Avoid the pitfalls in 1 minute! Beginners building a pack — 3 steps solve the core problems: set the series count ➜ set the parallel count ➜ lock in the BMS. With the AWithZ H2-2026 handheld, even a newbie can weld a finished-grade pack and get safely to the end🚗 #AWithZSpotWelder #BatteryMaking #DIY #BeginnerGuide #PitfallGuide