3 in 1 Solution: Fastest charger, fastest portable mobile power bank and a high capacity rechargeable battery Ultra Compact: Our 2nd generation C2 designed for pocket taken (3.65 ? 1.0 ? 0.9 in, 3 oz). High-speed Charging/Discharging Technology: Max 2.4 amp for input of DC 5V Max 3 amp output of DC 5V. Advanced short circuit and over discharging protection mechanism to ensure users safety High Capacity: One of the most powerful ‘mini’ chargers on the market with one ThruNite 3400mAh 18650 cell inside What You Get: C2 Charger with 1* 18650 3400mAh battery, 1 * USB cable, 1 * mesh bag, 24-Month free replacement warranty.