SK P489 is a rechargeable NCM lithium-ion pouch cell listed with 3.7 V nominal voltage, 48.9 Ah capacity and 178.0 Wh label energy in the supplied parameters. Its continuous discharge rating is listed as 5C, or 244.5 A, while the separate 8C instantaneous value has no supplied duration. MisenBattery supplies cells and supports custom pack evaluation with confirmed operating conditions, suitable protection and validated thermal and mechanical integration.
01
3.7 V Nominal Voltage and 48.9 Ah Listed Capacity
The supplied parameters identify SK P489 with 3.7 V nominal voltage and 48.9 Ah capacity. The capacity grade and test conditions are not stated, so the value should remain described as listed capacity. Preliminary pack sizing should be followed by capacity testing under agreed voltage limits, temperature and discharge conditions.
02
178.0 Wh Reported Label Energy
The supplied label energy is 178.0 Wh. Multiplying the listed 3.7 V by 48.9 Ah gives a separate calculated value of 180.93 Wh, so the rating basis requires confirmation. Retaining the label figure supports accurate product identification, while usable pack energy should be evaluated under the intended load profile and operating conditions.
03
5C / 244.5 A Listed Continuous Discharge
Continuous discharge is listed as 5C, equivalent to 244.5 A on the 48.9 Ah capacity basis. This rating supports preliminary evaluation of demanding loads, subject to confirmation of temperature, SOC, cooling and cut-off conditions. Pack operating limits should also account for interconnect capacity, protection response and thermal validation of the complete assembly.
04
8C Instantaneous Discharge with Timing to Confirm
The supplied instantaneous discharge value is 8C, or 391.2 A using the listed capacity. No duration, recovery interval or repetition condition is provided. This entry should remain separate from the continuous rating and should not be presented as a defined-duration pulse capability until the applicable test protocol and thermal conditions are confirmed.
05
Listed Pouch Dimensions and Approximate Weight
The supplied dimensions are 11 × 98 × 320 mm in thickness, width and length, with an approximate weight of 1.1 kg. These values support preliminary enclosure layout and cell-mass calculations. Confirm tab boundaries, dimensional tolerances and swelling allowance before tooling, with suitable cell support, insulation and a validated tab-connection process.
06
Approx. 0.6 mΩ Listed Internal Resistance
Internal resistance is listed as approximately 0.6 mΩ without a supplied measurement method, SOC, temperature or test duration. Retain these limitations when comparing cells or setting inspection criteria. Voltage drop and heat generation should be evaluated with appropriate measurements across the intended operating conditions, rather than inferred from this resistance value alone.
Custom battery pack applications: MisenBattery supplies SK P489 cells and supports custom pack evaluation for mobility, industrial equipment and energy storage projects, subject to application validation. Integration should include a compatible BMS, fuse protection, voltage and temperature sensing, validated tab-welding and interconnect processes, insulation, cell spacing, swelling allowance and thermal and mechanical design. Confirm applicable CE, UN38.3, RoHS and UL documentation for the specific cell, pack and shipment; certification status is not established by the supplied parameter table.
