... 3)430mah lithium battery ITEM :silicone wireless bluetooth keyboard with leather case for ipad wireless bluetooth keyboard with leather case for ipadwireless bluetooth keyboard for ... uninterrupted working time: 90 hours 13, charging time: 4-4.5 hours 14, Li-ion battery Capacity: Minimum 430MAH ... 15, lithium battery life: 3 years 16, lithium battery Specifications: 4.5 * 24 * 47MM 17, key ...