The newest product in Griffin’s tough Survivor line, Survivor Power Bank ($60) is a rugged battery which comes with a lifetime guarantee. A 10,050 mAh battery, Suvivor Power Bank boasts 6.6-foot drop protection. A single 2.1A USB charging port can fully recharge an iPhone 6s Plus three times, or an iPad Air 2 once, according to Griffin. The black matte rubber exterior includes a seal at the top to protect the power bank from water and dust.…