The Anker 40 watt 5-port USB wall charger is currently selling for just $25 on Amazon and is available in both white and black. The 2nd Gen Astro3 12,000 mAh battery is going for $45 on Amazon, also available in both black and white. It`s hard to recommend one over the other since they fit into such different spaces. If the Astro3 would allow you to both charge and draw power from it to some degree that might help but otherwise these units are for totally unique scenarios. If you have a lot of devices that need to be charged at home or on the road (at the hotel) then the 40 watt 5-port wall charger will be perfect. If you need power on the go while you in your car, covering an event or just don`t have time to sit and watch a phone power meter go up, then the Astro3 is the answer."
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