Enough to drop a grown man to the ground from just little batteries how?
In: Engineering
AA batteries have a nominal voltage of 1.5V. Capacities vary, but a typical new AA might be rated for 2,000 mAh (milliamp hours). The total energy in the battery is 1.5V * 2000 mAh = 10,800 joules.
As a point of reference, that’s enough energy to lift 10,000 apples up by 1 meter. (source: https://en.m.wikipedia.org/wiki/Joule) That’s plenty of energy to do quite a lot of things!
Power is energy per second. The taser may be using less power than you might imagine. It sends an electric signal for around 2 milliseconds out of every second (0.2%). The power during those 2 milliseconds is fairly high, but it’s so brief that it doesn’t use as much energy as it might seem. Some clever electronics draws the energy from the battery relatively slowly, and releases it in those spikes.
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