Each requires you to get a Heart Item from specific Personas, which means you will also need to have those Personas. Here is everything you need to get all the available Ultimate weapons: All Persona 3 Reload Ultimate Weapons and Fusion Requirements Lucifer’s Blade – Main Character Abilities...
Motor KV does not directly affect torque, but it does impact the torque constant. The torque constant of a motor defines how much current is required to produce a certain amount of torque. KV doesn’t influence the actual torque generated; factors such as magnet strength, air-gap, and coil...
Take Researchers in the Power Sources R&D group at Sandia National Laboratories have been driving nails into batteries, heating them to extreme temperatures, overcharging them and putting them into some of the most adverse conditions possible to see how much abuse they can take before they blow up...