The Ronin R-86 Is A Must-Have Power Bank For Charging Your Devices! I. If You're Looking For A Power Bank That Will Last All Day And A Week, Look No Further Than Ronin's R-86 Powerbank. This Ultra-High Capacity 18w Quick Charge Power Bank Provides 10000 MAh Of Juice For Powering Your Devices, With Fast Charging It Even Has A Digital LED Indicator To Clearly Show Its Battery Backup And Also Comes With A 1-Year Official Ronin Warranty.