I'm a student trying to learn about Electric Vehicles. I need to know what an Shunt is, in plain English so I can understand!!!!! ((Not a Shunt Motor))

So I want to have a simple battery balancer to balance my lead acid batteries for my ev converted motorcycle. There are 4 12v batteries to balance and my charger is a simple 48v not-even-sure-how-many amp cheap chinese one. I was wondering if it would be possible to use this circuit as a...

Hello! This is my first project dealing with any sort of electric motors. I have been teaching myself as I go but I ran into a road block I want to use a CURTIS SepEX TRACTION CONTROLLER DC MOTOR CONTROL 24- 36 Volts with a 4 HP 24 Volt DC Reversible Electric Motor The problem (I am told)...