In 2003, Taser pushed the charge higher with the X26, in part by increasing the duration of each pulse. Early specifications said the X26 delivered 100 microcoulombs per pulse.

Part 5: The X26, Taser’s most powerful stun gun, was removed from the sales lineup in 2014. Behind the phase-out, a truth: The popular weapon posed a higher cardiac risk than other models.

Taser stopped sales of the X26 in the United States and Canada on December 31, 2014. It has since reported sales of more than 8,000 X26 devices, but hasn’t disclosed the identities or locations ...