Key misconceptions include:'Grade A Guarantees Perfection': Even top-tier cells require proper BMS, torque, and thermal management. Always inspect and test upon arrival.'100Ah Label = 100Ah in All Conditions': Capacity varies with discharge rate and temperature. Bench-test cells under real-world conditions.'Drop-in Replacement for Lead-Acid': LiFePO4 needs adjusted charge profiles and protections. Upgrade chargers if necessary.'Parallel Strings...