Finding the right backup battery pack to keep your gadgets running can be a tiring search. With so many options to choose from, choosing the right pack all comes down to price and performance. It doesn't matter how good it looks because all you should care about is what's on the inside. Formally known as SGP, Spigen SGP's first battery pack offering is the Kuel F60Q, generously equipped with 6,000mAh of battery goodness. We love Spigen SGP's wide array of cases, but can the Kuel F60Q prove itself to be a valuable accessory you'll want to have in your gear bag?