Also available in an 8000mAh version for a $20 premium, offGRID Smart comes in a plastic housing that’s made to look like brushed metal, rather than the matte black finish of previous offGRID products. Its three ports—one Micro-USB for charging, one 2.4A USB output this time, and one 1A USB output—are all located on the same glossy end of the battery. Instead of just one button on top, there are now two. One controls the power, and…
