This power bank is designed for various electronic devices. It comes with short circuit, overcharge, over-discharge and overload protection for enhanced safety. Its smart power management ensures stable power supply.

• Battery type: lithium-ion polymer.
• Battery capacity: 4,000mAh.
• Input: 5V/1000mA.
• Output: 5V/1,500mA.
• Cycle life: 500 times.
• Transfer efficiency: 85%.
• Appearance: metal body, ultra-thin design and the thickness is only 3.0mm.
• Protection function: overcharge, over-discharge, overload, short circuit and reverse connection protection.
• Display mode: anti-dazzle design with buttons and breathing light, three colors light to indicate the power.