loading
SK
Dongguan City, Guangdong
P318
Grade A
31.8Ah
3.7V
650g
6 × 95 × 320mm
1500 times (80% of initial capacity at 0.2C rate, IEC Standard)
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| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Brand | SK | Model | P318 |
| Cell Type | Rechargeable lithium-ion pouch cell | Cathode Chemistry | NCM (nickel cobalt manganese) |
| Nominal Voltage | 3.7V | Nominal Capacity | 31.8Ah |
| Calculated Nominal Energy | Approx. 117.66Wh (3.7V × 31.8Ah) | Internal Resistance | Listed value: 0.7mΩ; test method and conditions unspecified |
| Maximum Charging Voltage | 4.20V | Discharge Cut-off Voltage | 2.75V |
| Continuous Discharge Rate | 3C; operating conditions require confirmation | Calculated Continuous Current | 95.4A (3 × 31.8Ah) |
| Listed Pulse Discharge Rate | 8C; duration, SOC, temperature and duty cycle unspecified | Calculated Listed Pulse Current | 254.4A (8 × 31.8Ah); requires pulse-condition confirmation |
| Dimensions (T × W × L) | 6 × 95 × 320mm; tolerances and tab inclusion unspecified | Weight | 650g |
| Charging Temperature | 0°C to 45°C | Discharging Temperature | −20°C to 60°C |
The SK P318 is listed as a 3.7V 31.8Ah rechargeable NCM pouch cell with a slim 6mm profile and a 3C continuous discharge rating. Its calculated nominal energy is approximately 117.66Wh per cell. MisenBattery supplies SK cells and supports custom battery pack integration. The following features reflect the supplied product parameters; manufacturer documentation and application-specific validation are required before final pack design.
A nominal capacity of 31.8Ah at 3.7V corresponds to approximately 117.66Wh of calculated nominal energy per cell. These values provide a starting point for selecting series and parallel configurations. Usable pack energy depends on operating current, temperature, voltage limits, cell matching and system losses rather than nominal energy alone.
Listed dimensions of 6 × 95 × 320mm provide a slim, elongated format for evaluating space-constrained battery layouts. The stated cell weight is 650g. Final enclosure design should account for dimensional tolerances, tab clearance, insulation, mechanical support and manufacturer-defined swelling allowances, which are not included in the supplied parameter table.
The supplied continuous discharge rating of 3C converts to 95.4A using the stated 31.8Ah nominal capacity. This supports preliminary evaluation of applications with sustained current demand. Confirm the applicable temperature, voltage cutoff and thermal conditions before selecting pack current limits, interconnect dimensions, fuses and BMS protection settings.
The parameter table lists internal resistance at 0.7mΩ, providing a value to verify during technical qualification. The measurement method, SOC, temperature and tolerance are unspecified. Obtain these conditions before establishing incoming inspection criteria or comparing the cell with other models; this value alone does not establish voltage drop or thermal performance.
The supplied parameters specify a maximum charging voltage of 4.20V and a discharge cutoff of 2.75V per cell. These limits inform charger compatibility and BMS design. Charging current, termination criteria and the complete charging protocol still require confirmation; pack control must monitor individual cell voltages rather than relying solely on total pack voltage.
Listed operating ranges are 0°C to 45°C for charging and −20°C to 60°C for discharging. These separate ranges help define temperature monitoring and operating controls. They do not establish that maximum current is available throughout each range. Confirm temperature-dependent current limits and the required measurement location before validating the finished battery pack.
Custom battery pack applications: MisenBattery supplies SK P318 cells and supports custom pack integration for projects such as industrial equipment, electric mobility and energy storage, subject to engineering validation. Pack design should include a compatible BMS, fuses, voltage and temperature sensing, insulation, appropriate cell spacing, pouch support and thermal management. Use tab connections and welding processes approved for the specific cell construction. Confirm applicable CE, UN38.3, RoHS and UL documentation availability and scope for the exact cell, pack and shipment; the supplied parameters do not establish certification.
