VA2531 (10000 mAh) black, QC/PD portable batteryQC / PD portable rechargeable battery - supports fast chargingProduct Features:• 10000mAh capacity.• Compatible with all popular models of smartphones, tablets and other mobile devices.• To check the battery status, press the button. 4 LED indicators will show the level of charge.• Smartphone charging - up to 3 times. Tablet charging - up to 1 time.RIVACASE VA2531 supports Power Delivery 3.0 (18W) and Quick Charge 3.0.RIVACASE VA2531 supports Samsung Adaptive Fast Charge and Huawei FCP.Charge-through functionConnect the portable battery to the power source and your mobile device to the portable battery. Mobile device is charged first. When fully charged, the portable battery will start recharging.