Samsung 25R | 18650 2500mAh 20A Battery
🔋 Overview
The Samsung 25R is one of the most trusted and widely used 18650 lithium-ion cells on the market. With a 2500mAh capacity and a 20A continuous discharge rating, it delivers balanced performance for mid-power builds including e-bike packs, power tools, and high-drain devices.
This is a genuine OEM cell from Samsung SDI — safe, reliable, and perfect for pack builders looking for long-lasting performance with consistent output.
⚡ Key Features
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Capacity: 2500mAh
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Nominal Voltage: 3.6V
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Max Charge Voltage: 4.2V
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Discharge Cut-off: 2.5V
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Continuous Discharge Rating: 20A
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Chemistry: INR (LiNiMnCoO2)
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Form Factor: 18650 cylindrical
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Protection: None (unprotected, flat top)
✅ Applications
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E-bike and scooter battery packs
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Power tools
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High-performance flashlights
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DIY lithium battery projects
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Any build requiring safe, dependable 20A discharge
🧪 Spec Sheets & Compliance
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📦 What’s Included
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1x Samsung INR18650-25R 2500mAh Cell
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Authentic Samsung SDI manufacturing
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Ships in cell-safe packaging
Downloads
Samsung 25R Rpe Spec
⚠ Important Safety Warnings
Improper use of lithium-ion batteries can cause fire, explosion, or serious injury. These cells are intended only for use in battery packs with a BMS (Battery Management System) or Protection Circuit Board (PCB). Do not use as standalone cells or in e-cigarettes, vape devices, or unprotected applications.
Key Safety Guidelines:
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Never carry loose batteries in your pocket, purse, or bag — risk of short circuit and fire.
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Always store and transport in a protective case.
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Inspect before use: Do not use if damaged, leaking, bulging, or the wrapper is torn.
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Charge safely: Use a smart charger designed for lithium-ion cells. Never overcharge or leave unattended.
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Do not crush, puncture, modify, expose to liquid, solder directly, or short circuit.
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For thermal runaway (swelling, smoke, heat): move to a fire-safe surface and use Class D extinguisher or sand — never water.
Disclaimer:
Rechargeable Power Energy (RPE) is not responsible for misuse, improper handling, or unsafe pack assembly. Buyers and resellers accept full responsibility for safe use. Cells must be packaged individually — do not sell or ship loose.