Although it's rather nondescript as battery packs go, RAVPower's Dynamo 14000mAh External Battery Charger ($130) does stand out for its large capacity, and its suspiciously low $43 price tag on Amazon. The plastic block is equipped with two full-sized USB outputs -- one for 1-Amp charging, one for 2-Amp -- and comes with two cables and a variety of plugs, although no Lightning connector. Full-sized iPad users should expect to get about 80% of a full…
