EVE
High Power Cells
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| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Manufacturer | EVE Power Co., Ltd. | Model | C33P-V4.1 |
| Chemistry | Lithium iron phosphate (LiFePO4 / LFP), identified in the specification scope | Cell Format | Rechargeable cylindrical lithium-ion cell |
| Minimum Capacity | 14Ah; 0.2C, 2.5–3.65V, 25 ± 2°C | Minimum Energy | 44.8Wh; 0.2C, 2.5–3.65V, 25 ± 2°C |
| Operating Voltage, T > 0°C | 2.5–3.65V | Operating Voltage, T ≤ 0°C | 1.8–3.65V |
| Standard Charge Current | 0.5C at 25°C | Standard Discharge Current | 1C at 25°C |
| Maximum Continuous Charge Current | 3C at 25°C | Maximum Continuous Discharge Current | 5C at 25°C |
| Initial AC Resistance | ≤1.8mΩ; 30% SOC, AC, 1kHz | Initial DC Resistance | ≤6.5mΩ; 30% SOC, 2C, 30 seconds, 25°C |
| Cell Weight | 268 ± 6g, including insulation film | Shipment SOC | 30% |
| Monthly Self-Discharge | ≤3.0%; new cell in shipment state, evaluated after 3 months of storage at 25°C | Specification Reference | PBRI-C33P-V4.1-D06-03, Version A; B-sample shipment scope |
The EVE C33P-V4.1 is a rechargeable cylindrical LFP cell with a specified minimum capacity of 14Ah and minimum energy of 44.8Wh under defined test conditions. The available manufacturer excerpt lists maximum continuous discharge at 5C and maximum continuous charge at 3C, both at 25°C. MisenBattery supplies EVE cells and supports custom battery pack integration. These specifications cover B-sample shipments and require confirmation for production orders.
EVE specifies a minimum capacity of 14Ah and minimum energy of 44.8Wh at 0.2C over 2.5–3.65V and 25 ± 2°C. These values provide a documented basis for comparing cells and planning pack capacity. Actual usable pack energy depends on discharge current, temperature, system voltage limits and electrical losses.
The published maximum continuous discharge current is 5C at 25°C, while the standard discharge current is 1C. This distinction helps engineers evaluate both routine operating loads and higher continuous demand. Pack-level operation must account for heat dissipation, interconnect capability, protection settings and the manufacturer’s complete operating limits.
Standard charge current is specified at 0.5C, with a maximum continuous charge current of 3C at 25°C. These ratings support charger and BMS selection when used with the complete manufacturer charging protocol. The maximum current does not establish a guaranteed full-charge time and should not be applied at other temperatures without confirmation.
Initial AC resistance is limited to 1.8mΩ at 30% SOC and 1kHz. Initial DC resistance is limited to 6.5mΩ at 30% SOC using a 2C, 30-second test at 25°C. Keeping these measurement conditions separate supports meaningful incoming inspection and avoids comparing resistance values obtained through different test methods.
The specification lists a shipment state of charge of 30% and monthly self-discharge of no more than 3.0%, evaluated on new cells in shipment state after three months of storage at 25°C. These conditions provide a reference for inventory planning. Storage procedures and inspection intervals should follow the complete manufacturer guidance.
The cylindrical cell has a specified weight of 268 ± 6g, including insulation film. This gives pack designers a documented starting point for estimating cell mass within an assembly. Final mechanical design requires the complete dimension drawing, terminal details, insulation requirements and approved connection method for the production cell.
Custom battery pack applications: MisenBattery supplies EVE C33P-V4.1 cells and supports custom battery pack integration for projects such as industrial equipment, light electric mobility and energy storage, subject to engineering validation. Pack design should include a compatible BMS, fuses, voltage and temperature sensing, insulation, suitable cell spacing, mechanical support and thermal management, with manufacturer-approved welded interconnects where applicable. Confirm the availability and scope of applicable CE, UN38.3, RoHS and UL documentation for the exact cell, pack and shipment; certification is not established by the supplied excerpt.