Cjs02-qc18w-v1.3

: The specific hardware revision. Manufacturers update these versions to fix bugs, improve heat dissipation, or update the "smart protect IC" that prevents overcharging and short circuits. 📖 The "Story" of the Module

On paper, the specs might look familiar, but the "deep" change lies in the . Cjs02-qc18w-v1.3

: The board typically integrates multiple protection layers, including: : The specific hardware revision