... to 500 timesIndicators:1 power LED indicator; 4 battery level LED indicators(Use/Low/Mid/High)Protection Functions:Built-in protection ... Samsung, Motorola, Nokia, Sony Ericsson, HTC, iPhone and, etc; 1)High quality portable battery pack adds plenty hours of play time to ... and over temperature, safe and energy-saving;7) Built-in battery tester button with battery level and charging LED indicator;8) ...