This is a genuine Samsung battery and is a high drain type with 2C ability. At 1C, this battery will provide a current of 2750mA for one hour. At 2C the battery will be providing twice the 1C current at about 5500mA and will last for half an hour. The INR 18650-29E is capable of providing up to 3C (8250mA) for very short periods limited to a few seconds. It is important to note that the Li-ion based batteries are prone to catch fire or explode under high stress conditions. It is a good idea to learn as much as possible about how to treat these high powered batteries and avoid dangerous scenarios.
NB: NOT to be used with E-cigarettes due to potential health risks!