Amazon.com: Anker® 40W 5V / 8A 5-Port Family-Sized Desktop / Travel USB Charger with 5-Foot Power Cord for iPad, iPhone, Samsung Tab, Android Devices and Virtually All USB-Charged Devices: Cell Phones & Accessories
Anker 40W 5V / 8A 5-Port Family-Sized Desktop Charger
i will say that i don't have this charger, but i have other Anker products and they work great.
supposedly you can charge four devices at 2 amps each at the same time, and the reviews are pretty solid.
unfortunately i believe Red Zone 8 charges at a maximum of 0.5 amps regardless of how much the charger can provide, but i would rather have extra capacity than not enough.
i don't know if i will get it, but it sure looks good.
Mtbr's 2016 Winter Biking GearReviews and Roundups
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