Fremo PC-6000E-SL Elf Ultra-Slim Portable External Battery Backup Charger Power Bank 6000 Mah - Retail Packaging - silver Capacity of 6000mAh, charge all iPhones 3 times, a Galaxy twice, or an iPad Air 50%. 300% extra battery life for iPhones, 60% extra battery life for iPad Mini/iPad Mini 2, 50% extra battery life for iPad Air. Li-polymer battery cell to guarantee 500+ high quality safe charging cycles. 4 built-in circuit protection, over charge and discharge control, intelligent voltage monitoring. Ultra-slim stylish design, 30% thinner than other 6000mAh power bank, easily fits into your pocket or bag. Aluminum shell guarantees comfortable feeling and strong corrosion resistance.