BigM Solar Charging Power Bank for apple & android devices iphones

BigM solar charging power bank has dual USB. This can charge 2 smartphones simultaneously or a tablet at full speed. This offers intelligent security protection, avoids over-current, over-voltage, over-load, and short circuits. Five pilot indicators indicate the status of the battery charger. Green light on when charging by the solar and blue light on when USB charging. This solar power bank is ideal to use during off-grid camping, hiking, traveling.