21700 vs 18650 Battery – What’s the Same, What’s Different
What is the difference between a 21700 vs 18650 Battery? Short Answer: A “standard” 21700 is big, 47% bigger by volume than an 18650. It is about 50% heavier than a “standard” 18650. Because it is bigger it can store roughly 30% to 50% more power measured in mAh or amp hours. Both are rechargeable…