouchPad doesn't sense this, it will give you the message you are seeing and set itself in Trickle Charge mode.
Originally Posted by Shadavis08
If, by "standard 2-amp charger" you mean the HP Barrel charger then you are correct that the TP takes about 3.5 hours to charge.
Originally Posted by Semma2
With other chargers not specifically configured for the TouchPad, the TouchPad will NOT draw more than 500mA from the charger. When switched OFF, this may be enough to charge the TouchPad in ~ 12 hours but with the TouchPad running, the TouchPad uses ~600mA so will slowly discharge the battery.