Are 21700 and 18650 Batteries Interchangeable?
In the world of lithium-ion batteries, 21700 and 18650 models often come up in conversation. Both are cylindrical rechargeable batteries that power various devices. But with their differences in size and design, a common question arises – can you use them interchangeably? As a professional lithium battery packs manufacturer, I set out to uncover the […]