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Product Description:
The SwisLight INR 26650 A is a premium Swiss-designed 26650 high-drain lithium-ion battery engineered for high-capacity, high-power applications. This 2pcs bundle delivers a massive 5700mAh capacity and an impressive 20A continuous discharge current, making it the ideal power core for multi-battery high-power series connections and demanding devices such as high-intensity tactical flashlights, professional camera flashes, and high-torque power tools.
Built with advanced ternary lithium chemistry, this cell offers ultra-low internal resistance, high energy density, and reliable performance under sustained heavy loads. The small button top design supports series connection, perfect for building custom high-power battery packs. Please note: If your device requires a Large Button Top (67.5mm length) instead of the standard Small Button Top (67mm length), please let us know when placing your order.
Key Features:
2pcs of SwisLight INR 26650 A Premium Cells: High-quality Swiss-designed 26650 Li-ion batteries with a true 5700mAh capacity.
20A High Continuous Discharge: Delivers a powerful 20A continuous output for the most demanding applications.
Ternary Lithium Chemistry: Provides ultra-low internal resistance, high energy density, and excellent power delivery.
Small Button Top Design: Features a small protruding positive terminal (67mm length) that supports series connection.
Customizable Top Option: A Large Button Top (67.5mm) is available upon request for devices requiring a larger contact surface.
Swiss Engineering Quality: Built to high standards for durability, consistency, and reliable performance.
Standard 26650 Size: Perfectly fits standard 26650 battery compartments (26.2mm diameter).
Product Parameters:
Brand: SwisLight
Model: INR 26650 A
Size: 26650
Capacity: 5700mAh (21Wh)
Nominal Voltage: 3.7V
Continuous Discharge Current: 20A
Chemistry: Ternary Li-ion (Lithium Ion)
Top Type: Small Button Top (Standard, 67mm) / Large Button Top (Custom, 67.5mm)
Series Connection Support: Yes
Dimensions: 26.2mm (Diameter) x 67mm (Height - Small Button Top)
Pack Quantity: 2pcs
Applications:
High-Intensity Tactical Flashlights: Powers the brightest tactical flashlights and searchlights with 20A continuous energy.
Professional Camera Flashes: Delivers sustained 20A power for rapid recycle times and burst shooting.
High-Torque Cordless Power Tools: Drives demanding power tools, impact drivers, and electric drills.
High-Performance RC Hobbies & Drones: Provides sustained high-current power for high-torque RC cars and drones.
Multi-Battery Series Battery Packs: Ideal core for building custom 24V, 36V, or 48V battery packs.
Frequently Asked Questions (FAQ):
Q1: What is the discharge current of this battery?
A1: This SwisLight INR 26650 A is rated for a powerful 20A continuous discharge current, making it one of the highest-performing 26650 cells available for power-hungry applications.
Q2: What is the difference between the Small Button Top and Large Button Top?
A2: The standard Small Button Top has a length of 67mm. If your device requires a larger contact surface, a Large Button Top version is available at 67.5mm length. Please mention your requirement when placing your order.
Q3: Can I use these batteries in series?
A3: Yes, the button top design supports series connection, making this battery ideal for building custom multi-battery high-power battery packs.
Q4: What is the advantage of the ternary lithium chemistry?
A4: Ternary lithium chemistry provides higher energy density, lower internal resistance, and better high-current discharge performance compared to standard Li-ion cells. This makes it the ideal choice for high-drain devices like camera flashes and power tools.
Q5: What kind of charger should I use for this battery?
A5: You must use a charger specifically designed for 3.6V/3.7V Li-ion batteries with a 4.2V cut-off voltage. Do not use a standard AA/AAA Ni-MH charger.
Free Shipping: Enjoy free shipping on all orders over $65. For orders under $65, the shipping cost is $8.99.
Delivery Time: Once shipped, orders typically arrive within 7–15 business days.
Easy Returns: We want you to be completely satisfied. If you're not, you can return your product within 30 days of receiving your order. Please ensure the items are unused and in their original condition. For return instructions, please contact our support team.
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If you have a high-current device, these are a must-buy. The low IR prevents voltage drops and increases efficiency.
I'm impressed with how well these handle my daily power tools.
I used these to refurbish an old battery pack for my drill. The performance is better than the original factory cells.
It prevents accidental short circuits in tight metallic housings, which is a huge safety feature.
Despite the huge capacity, they recharge surprisingly fast. My high-amp charger gets them back to 4.2V in no time.
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