solar charger, 20000mah solar power bank waterproof portable charger external battery packs with dual 2 usb/led flashlights port for all cellphones, tablets, and electronic devices errbbic <b>20000mah solar power charger portable power bank</b><br><br>1 stylish, portable, user-friendly and durable for on the go use.<br>2 high capacity, solar-powered, environmentally-friendly.<br>3 emergency charger for cell phone and other compatible devices<br>4 dual usb port, enables you to charge 2 different interface accessories<br>5 2 led lights create more convenience for travel<br><br>about the flashlight<br>please kindly follow our steps to use sos and strobe mode.<br>1. long press the side button, two led light will lit on.<br>2. continue to shortly press the side button, it will enter into sos mode. more once, it will enter into flashing. next short press will turn off the light.<br> <br><b>specification: </b><br>battery type: li-polymer battery<br>size: 132 x 80 x 17mm<br>capacity: 20000mah<br>solar power: 1.5w<br>weight: 250g<br>input: micro usb 5v/1a<br>output: usb 5v/2.1a(max); 5v/1a(min)<br><br><b>kindly noted: </b><br>1. in order to fully activate the battery, please charge it via outlet for 10 hours at least at the first 2-3 uses. it means that it the best to use 2-3 times before using it for travel.<br>2. the best operating temperature for solar phone charger is -10°—50°, for security reasons, please don't put it alone in the outdoor parked car or other high-temperature environments.<br>3. keep the usb port and usb cable dry to avoid physical short circuits inside the solar power charger supply and quit working. if the power bank appears swell, smoke or other unusual phenomena, please quit using solar charger.<br>4. if the solar power bank is not used for a long time, it should be charged and discharged at regular intervals to maintain its normal performance. it is best to charge and discharge the solar bank once a month, so as to ensure the best state of the internal battery and effectively extend its service life.<br><br><b>package included:</b><br>1 x 20000 mah external solar phone charger <br>1 x usb cable<br>1 x user manual<br>1 x carabiner