Experience the latest, most advanced Lithium-ion technology available today. This battery features a large capacity of 3500 mAh, allowing for much more talk/standby time. Fits the Samsung Galaxy Note 3 perfectly and works with your existing battery door cover. An excellent replacement for the Samsung OEM EB-B800BUBE battery.Mega Lithium-ion Battery. Designed for Samsung Galaxy Note 3. 3500 mAh capacity vs. OEM Samsung 3200 mAh capacity. Stylish finish. Delivers reliable, long-lasting power.