I just got a pigcig from lecig.com. They sent me a battery and a USB rapid charger. Problem is, I dont have a wall charger for it. I read somewhere that you shouldnt plug this USB charger directly into your computer, and I wanna use my iphone wall charger for it, but not sure about the amps. The iphone charger puts out 5V and 1 amp. The USB says it will accept 5V and 0.3 amps. I dont wanna kill this batt. I believe the battery is 650 mAh. someone please help!