Product Description:
This NUOXIANG NX INR18650-25P 18.5V 5000mAh 8C 20A Pre-Welded Li-ion Battery Pack is a premium high-performance power solution engineered for heavy-duty applications. Built in a 2 Parallel × 5 Series (2P5S) layout, it delivers a powerful 18.5V output and a high-capacity 5000mAh runtime, making it ideal for 18V-class cordless power tools, high-intensity lighting, and advanced RC equipment.
Featuring genuine INR18650-25P cells with an impressive 8C / 20A continuous discharge rate and an ultra-low internal resistance of ≤14mΩ, this battery pack ensures explosive, stable power delivery even under extreme load. The nickel tabs come pre-spot-welded, allowing for quick, hassle-free connection directly to your device's wiring. With a wide operating temperature range, it performs reliably in both cold and hot environments.
Key Features:
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High-Capacity 2P5S Layout (18.5V 5000mAh): Features a 2 Parallel × 5 Series configuration, delivering a stable 18.5V output and a reliable 5000mAh capacity for extended runtimes.
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8C / 20A Massive Discharge Current: Utilizes INR18650-25P cells to provide a powerful 20A continuous discharge, meeting the demands of heavy-duty power tools.
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Ultra-Low Internal Resistance (≤14mΩ): Ensures minimal heat generation and maximum energy transfer efficiency during heavy, sustained use.
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Pre-Welded Nickel Tabs: Comes with nickel strips already spot-welded for easy connection. No need for complicated soldering or battery spot welding.
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Wide Operating Temperature (-20°C to 80°C): Guarantees reliable performance across extreme temperature fluctuations, suitable for diverse environments.
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Professional Quality Assurance: Manufactured by NUOXIANG NX, a trusted brand in high-performance power solutions.
Product Parameters:
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Brand: NUOXIANG NX
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Cell Model: INR18650-25P
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Configuration: 2 Parallel × 5 Series (2P5S)
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Total Voltage: 18.5V
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Total Capacity: 5000mAh
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Single Cell Capacity: 2500mAh
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Nominal Voltage: 3.7V
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Discharge Rate: 8C
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Max Continuous Discharge Current: 20A
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Internal Resistance: ≤14mΩ
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Tab Layout: Pre-welded nickel tabs for easy connection
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Charge Temperature: 0°C to 50°C
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Discharge Temperature: -20°C to 80°C
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Charging Cut-off Voltage: 4.2V (per cell)
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Cell Dimensions: 18mm (Diameter) x 65mm (Height) Flat Top
Applications:
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18V-Class Cordless Power Tools: The perfect power upgrade for 18V cordless drills, impact drivers, saws, and other high-torque tools.
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High-Performance Tactical Flashlights: Delivers stable 20A discharge for high-lumen searchlights and tactical flashlights in professional and outdoor settings.
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RC Hobbies & Drones: Powers high-torque RC cars, heavy-lift drones, and advanced RC aircraft.
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Portable Energy Storage Systems: A reliable core for building custom high-discharge portable power stations and energy storage systems.
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Professional DIY Projects: The ideal power solution for makers and DIY enthusiasts building custom high-current devices.
Frequently Asked Questions (FAQ):
Q1: What does "2P5S" mean in this battery pack?
A1: "2P5S" means the pack is arranged in a 2 Parallel × 5 Series configuration. It consists of 10 cells total: 5 sets of cells connected in series (to achieve 18.5V), with each series set having 2 cells connected in parallel (to achieve 5000mAh capacity).
Q2: What is the advantage of the 8C / 20A discharge rate?
A2: The 8C / 20A discharge rate means this battery can deliver 20 amps of continuous current. This is significantly higher than standard 1C batteries, making it capable of powering high-torque drills and saws that standard cells cannot handle.
Q3: What does "≤14mΩ" internal resistance mean for my devices?
A3: Ultra-low internal resistance (≤14mΩ) means the battery generates much less heat and loses less energy during high-current discharge. This translates to more power reaching your device and longer battery life, especially under heavy loads.
Q4: Are the nickel tabs already welded to the batteries?
A4: Yes! The nickel tabs are pre-spot-welded for easy connection. There is no need for complicated soldering or spot welding equipment. You can connect them directly to your device's wiring.
Q5: How do I charge this 2P5S 5000mAh battery pack?
A5: You must use a charger specifically designed for 18.5V/21V Lithium-ion battery packs. The charger must support a cut-off voltage of 21V. We recommend using a dedicated smart charger with over-charge protection.
