Goal Zero Sherpa 100PD vs Maxoak K2 Portable Battery Bank for Travelling

Goal Zero Sherpa 100PD vs Maxoak K2. Even with two 100aH Lithium in the car I still carry portable power banks for my camera equipment, iPad’s and to keep the laptop running when transferring files. In this review, I look at the Goal Zero Sherpa 100 PD a battery bank as well as a bit older Maxoak K2 a whopping mAh battery bank.