... : 100-240VAC, 50/60Hz, 0.7AOutput: DC 4.2V, 800mABatteryLi-ion rechargeable battery, 3.7V, 5AHrOperating Time: 5 hours with full ... /review/printing/storage.•Audio and visual alarm•Built-in rechargeable Li-ion battery, up to 5-hour power supply•Automatic shutdown for ...