For all Mobil Cellphone and Ipad Premium Samsung Battery Cell- Romoss 7800mAh with Dual USB Portable External Battery Backup Charger Power Bank Charger Can charge both cell phones and iPad. Charge itself quickly, just half of that for ordinary products. Grade A Samsung Cell Used to assure you a highest quality and reliability. Unique and luxury craftsmanship, Intelligent multi-level protection ensures safety and reliability. 1 year replacement warranty, 30-day refund guarantee after the purchase.