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LiFePo4 32650 Rechargeable Battery 3.2V 4000mAh with Screw (USED LIKE NEW)

Used-like-new 32650 LiFePO4 Rechargeable Battery cell with 3.2V nominal voltage, bolt/stud terminal, and tested capacity of 3700–4700mAh.

95.00 ج.م

متوفرالكود 3496300158546

32650 Battery Bracket 3 Cell

32650 Battery Bracket 3 Cell for securely organizing, spacing, and supporting three 32650 cylindrical cells in custom battery pack assemblies.

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32650 Battery Bracket 2 Cell for securely organizing and spacing two 32650 cylindrical cells during custom battery pack assembly and DIY projects.

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LiFePo4 32650 Rechargeable Battery 3.2V 4000mAh with Screw (USED LIKE NEW)

The LiFePo4 32650 Rechargeable Battery 3.2V 4000mAh with Screw (USED LIKE NEW) is a cylindrical Lithium Iron Phosphate (LiFePO4/LFP) rechargeable cell designed for battery packs, energy storage systems, backup power, lighting, and other applications requiring a 3.2V rechargeable cell. The 32650 industrial form factor measures approximately 32mm in diameter and 65mm in length and is fitted with a bolt/stud terminal for direct bolting into battery packs or suitable assembly connections.

Features:
  • Lithium Iron Phosphate (LiFePO4/LFP) rechargeable cell.
  • 32650 cylindrical form factor.
  • 3.2V nominal voltage.
  • 5000mAh marked/nameplate capacity.
  • 3700–4700mAh verified capacity range at low/medium discharge rates.
  • Highest confirmed tested capacity of 4712mAh.
  • Bolt/stud terminal for direct bolted connections.
  • Approximately 32mm diameter.
  • Approximately 70mm length.
Specifications:
Parameter Value and Details
Chemistry: Lithium Iron Phosphate — LiFePO4 (LFP)
Form Factor / Size: Cylindrical 32650 — approx. 32mm diameter × 65mm length
Terminal Type: Bolt / Stud Terminal
Marked (Nameplate) Capacity: 5000mAh (supplier’s marketing figure)
Verified Capacity — Low/Medium Discharge Rate (≤ 1C): 3700 – 4700mAh (varies by sample); highest confirmed reading: 4712mAh (2.5V cutoff, 14.7Wh, 1:34:15 runtime)
Verified Capacity — High Discharge Rate (~4.5–5C / 22–24A): ≈ 2300 – 2400mAh (natural reduction due to Peukert effect)
Nominal Voltage: 3.2V
Max Charge Voltage: 3.65V
Recommended Discharge Cutoff Voltage: 2.5V
Absolute Minimum Voltage (never exceed): 2.0V
Internal Resistance — AC ESR Meter: 7 – 20 mΩ (sample-to-sample variation observed)
Internal Resistance — Under Real DC Discharge Load: ≈ 31 mΩ (may include wiring/contact resistance)
Max Discharge Current Actually Tested Without Failure: 22.76 – 24A (≈ 4.5C) — cell ran stably until approaching cutoff voltage
Cathode (Positive Electrode): Lithium Iron Phosphate (LiFePO4), thermally stable olivine structure
Anode (Negative Electrode): Graphite
Separator: Porous, heat-resistant polymer membrane
Electrolyte: Lithium salt dissolved in an organic solvent
Outer Casing: Metal can (steel/aluminum), pressure-resistant, with safety vent for gas release
Test:

 

Applications:
  • Solar energy storage systems.
  • Small-scale energy storage.
  • Electric bicycle battery packs.
  • Electric scooter battery packs.
  • Low-to-medium power backup systems.
  • UPS battery systems.
  • High-power flashlights.
  • LED lighting equipment.
  • Battery pack construction.
  • Industrial applications requiring LiFePO4 chemistry.
  • DIY energy storage projects.
Package Include:
  • 1x LiFePo4 32650 Rechargeable Battery 3.2V 4000mAh with Screw (USED LIKE NEW)
  • 1x Screw
  • 1x nut
  • 1x nut washer
Documents:
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