When the discharge rate is faster, as it probably would be in a coil gun, the available energy is not as great but even under intermittent heavy pulsed loads, the battery will provide around 5,000 Joules.

Thus, we see this relatively small battery has several times the energy of even a high powered bullet.

If we set our goal for a more modest velocity of 600 ft/sec (183 m/s) and a 3 gram projectile, the kinetic energy will be 50 joules. In the following analysis, we\'ll keep the 50 joule goal in mind.