Coming from a credible, reliable brand, this battery is 18650 in size and has a nominal capacity of 3500mAh. The IMR 18650 3500mAh CDC Battery features a nominal voltage of 3.7V, maximum voltage of 4.2V and discharge current of 10A maximum continuous. This flat top styled battery is not protected and measures at 18.30mm by 65.36mm. Weighing 47.1g, the IMR 18650 3500mAh CDC Battery by MXJO is the perfect battery to power all your favorite devices. So make sure to pick up one today!