YFH has officially rolled out its latest YFH-INR21700-50Q tabless cylindrical lithium-ion cell, engineered specifically for high-draw environments like power tools and energy storage systems.
Built to the standard 21700 form factor, it packs a 5000mAh nominal capacity (4900mAh minimum), 18.5Wh of energy, and a 3.7V nominal rating. Featuring an innovative tabless, low-impedance layout paired with impressive energy density, this cell delivers top-tier sustained discharge rates and thermal management, expanding YFH's robust high-power cylindrical lineup.
The YFH-50Q shines in impedance and output, boasting an AC internal resistance of ≤4mΩ, a gravimetric density of 272Wh/kg, and a volumetric density of 744Wh/L. It supports 5A standard charging, up to 15A fast charging, and a continuous discharge of 50A—stretching to a blistering 90A continuous output with an 80℃ thermal cutoff, plus a 2-second 140A pulse capability.
Cycle longevity is equally solid, retaining over 80% capacity after 500 cycles at 5A charge and 50A discharge. Dressed in a sleek blue heat-shrink sleeve, it features a flat three-vent alloy positive terminal and an anodized negative base.
Dimensions measure roughly 70.5mm × 20.9mm at a weight of 69.8g.
The debut of the YFH-INR21700-50Q delivers a compelling tabless choice for heavy-duty power and storage setups. By offering a tiered matrix ranging from 40A to 50A continuous outputs and 140A peak pulses (including the 40Q, 45Q, 50Q, 60Q, and 65Q series), YFH covers diverse performance demands across end applications. As tabless technology gains momentum in power tools, light EVs, and smart hardware, high-capacity, ultra-low-resistance cells like this are poised for substantial market growth.
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