During a recent teardown, Dianchi spotted a new lithium-ion battery cell from LIWINON that meets the latest national safety requirements. Known as the C16280B, this cell packs 10,000mAh (37.00Wh) at 3.7V and is fully 3C certified.
Why does this matter? Because for fast-charging power banks, the battery cell is the heart of the device—it’s the deciding factor for how much power you get, how cool the unit runs, and how long it lasts. The 10,000mAh size is a sweet spot for many, delivering solid capacity without sacrificing portability. Liiwii Energy is a subsidiary of Sunwoda, a major player in the lithium battery space. Known for its high-tech polymer cells, the company supplies batteries for everything from your smartphone to your laptop, aiming to lead the global lithium battery market with its premium, cutting-edge technology.
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