Power your outdoor and household devices safely and efficiently with the 18500 3.2V 1500mAh LiFePO4 Rechargeable Battery (2-Pack). Unlike standard 3.7V lithium-ion batteries, this premium cylindrical cell features LiFePO4 (Lithium Iron Phosphate) chemistry, offering superior thermal stability, unmatched safety, and an ultra-long 2000+ recharge cycle lifespan.
With a generous 1500mAh capacity, it delivers consistent and reliable 3.2V power for solar garden lights, cordless hair clippers, trimmers, and various flashlights.
We offer this high-performance cell in two versatile terminal styles within this single listing:
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Flat Top (50mm Height): A bare flat cell designed for flat contact plates or custom spot-welding into battery packs.
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Flat Top with Solder Tabs (50mm Height): Features pre-welded nickel tabs on both ends, ready for direct soldering onto your device's motherboard.
Critical Voltage & Chemistry Warning
This is a 3.2V LiFePO4 battery. It is NOT a standard 3.7V lithium-ion battery. It is specifically engineered for devices that require a 3.2V power platform (such as many solar lighting systems and specific cordless clippers). DO NOT use this battery in devices designed for 3.7V 18500 cells. The lower voltage may trigger low-voltage protection or cause the device to operate weakly. Please check your original battery's voltage before ordering.
Key Features
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Advanced LiFePO4 Chemistry: Offers unrivaled safety, non-combustible materials, and a stunning 2000+ recharge cycle lifespan – lasting 4 times longer than standard lithium-ion batteries.
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High Capacity 1500mAh: Provides extended runtime for outdoor solar lights, grooming tools, and small electronics.
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Dual Terminal Options: Choose between the bare Flat Top (50mm) for flat contacts/spot welding, or the Flat Top with Solder Tabs (50mm) for direct PCB soldering.
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Stable 3.2V Output: Delivers consistent voltage for devices specifically designed for the 3.2V LiFePO4 platform.
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Convenient 2-Pack: Comes with two identical batteries, perfect for keeping a spare or powering devices that require a pair.
Technical Parameters
| Parameter | Specification |
|---|---|
| Model | 18500 (Cylindrical LiFePO4) |
| Chemistry | LiFePO4 (Lithium Iron Phosphate) |
| Capacity | 1500mAh |
| Nominal Voltage | 3.2V |
| Available Terminal Versions |
1. Flat Top (Height: 50mm) 2. Flat Top with Solder Tabs (Height: 50mm) |
| Diameter | 18mm |
| Rechargeable Cycles | 2000+ cycles |
| Safety Features | Highly stable, Non-combustible |
Applications
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Outdoor Solar Garden Lights & Pathway Lights
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Cordless Hair Clippers, Trimmers & Shavers
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LED Flashlights (Specifically designed for 3.2V input)
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Small Home Appliances & DIY Electronics
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Custom Battery Pack Building (Requires spot welding for the bare Flat Top)
FAQ
Q: What is the difference between the two versions listed?
A: The "Flat Top" version is a bare cell without any tabs, designed for flat contact plates or for spot-welding into battery packs. The "Flat Top with Solder Tabs" version comes with pre-welded nickel tabs on both ends, ready to be soldered directly onto a circuit board.
Q: Why is the voltage 3.2V instead of 3.7V?
A: 3.2V is the standard nominal voltage for LiFePO4 chemistry. This battery is designed for devices specifically built for the 3.2V platform. Using it in a device designed for 3.7V will cause the device to run weakly or trigger low-voltage protection.
Q: Is this battery compatible with my 3.7V 18500 device?
A: No. This is a 3.2V battery. If your original battery is 3.7V, this battery will not provide sufficient voltage. Please strictly check your device's voltage requirement before purchasing.
Q: Is this battery protected (with a built-in PCB)?
A: No, this is an unprotected LiFePO4 cell. It relies on your device's built-in protection circuit.
Q: How long does it take to fully charge this 1500mAh battery?
A: Using a dedicated 3.2V LiFePO4 charger at a 1A rate, it will take approximately 1.5 to 2 hours.
