Voltage Step Down Module
Why use a step-down box over a 3-Post Battery?
The design of the three-post battery consists of eight cells with one negative terminal, a positive 12V terminal on the 6th cell, and a positive 16V terminal on the 8th cell.
The problem with this method comes with charging the battery. Since the usage is never balanced (meaning the exact same drain on the 12V post as on the 16V post), charging can never be balanced. One side or the other is either going to be undercharged (and therefore less effective), or overcharged (damaging and reducing the life of the battery).
Therefore, after extensive research, it is our opinion that a step down module used with a true 16V battery is more effective in mixed voltage situations where sensitive 12V components are needed or used