The World’s First 10,000mAh NCM Li-Ion Cell: JOINSUN INR26750-100D Ushers in a New Era of High-Capacity Cylindrical Batteries
Blog | Published by Alex on June 5, 2026
As lithium-ion battery technology continuously pushes its boundaries, the "impossible triangle" of capacity, power, and cycle life remains a core industry challenge. However, JOINSUN's INR26750-100D redefines the performance limits of the 26750 cylindrical cell with its staggering 10,000mAh (10Ah) capacity. As the world’s first NCM (Nickel-Cobalt-Manganese) lithium-ion cell to reach the 10Ah level, it represents not just a numerical milestone, but a definitive solution for a wide range of high-energy, long-endurance applications.
A Capacity Revolution: What Does 10Ah Change?
What does 10,000mAh truly mean? In the same physical volume, it delivers over 40% higher energy density than traditional 26750 cells (typically 5–7Ah). For portable power stations, high-performance power tools, light electric vehicles (such as e-scooters and drones), and even home energy storage systems, this translates into a dramatic leap in runtime. One cell now does the work of two, simplifying system design, reducing assembly costs, and lowering internal impedance.
Power and Endurance: The Art of Balance
What’s truly impressive is not just the capacity, but the cell’s robust performance in both continuous and pulse discharge scenarios.
(1) Max Continuous Discharge (Cyclic): 20A (2C)
A 2C continuous discharge capability means this 10Ah “energy reservoir” can stably deliver 20A of current. For applications requiring sustained high power—such as heavy-duty power tools or continuous robot motion—20A ensures uninterrupted output with controlled temperature rise, mitigating thermal runaway risks.
(2) Pulse Discharge (Non-Cyclic): 40A (4C)
This is the most striking feature of the INR26750-100D. It can withstand pulsed currents up to 40A for several to tens of seconds. This performance perfectly suits sudden high-power demands like startup, acceleration, or overload conditions—for example, the “max boost” mode of a high-power vacuum cleaner, the climbing phase of an e-bike, or a portable power station starting inductive loads (refrigerators, motors). A 40A burst proves that high capacity does not mean sluggishness.
Charging and Cycle Life: The Endurance Athlete
(1) Max Continuous Charge (Cyclic): 10A (1C)
A 10A charge current (1C) means a full 0–100% charge in approximately one hour. In fast-paced applications, this drastically reduces downtime and improves operational continuity.
(2) Cycle Life: 300–500 Cycles (80% DoD)
Under typical daily use conditions with an 80% depth of discharge (DoD), the INR26750-100D reliably delivers 300 to 500 cycles while maintaining over 80% of its original capacity. This is a practical and excellent specification—balancing several years of effective service life with cost control. For both consumer and professional devices, this cycle life fully covers standard product renewal cycles.
Key Application Scenarios
With its 10Ah ultra-high capacity, 40A burst pulse, 1C fast charge, and 500-cycle life, the JOINSUN INR26750-100D is set to impact the following fields:
(1) High-End Power Tools: Reduces battery swaps and handles the instantaneous high current demands of impact drills and circular saws.
(2) Portable Energy Storage Systems: A single 10Ah cell significantly reduces the number of parallel cells required in compact power stations.
(3) Light Electric Vehicles: For shared e-scooters and self-balancing scooters, delivering longer range and reliable start/acceleration performance.
(4) Household Cleaning Equipment: Premium cordless vacuum cleaners and wet-dry floor washers that benefit from both long runtime and turbo mode.
Summary
The JOINSUN INR26750-100D is not a one-dimensional product that sacrifices other attributes for capacity alone. With 2C continuous discharge, 4C pulse discharge, 1C fast charging, and a 500-cycle lifespan, it proves that “high capacity can also be powerful.” As the world’s first 10Ah-class 26750 NCM cell, it fills a long-standing gap between high energy density and high power density, opening a new door for downstream product designers. The trade-off between “running far” and “running hard” no longer exists.
This is not just a specification upgrade—it is a product definition revolution. The JOINSUN INR26750-100D is leading the 26750 cell into the 10 amp-hour era.
