Description
Shipping and Returns
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Security

Free Shipping on Orders Over $65
Product Description:
The SwisLight ICR26650A is a premium Swiss-designed 26650 high-drain lithium-ion battery engineered for extreme power applications. This 2pcs bundle delivers a true 5000mAh capacity with an impressive 20A continuous discharge and 40A peak current. It is the ultimate power source for 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. It provides the instant, explosive power needed for the most demanding devices.
To suit your specific device requirements, we offer 3 top-terminal variants:
Flat Top (2pcs): Length 65.2mm. Standard flat positive terminal. Does NOT support series connection. Ideal for battery pack assembly.
Large Button Top (2pcs): Length 67.5mm. Features a large protruding positive terminal. Supports series connection.
Small Button Top (2pcs): Length 66.7mm. Features a small protruding positive terminal. Supports series connection. (Default shipping version.)
Key Features:
2pcs of SwisLight ICR26650A Premium Cells: High-quality Swiss-designed 26650 Li-ion batteries with a true 5000mAh capacity.
20A High Continuous Discharge: Delivers a powerful 20A continuous output (40A peak) for the most demanding applications.
Ternary Lithium Chemistry: Provides ultra-low internal resistance, high energy density, and excellent power delivery.
Versatile Top Options: Choose from Flat Top, Large Button Top, or Small Button Top to ensure compatibility with your device.
Swiss Engineering Quality: Built to high standards for durability, consistency, and reliable performance.
Standard 26650 Size: Perfectly fits standard 26650 battery compartments (26mm diameter).
Product Parameters:
Brand: SwisLight
Model: ICR26650A
Size: 26650
Capacity: 5000mAh
Nominal Voltage: 3.7V
Continuous Discharge Current: 20A
Peak Discharge Current: 40A
Chemistry: Ternary Li-ion (Lithium Ion)
Variant Options: Flat Top (65.2mm) / Large Button Top (67.5mm) / Small Button Top (66.7mm)
Series Connection Support: Yes (Button Top variants) / No (Flat Top)
Dimensions: 26mm (Diameter) x Height varies by variant
Pack Quantity: 2pcs
Applications:
High-Intensity Tactical Flashlights: Powers the brightest tactical flashlights and searchlights with 20A continuous energy.
Professional Camera Flashes: Delivers 40A peak 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.
DIY Battery Pack Assembly: Button Top variants are suitable for building custom 12V/24V battery packs.
Frequently Asked Questions (FAQ):
Q1: What is the difference between the three variants?
A1: * Flat Top (65.2mm): Flat positive terminal. Does NOT support series connection. * Large Button Top (67.5mm): Large protruding terminal. Supports series connection. * Small Button Top (66.7mm): Small protruding terminal. Supports series connection. (Default shipping.)
Q2: What is the discharge current of this battery?
A2: This SwisLight 26650A is rated for a powerful 20A continuous discharge current with a 40A peak, making it one of the highest-performing 26650 cells available for power-hungry applications.
Q3: Can I use these batteries in series?
A3: Yes, the Button Top variants (both Large and Small) support series connection for custom battery packs. The Flat Top variant does NOT support series connection.
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.
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Security

Received them quickly and tested them immediately. The voltage is stable and the current output is impressive.
These are perfect for anyone building their own high-drain devices. Highly recommended.
They have been extremely reliable over the last few weeks. They hold a charge and deliver power consistently.
The build quality is top-notch. The positive terminal is robust and the wrap doesn't peel.
These are overkill for a simple flashlight. You really need to push them to see their true capability.
At OneAndes, we are committed to providing high-quality cylindrical lithium-ion batteries for your drones, vacuums, garden tools, and other power needs. If you are not completely satisfied with your purchase, we are here to help. Please read our full return policy below before initiating a return.
1. Return Window
You have 30 calendar days from the date you received your item(s) to request a return. Any return request submitted after 30 days will not be eligible for a refund or exchange.
2. Eligibility Conditions
To qualify for a return, all items must meet the following conditions:
Condition: Items must be unused, undamaged, and in the same condition that you received them.
Packaging: Items must be returned in their original packaging with all accessories, manuals, and protective covers intact.
Proof of Purchase: A valid receipt, order confirmation email, or proof of purchase must accompany all returns.
Non-Returnable Items:
Batteries that have been installed, used, or show any signs of wear.
Items marked as “Final Sale” or “Clearance” at the time of purchase.
Customized or special-order products.
Gift cards.
If a returned item fails to meet these conditions, we reserve the right to deny the return or charge a restocking fee.
3. How to Initiate a Return
Follow these steps to return your product:
Contact Us: Email our support team at support@oneandes.com with your order number and the reason for return. We aim to respond to all return requests within 24 hours on business days.
Receive RMA: We will provide you with a Return Merchandise Authorization (RMA) number and return instructions. Do not ship any item without an RMA number.
Pack Securely: Place the item in its original packaging, include all accessories, and clearly write the RMA number on the outside of the box.
Ship to Our US Warehouse: Ship the package to the following address:
OneAndes Returns
10320 6th St
Rancho Cucamonga, CA 91730
USA
*Important: Lithium-ion batteries are classified as hazardous materials (Class 9). Please follow the shipping guidelines provided in Section 4 below. We recommend using a trackable shipping service and purchasing shipping insurance, as we cannot guarantee receipt of your returned item.*
4. Return Shipping Costs
Defective or Incorrect Items: If the item you received is defective, damaged in transit, or different from what you ordered, OneAndes will cover the return shipping cost. In this case, we will provide you with a prepaid return shipping label.
Buyer’s Remorse / Non-Defective Returns: If you are returning an item for any other reason (e.g., no longer needed, ordered the wrong model), you are responsible for the return shipping costs. You must prepay the return shipping cost using a trackable carrier that accepts lithium batteries. We do not provide prepaid return labels for non-defective returns.
Lithium Battery Shipping Regulations: By law, all returns must be shipped in compliance with applicable dangerous goods regulations. We will provide guidance on proper packaging and labeling. Failure to comply may result in carrier refusal, seizure, or additional fees. We are not responsible for returned items lost or rejected by the carrier due to improper shipping.
5. Refunds
Once we receive and inspect your return at our Rancho Cucamonga, CA facility, we will notify you via email of the approval or rejection of your refund.
Approved Refunds: If approved, your refund will be processed to your original method of payment within 5 to 10 business days. Please note that depending on your bank or credit card issuer, it may take additional time for the credit to appear on your statement.
Partial Refunds: In certain situations, only partial refunds may be granted:
Items not in original condition, missing parts, or damaged for reasons not due to our error.
Items returned more than 30 days after delivery (reviewed on a case-by-case basis).
Non-Refundable Fees: Original shipping charges are non-refundable unless the return is due to our error (defective product or incorrect shipment).
Restocking Fee: We do not charge a restocking fee for defect-free returns, but we may deduct the return shipping cost, which will be deducted from your refund.
6. Exchanges
We replace items only if they are defective or damaged upon arrival. If you need to exchange a defective item for the same product, please contact us at support@oneandes.com. Exchanges are subject to product availability.
If you ordered the wrong battery size or model, please follow the standard return process above and place a new order for the correct item.
7. Damaged or Missing Items
If your package arrives visibly damaged, please take photos of the package before opening and contact us immediately. We will work with the shipping carrier to file a claim and arrange for a replacement or refund. Damaged or missing item claims must be reported within 7 calendar days of delivery. For immediate assistance, you may also call us at (213) 316-8849.
8. Order Cancellation
You may cancel your order without penalty if it has not yet been shipped. To cancel, email us at support@oneandes.com as soon as possible. If the order has already been processed or shipped, you will need to follow the standard return process upon receipt.
9. Warranty
All OneAndes batteries are backed by a 12-month limited warranty against defects in materials and workmanship. This warranty does not cover damage caused by misuse, improper charging, unauthorized modifications, normal wear and tear, or use outside of manufacturer specifications. For warranty claims, please contact our support team.
10. Contact Us
If you have any questions about our Return & Refund Policy, please reach out:
Email: support@oneandes.com
Phone: (213) 316-8849 (Mon-Fri, 9 AM – 5 PM Pacific Time)
Mailing Address: 10320 6th St, Rancho Cucamonga, CA 91730, USA
We aim to respond to all inquiries within 24 hours during business days. Please include your order number for faster assistance.
Top Brands
Samsung LG Panasonic Molicel EVE
Full Size Range
From 10440 to 4680
B2B Experts
Bulk Discounts Global Logistics
Genuine & Safe
A‑grade cells & Certified
