STOP Buying the Wrong Solar Controller — The $30 Mistake That DESTROYS Your Entire System

Two years ago I fried a $300 lithium battery in eleven days. Brand new out of the box. The battery was fine. The panels were fine. The wiring was fine. The $30 charge controller I bought to save money destroyed everything connected to it. In this video I break down the three controller mistakes that kill your equipment — wrong type, wrong size, and wrong battery profile — and exactly how to pick the right one so you never burn money like I did.