Panasonic Ncr21700t Datasheet

The cell includes an integrated PTC (Positive Temperature Coefficient) resistor that increases resistance during temperature spikes to prevent short-circuits, alongside a built-in safety valve to relieve internal pressure. Charging and Storage Guidelines

Because industrial cells like the NCR21700T are manufactured as "bare cells" (often lacking built-in mechanical PTC or CID safety valves found in consumer-facing button-top batteries), the external pack casing must protect against punctures, crushing, and short-circuits.

Similar to the cells used in Tesla Model 3/Y packs (though Tesla uses proprietary variations). High-Power Tools:

Cordless drills, saws, and grinders require the cell's sustained 15A capability.

Where both high capacity (runtime) and high current (motor torque) are required. panasonic ncr21700t datasheet

The cell must be charged within the temperature range of . Charging outside these limits can cause irreversible damage, including lithium plating on the anode, which reduces capacity and poses a safety risk.

The Panasonic NCR21700T is a lithium-ion battery cell with the following characteristics:

Below are the standard technical specifications for the Panasonic NCR21700T: 4800 mAh (Typical) / 4700 mAh (Minimum) Nominal Voltage: 3.6V – 3.7V Charging Voltage: 4.20V ± 0.05V Discharge Cut-off Voltage: 2.5V

Among their lineup, the stands out as a high-capacity cell designed for applications requiring long runtimes and moderate power delivery. This article provides a deep dive into the datasheet specifications, interpreting what the numbers mean for engineers and battery pack designers. The cell includes an integrated PTC (Positive Temperature

Unlike some 21700 cells, the NCR21700T has . You must add external overcharge, overdischarge, and short-circuit protection when designing a battery pack.

The voltage is held at 4.2V while the current tapers down. Charging stops when the current drops below the cut-off threshold (typically around 94 mA). Discharge Performance

Deep Dive: Panasonic NCR21700T Li-ion Battery Datasheet Explained

The Panasonic NCR21700T is an . It does not feature a built-in electronic protection circuit board (PCB/PCM). Therefore, users must exercise strict caution: Charging outside these limits can cause irreversible damage,

The Panasonic NCR21700T occupies an important niche: high energy per cell in the 21700 mechanical form factor suited to designs where runtime/range and energy density matter more than extreme continuous discharge. Successful use depends on treating the cell as an energy‑centric building block: respect charge/discharge limits, implement robust BMS and thermal management, derate where longevity or safety is critical, and validate real‑world performance through testing and modeling. For high‑power use cases, consider power‑optimized 21700 variants or more aggressive parallelization combined with careful thermal design.

I can provide specific or thermal management advice based on your needs. Share public link

Limiting the charge voltage to 4.1V and avoiding deep discharges (above 3.0V) can double the total cycle life. Critical Safety and Temperature Thresholds