... battery power 75%, 2 LED lights on, battery 50%, 1 LED light on, battery power 25%;0 ... LED lights, battery power is about to run out, should catch up on ... while charging, indicating that the internal battery is fully charged when four LED lights at the ... is good for your electrical, standby micro-power consumption and leisure is not power, more at ease! ! 5000mA Solar mobile charger ...