Sanford 18650 Lithium-Ion Battery Specifications
1. General Specifications
- Battery Type: Rechargeable Lithium-Ion
- Model Number: Sanford 18650 (Exact model TBD)
- Dimensions:
- Diameter: 18 mm
- Height: 65 mm
- Weight: Approx. 45 g
2. Electrical Specifications
- Nominal Voltage: 3.7 V
- Capacity Options:
- Standard Models: 2000 mAh / 2200 mAh / 2600 mAh / 3000 mAh
- Discharge Voltage Range: 2.5 V – 4.2 V
- Maximum Charge Voltage: 4.2 V ± 0.05 V
- Nominal Energy: Varies (e.g., 9.62 Wh for 2600 mAh capacity)
- Internal Resistance: ≤ 40 mΩ (typical, at room temperature)
3. Charge Characteristics
- Standard Charge Current: 0.5 C (e.g., 1.3 A for 2600 mAh battery)
- Maximum Charge Current: 1 C (e.g., 2.6 A for 2600 mAh battery)
- Charging Time (Standard): 3–4 hours
- Charging Method: CC/CV (Constant Current/Constant Voltage)
4. Discharge Characteristics
- Standard Discharge Current: 0.5 C (e.g., 1.3 A for 2600 mAh battery)
- Maximum Continuous Discharge Current: 10 A – 20 A (model-specific)
- Peak Discharge Current: 25 A (short bursts)
- Cutoff Voltage: 2.5 V
- Operating Temperature (Discharge): -20°C to 60°C
5. Cycle Life
- Cycle Life (80% Capacity Retention): 300–500 cycles (depending on usage conditions)
6. Environmental and Storage
- Storage Temperature Range:
- Short-Term (<3 months): -20°C to 50°C
- Long-Term (>3 months): -20°C to 25°C
- Recommended Storage Voltage: 3.7–3.9 V (40–60% charge)
- Humidity: 5% to 90% RH
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- Design Compliance: UN38.3, IEC 62133
7. Applications
- Flashlights
- Power Banks
- RC Toys
- Electric Vehicles (when used in packs)
- Portable Electronics
8. Precautions and Warnings
- Avoid overcharging or deep discharging.
- Do not short-circuit or reverse polarity.
- Store in a cool, dry place away from flammable materials.
- Only use chargers specifically designed for lithium-ion cells.
