Product Description:
The Molicel INR-21700-P45B is a flagship-grade 21700 lithium-ion battery cell that sets a new standard for ultra-high capacity and extreme high-power performance. This 2 Pcs bundle delivers a massive 4500mAh true capacity, a blistering 45A (10C) continuous discharge current, and an industry-leading ultra-low internal resistance of ≤8mΩ. It provides more runtime and less heat than any comparable cell in its class.
Manufactured by Molicel, the P45B combines the highest energy density with extreme power output. It features a full self-inspection safety valve with triple exhaust vents and a bottom sealing cap, ensuring superior explosion-proof and leak-proof protection. The cell supports 1000+ cycles with reliable performance.
To suit your specific project needs, we offer 5 customized options:
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Flat Top (2 Pcs): Standard 21mm x 70mm flat terminal (≤8mΩ IR).
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Button Top (2 Pcs): 21mm x 73mm with a protruding nub for recessed contacts (~10mΩ IR).
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Spot-Welded Tabs (2 Pcs): Pre-welded nickel strips for easy connection (≤8mΩ IR).
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Wired (Red/Black) (2 Pcs): Pre-soldered positive and negative wires for plug-and-play convenience (≤8mΩ IR).
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Built-in Protection Board (2 Pcs): Includes over-charge, over-discharge, and over-current protection (5A discharge limit; size: 21.5mm x 75mm).
Key Features:
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Authentic Molicel INR-21700-P45B Cell: Premium-grade, flagship Molicel 21700 Li-ion battery.
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4500mAh Ultra-High Capacity: Provides massive energy for extended runtimes, outperforming standard 4200mAh cells.
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45A (10C) High Continuous Discharge: Delivers extreme 45A power output with minimal voltage sag.
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Ultra-Low Internal Resistance (≤8mΩ): Ensures virtually no heat generation and maximum power transfer efficiency.
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Advanced Triple-Vent Safety Valve: Full self-inspection safety valve with 3 exhaust vents and bottom sealing cap for ultimate explosion-proof and leak-proof safety.
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1000+ Cycle Life: Offers excellent long-term value and durability.
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Versatile 5 Options: Choose from Flat Top, Button Top, Welded Tabs, Wired, or Protected versions.
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Industrial & Automotive Grade: Designed for high-performance industrial tools, drones, and electric vehicles.
Product Parameters (Based on Provided Specs):
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Brand: Molicel
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Model: INR-21700-P45B
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Size: 21700
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Capacity: 4500mAh
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Nominal Voltage: 3.7V
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Full Charge Voltage: 4.2V
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Continuous Discharge Current: 45A (10C)
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Internal Resistance: ≤8mΩ (Flat/Welded/Wired) / ~10mΩ (Button)
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Weight: Approx. 70g
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Cycle Life: 1000+ cycles
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Safety Design: Full self-inspection safety valve, triple exhaust vents, bottom sealing cap, secondary explosion-proof
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Dimensions (Based on Variant):
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Flat Top / Welded / Wired: 21mm (Dia) x 70mm (H)
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Button Top: 21mm (Dia) x 73mm (H)
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Protected Board: 21.5mm (Dia) x 75mm (H)
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Pack Quantity: 2 Pcs (Selectable)
Applications:
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High-Torque Cordless Power Tools: Drives heavy-duty drills, impact drivers, and saws demanding 45A burst power.
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Heavy-Lift Drones & High-Performance RC: Sustained high-current power for high-torque RC cars and professional UAVs.
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High-Capacity Portable Power Stations: Ideal core cell for building high-power portable energy storage systems.
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Electric Scooters & Light EV Conversions: Reliable high-power cells for e-scooter and e-bike battery packs.
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Professional Automotive & Industrial Equipment: High-performance reliability for demanding industrial machinery and tools.
Frequently Asked Questions (FAQ):
Q1: What is the advantage of the P45B over the P42A?
A1: The P45B offers a higher capacity of 4500mAh (vs 4200mAh) and an even lower internal resistance of ≤8mΩ (vs 10mΩ). This means you get 7% more runtime, less heat generation, and higher efficiency compared to the P42A.
Q2: What is the discharge current of this battery?
A2: The Molicel P45B is rated for an extreme 45A (10C) continuous discharge current, making it one of the most powerful 21700 cells available.
Q3: How does the triple-vent safety valve work?
A4: The battery features a full self-inspection safety valve with 3 exhaust vents and a bottom sealing cap. In the rare event of an internal short circuit or pressure buildup, the vents rapidly exhaust internal gases, preventing swelling, leakage, or explosion.
Q4: What kind of charger should I use for this battery?
A5: You must use a high-quality charger specifically designed for 3.6V/3.7V Li-ion batteries with a 4.2V cut-off voltage. A smart charger capable of delivering up to 4.5A (1C) is recommended for optimal charging speed.
