New * Alternate Power Supply - Serves as a backup power for outdoor, camping, reading, emergency lightning, field work, perfect for phones, laptops, TVs and even mini fridges. ChargerCenter features triple output modes: a 12V car socket; an 110V AC outlet (for devices up to 100W) and 4 fast-charging USB ports with another Quick Charge output. * Huge Capacity - 73000mAh/3.7V(25000mAh/10.8V) ChargerCenter is powerful to offer 23 charges to an iPhone 7, or 6 charges to an iPad Pro 9.7", or 15 charges to Galaxy S8; this charger can also provides 5 charges for New Version Macbook with your own USB to Type-C cable. * Safety Guaranteed - Battery Mangement System (BMS) to improve battery utilization, prevent over-current, over-voltage and over-temperature, advanced Texas Instruments (TI) chips ensures complete protection for you and your devices. * Slim Body - 39.5 x 19 x 18cm，4.43 Kg. This product structure is compact, easy to carry, can use everywhere * What You Get: Poweradd PowerCenter II*1, AC Charger * 1, Car Charger * 1, Car Cigarette Lighter Adapter * 1, User Guide*1;  Product Specification * Battery capacity : 270 Wh / 73000 mAh Full charge time : DC 15 V / 4.5 A (input), about 6 hours Output : 4 * USB 5 V - 2.1 A (Max); 2 * DC 9 - 12.6 V / 15 A (Max); 1 * AC 300 W (Max) Product size : 288 x 130 x 130 mm Weight : about 3.3 kg * Manufacturer · 24 after-sales service This product has a super long-term after-sales service of 24 months from purchase. Poweradd offers professional technical support and efficient service. * If you have any problems with the product, just tell us. We will correspond as quickly as possible.