280Ah Capacity LiFePO4 Battery with 8000 Cycles and 1C Discharge for Energy Storage
OID 280Ah LiFePO4 Battery – 3.2V Deep Cycle Lithium Iron Phosphate Cell
Engineered by Shenzhen Jianheng Technology Co Ltd (Jianheng), the OID71173204F280AH is a high-capacity prismatic LiFePO4 cell delivering 280Ah nominal capacity and 3.2V nominal voltage. Designed for demanding energy storage, EV, and industrial applications, it supports 1C maximum continuous charge and discharge, operates from -30°C to 60°C, and provides over 8000 cycles at 80% depth of discharge. The cell features a robust aluminum case with positive polarity, built-in safety against overcharge, over-discharge, and thermal runaway when paired with a BMS.
- Ultra-long cycle life: 8000 cycles @ 196Ah (80% SOH) under 25±2°C, 0.5C/0.5P with preload.
- High power density: 1C continuous charge/discharge (280A) at 25°C, 0.5P standard power (448W).
- Wide temperature tolerance: Charge 0~60°C, discharge -30~60°C; low-temperature discharge down to -30°C (2.00V cut-off).
- Excellent storage retention: ≤2% monthly self-discharge at 40% SOC, 25°C.
- Safe & reliable: LFP chemistry, insulation resistance ≥1GΩ, withstands 1500V insulation current test.
- Preload recommended: 500N-6000N initial preload for safety and cycle life; swelling force up to 30000N at 80% SOH.
| Parameter | Value |
|---|---|
| Nominal Capacity | 280Ah (0.5C, 25±2°C) |
| Nominal Voltage | 3.2V |
| Standard Charge/Discharge Current | 0.5C (140A) / 0.5P (448W) |
| Max Continuous Charge/Discharge Current | 1.0C (280A) at 25°C |
| Charge Cut-off Voltage | 3.65V (absolute max) |
| Discharge Cut-off Voltage | 2.50V (>0°C) / 2.00V (-20~0°C) |
| Internal Impedance (1kHz AC) | ≤0.25mΩ (fresh state) |
| Cycle Life | 8000 cycles @ 196Ah (70% SOH, 25°C, 0.5C/0.5C) |
| Operating Temperature (Charge) | 0°C ~ 60°C |
| Operating Temperature (Discharge) | -30°C ~ 60°C |
| Storage Temperature (6 months) | -20°C ~ 35°C (40% SOC recommended) |
| Weight | 5.56 ± 0.3 kg |
| Dimensions (T×W×H) | 71.8±0.5 × 174.2±0.8 × 207.1±0.8 mm (under 300±50Kgf preload) |
| Insulation Resistance | ≥1GΩ @ 500V |
| Case Material | Aluminum (positive polarity), PPS plastic terminal |
- Electric vehicles (EV, HEV, commercial EVs)
- Solar and wind energy storage systems
- UPS and backup power
- Industrial AGVs and robots
- Marine and RV house banks
- Telecom base stations
To ensure safe operation, the cell must be used with a Battery Management System (BMS) that provides: overvoltage protection (3.65V cut-off), undervoltage protection (2.50V / 2.00V), overcurrent, short circuit, overtemperature, and charge time-out (8 hours). Low-temperature charging below 10°C should avoid constant voltage mode; set cut-off ≤3.55V.
For storage exceeding 7 days, maintain SOC ≥5%. For >30 days, cycle every 3 months and store at 25-40% SOC in -20~35°C environment. Never store below 2.00V to prevent permanent damage.
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