Portable Charger 26800mAh_ KUULAA Power Bank Ultra_High Capacity Portable Battery_ 5V 2.1A External Battery Pack Dual_input and Dual_output Cell Phone Battery Charger for iPhone Samsung and etc _Purple_

Usage Instructions : Each battery has its own lifetime. If you want it to accompany you longer, you may need to pay attention to following points: 1. It is like a child who cannot be hungry for too long or eat too much. So when you find that it only has less than 1 grid of power left, please charge it as much as possible. It would be best to charge it before the power turns to be "0". Please turn off the power in time when finding it's fully charged, and please do not charge it for a long time without supervision. 2. It is like your employee, please let him focus on one thing, and don't let it do two tasks at a time. So when you use it to charge your electronic devices, please don't use the charger to charge it at the same time. Otherwise such a busyness will make it strike angrily. 3. It is like your lover and needs your careful care. So please don't let it be hit heavily or fall from a height place, otherwise it will leave you soon.