What chargers do you guys currently use? Right now I'm charging my batteries via USB in my istick 100w. I know it's not the preferred way but I keep an eye on it while it's on the charger. I plan to order this one from fasttech later this month. Was gonna order a nitecore off Auction. But i can't justify spending so much when I can just put in an order with fasttech and wait a few weeks for half the price