Datasheet — Panasonic Ncr21700t

Before diving into complex charts, here are the headline specifications as listed in the Panasonic NCR21700T technical datasheet:

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Angle grinders and drills that require sudden bursts of power.

The datasheet provides specific curves mapping voltage behavior against time and temperature. Managing these parameters maximizes cell lifespan. Charging Profile panasonic ncr21700t datasheet

. This durability is crucial for outdoor applications like electric vehicles and e-bikes. D. Long Cycle Life

The technical datasheet outlines the foundational boundaries of the NCR21700T. Understanding these absolute ratings ensures optimal performance and prevents premature cell degradation. Physical Dimensions 21700 (Cylindrical) Diameter: 21.1 mm (Maximum) Length: 70.4 mm (Maximum) Weight: Approximately 68.0 grams Electrical Capacity and Voltage Nominal Capacity: 4800 mAh (Typical) Minimum Capacity: 4700 mAh Nominal Voltage: 3.6V – 3.7V Charging Voltage: 4.20V ± 0.05V Discharge Cut-off Voltage: 2.5V Current and Discharge Ratings Standard Charge Current: 1.5A to 2.4A

Because the NCR21700T prioritizes capacity (5000mAh) over high discharge rates, it is best suited for devices requiring long-lasting energy. Before diving into complex charts, here are the

) provides one of the highest specific energy profiles available in mass production. The dominance of nickel drives up the energy density, while cobalt stabilizes the layered atomic structure during cycling. Aluminum acts as a stabilizing modifier, mitigating thermal runaway risks and widening the safe operational window. Anode Technology

When used within standard limits, the NCR21700T retains roughly 70% to 80% of its original capacity after 500 complete charge-discharge cycles. Keeping the cell cool and avoiding the absolute voltage extremes (e.g., charging to 4.1V and discharging to 3.0V) can double this lifespan. Common Applications

The NCR21700T exhibits a highly linear and predictable discharge curve. Managing these parameters maximizes cell lifespan

By increasing the volume by about 50%, Panasonic managed to nearly double the energy capacity of standard 18650s while only slightly increasing the footprint. Thermal Management:

You can find official product listings and additional business-grade lithium solutions on the Panasonic Energy Business Portal . NCR21700 data sheet

When designing battery packs using the NCR21700T, engineers must integrate robust protection mechanisms:

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