I am in China/Beijing right now and I am using my swedish charger to charge my iPad here. I talked to some people at the Apple store and they told me that i could use my own charger becouse both we in sweden and china have 220w. But i think it charges to fast... It was 3% and I went out for an ~ hour and it was already 30% when I came back. How long does it take for you to recharge it back to 100% again? Not trough a computer.