New high-quality reserve power sources.Guarantee 12 months.If you are not satisfied with your purchase for any reason, you have a full 14-day return policy as a consumer. This backup battery will make sure the power doesn't stop at the wrong time. A device containing 20 000mAh capacity lithium polymer cells will load two devices at the same time and will also have enough power to load the tablet. It is possible to download a spare power supply from either microUSB or USB-C charging connector. Energizer PowerSafe Management ensures safe operation and charging, protecting battery and charger from overcharge and short circuit.Technical information: Capacity: 20.000 mAh / 74Wh (maximum)Accumulator type: Litium polymerPowerbank charging: microUSB (5V/2A) and USB-C: 5V/2ALate charging with powerbank: 2kpl USB-A (5V, max. 2A)Size: 141 x 69 x 28 mmWeight: 415g high-quality emergency power supplies.