Charging Test: Yichuan New Energy INR21700-50PL All-Tab Cell Supports 15A High-Current Fast Charging
2026-08-21 · Compiled by Best IT Parts from public industry reporting
This review puts the Yichuan New Energy INR21700-50PL all-tab (full-tab) 21700 lithium cell through a charging test. All-tab electrode construction lowers internal resistance and improves heat dissipation, enabling high-rate charging — the cell reaches 50% capacity in about 10 minutes under fast charging. The article measures charging curves, temperature rise, and stability under 15A high-current charging, comparing the cell's rate capability against conventional tabbed designs and discussing its suitability for fast-charging portable power applications. For power bank manufacturers, battery pack assemblers, and B2B buyers sourcing high-rate cylindrical cells, the test provides practical data on charge acceptance, thermal performance, and cycle behavior — a useful reference for evaluating cell platforms for new-standard power banks and high-drain portable devices.
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Technical details are reproduced as reported. Verify specifications against the original source before design or procurement decisions.