The Rise of the 21700 Battery Pack,What You Really Need to Know
The 21700 battery pack isn''t just another fad—it''s quickly becoming the standard in high-demand applications. Whether
Shop 21700 batteries at Voltaplex. These high-performance 21700 battery cells provide efficient, long-lasting power, ideal for demanding devices and applications. Order individual 21700 li-ion cells or bulk 21700 batteries today to keep your devices powered and ready for anything.
If you've been around anything that runs on lithium batteries—whether it's drones, e-bikes, power tools, or even flashlights—you've probably noticed the buzz around 21700 battery packs. The name comes from the size: 21 mm in diameter and 70 mm in length.
Unprotected 21700 Batteries: Designed for battery packs or high-performance applications where external battery management systems (BMS) handle protection. 21700 batteries are becoming the industry standard for devices requiring longer runtime and more power. Some common applications include:
You don't really notice the size increase, but you definitely feel the performance upgrade. At its core, a single 21700 cell usually holds 4000–5000 mAh with a nominal voltage of 3.6–3.7 V. Fully charged, it hits 4.2 V, and cutoff usually happens around 3.0 V.
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