21700 Plug-in Battery Box: A Versatile Choice for DIY Enthusiasts
Introduction: The 21700 plug-in battery box offers a range of options, including single-cell, dual-cell, triple-cell, and quad-cell configurations. Compared to the popular 18650 batteries, the 21700 battery box boasts a higher power density. With a minimum capacity of 4500mAh for a single 21700 cell, it surpasses the typical 2500mAh capacity of an 18650 battery. In […]