21700 vs 18650 Battery - What's the Same, What's Different

What is the difference between a 21700 vs 18650 Battery? A “standard” 21700 is big, 47% bigger by volume than an 18650. It is about 50% heavier than a “standard” 18650.

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21700 Battery Vs 18650 Battery

21700 vs 18650 Battery - What's the Same, What's Different

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Your guide to buying 18650 & 21700 batteries.

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21700 vs 18650 Battery, Comprehensive Comparison