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The Samsung INR18650-25R is a premium lithium-ion cell rated at 2500mAh, engineered for applications requiring sustained power output and extended cycle performance. This genuine Samsung component features optimized chemistry for thermal management and voltage stability across discharge cycles.
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Unleash the potential of your devices with the high-performance Samsung INR18650-30Q 3.6V 3000mAh Li-ion Battery. Known for its reliability and excellent capacity, this genuine Samsung cell provides long-lasting power for demanding applications. Perfect for power tools, electric vehicles, and high-drain electronics, the 30Q delivers a robust 3000mAh capacity to keep you going longer.
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The Samsung 50S 21700 Battery is a high-performance lithium-ion rechargeable power cell, offering exceptional capacity and a robust discharge rate. With an impressive 5000mAh capacity and a continuous discharge rate of 25A, this battery is an excellent choice for high-drain applications requiring long-lasting performance and reliable power output.
Key Features
✅ High Capacity: 5000mAh ensures extended runtime before requiring a recharge.
✅ High Discharge Rate: 25A continuous discharge, ideal for power-hungry applications.
✅ Lithium-Ion Chemistry: Offers high efficiency, stability, and minimal voltage drop.
✅ Rechargeable & Durable: Supports multiple charge cycles with minimal capacity loss.
✅ Larger 21700 Size: Provides higher capacity and better endurance than standard 18650 batteries.
Specifications
Specification
Details
Brand
Samsung
Model
50S
Battery Type
21700
Capacity
5000mAh
Nominal Voltage
3.6V
Full Charge Voltage
4.2V
Discharge Cutoff Voltage
2.5V
Continuous Discharge Rate (CDR)
25A
Rechargeable
Yes
Protected
No (Unprotected cell – use with proper safety measures)
Cycle Life
~300+ charge cycles
Diameter
21.4mm
Length
70.0mm
Weight
~70g
Applications
The Samsung 50S is widely used in high-drain electronic devices, including:
🔋 Electric Vehicles (EVs) & E-Bikes – Provides high power output and long-lasting charge cycles.
🔋 Battery Packs – Frequently used in custom-built high-performance energy storage systems.
🔋 Power Tools – Suitable for cordless drills, saws, and industrial-grade equipment.
🔋 RC Vehicles & Drones – Delivers stable and long-lasting energy output.
🔋 Flashlights & Tactical Gear – Ideal for high-performance LED torches and professional gear.
🔋 Energy Storage Systems (ESS) – Used in power banks, solar storage, and backup energy systems.
Safety Guidelines & Warnings
⚠️ IMPORTANT SAFETY NOTICE ⚠️Lithium-ion batteries require proper handling and knowledge to ensure safe usage. Failure to follow safety guidelines may result in fire, explosion, serious injury, or property damage.
General Safety Guidelines
✔ Only purchase and use if you fully understand lithium-ion battery safety.
✔ Always charge in or on a fire-resistant surface—never leave batteries charging unattended.
✔ Use only a compatible smart charger designed specifically for this type of battery.
✔ Store batteries in a protective case—never carry them loose in a pocket, bag, or purse.
✔ Keep away from metal objects (keys, coins, tools) to prevent short circuits.
✔ Use only within manufacturer-listed specifications and in protected battery packs.
✔ Resellers must provide these warnings to all customers.
🚫 Prohibited Uses & Handling
⛔ DO NOT use this battery in e-cigarettes, vaporizers, or similar devices.
⛔ DO NOT mix old and new, or used and unused batteries.
⛔ DO NOT short circuit, puncture, cut, crush, incinerate, or modify the battery.
⛔ DO NOT use if the battery wrapper is torn or damaged in any way.
⛔ DO NOT overcharge or over-discharge—this can lead to battery failure.
⛔ DO NOT expose the battery to liquids, extreme heat, or direct sunlight.
⛔ DO NOT solder directly—only use spot welding for battery pack assembly.
Samsung INR21700-50G — High-Capacity Lithium-ion CellPower your builds with confidence. The Samsung INR21700-50G is a premium 21700-format lithium-ion cell engineered for high-capacity applications — from DIY battery packs and e-bikes to power tools, solar storage systems, and EV conversions.Key Specifications
Model: INR21700-50G
Nominal Voltage: 3.6V
Capacity: 4900mAh (rated) / 5000mAh (typical)
Chemistry: Lithium Nickel Manganese Cobalt Oxide (NMC)
Form Factor: 21700 cylindrical cell
Certification: CCC certified
Why Choose the INR21700-50G?
✅ One of the highest energy densities in the 21700 format
✅ Stable discharge curve for consistent performance
✅ Suitable for series/parallel battery pack assembly
✅ Trusted Samsung quality with rigorous cell-level QC
✅ Ideal for custom lithium battery pack builders
Typical Applications
DIY lithium battery packs (e-bike, scooter, EV)
Solar energy storage systems
Power tools and industrial equipment
Portable power stations
RC vehicles and robotics
⚠️ Safety Notice: This cell is intended for use by qualified battery pack assemblers only. Not for use in vaping devices. Always handle with proper insulation, use a BMS, and follow safe lithium battery handling practices. Keep away from children.
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