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The Samsung INR18650-20R4 is a high-drain 18650 lithium-ion cell manufactured by Samsung SDI, with a nominal capacity of 2000mAh, a nominal voltage of 3.6V, and a maximum continuous discharge current of 20A (peaking at 22A). It is designed for high-power applications such as power tools, e-bikes, and DIY battery packs. Built on NMC (Nickel Manganese Cobalt) chemistry, it offers a stable discharge platform with low internal resistance (approximately 18mΩ), minimizing voltage sag and heat generation under high current to meet the instantaneous power demands of high-burst devices.
This product is available in four configurations to suit different project connection needs. The Flat Top has a standard flat terminal, suitable for spot-welding assembly or compact battery compartments. The Button Top features a protruding terminal, fitting spring-loaded devices. The Spot Welded Tabs version comes with attached metal tabs, ideal for direct spot-welding into battery packs. The Pre-Wired with Leads version comes with attached wires, suitable for quick replacement or solder-free applications. The 10-pack format caters to multi-device users and bulk spares.
Special Note: Once batteries are spot-welded, they cannot be returned or exchanged for non-quality issues or under the 7-day no-reason return policy. Please consider carefully before purchasing.
2000mAh Capacity: Nominal capacity 2000mAh, with measured C/10 capacity reaching approximately 2120mAh and 7.84Wh energy
20A High-Drain Discharge: Maximum continuous discharge current of 20A, peaking at 22A, meeting high-power device demands
Low Internal Resistance: DC internal resistance of approximately 18mΩ, minimizing voltage sag and heat generation under high current
4A Fast Charging: Maximum charge current of 4A, reducing charging wait times
Four Configuration Options: Flat top, button top, spot welded tabs, and pre-wired with leads for different assembly and usage scenarios
10-Pack Bulk Packaging: Ideal for multi-device users, repair replacements, and DIY projects
Power tools: High-power cordless drills, angle grinders, saws, and professional-grade tool battery packs
E-Bikes and e-scooters: High power output for acceleration and hill climbing
Vaping and high-drain portable devices: Stable high-current output
Energy storage systems: Solar storage and UPS backup battery pack assembly
DIY battery packs: Welded tabs and pre-wired versions for spot welding and quick connections
Q1: What is the capacity of this cell?
A: Nominal capacity is 2000mAh, with measured C/10 capacity reaching approximately 2120mAh and 7.84Wh energy.
Q2: What is the maximum discharge current?
A: Maximum continuous discharge current is 20A, peaking at 22A—a high-drain cell suitable for high-power devices.
Q3: What are the differences between flat top, button top, welded tabs, and pre-wired? Which should I choose?
A: Flat top suits spot-welding assembly or compact battery compartments. Button top fits spring-loaded devices. Welded tabs come with attached metal tabs for direct spot-welding into packs. Pre-wired comes with attached wires for quick replacement or solder-free applications. Choose based on your device’s battery compartment design and assembly method.
Q4: Does this cell have a protection circuit?
A: No. This is an unprotected bare cell and must be used with a BMS or protected devices. Do not discharge below 2.5V.
Q5: How is the cycle life of this cell?
A: The Samsung INR18650-20R series is designed for high-power scenarios and supports hundreds of cycles under proper use. Refer to Samsung’s official datasheet for specific cycle life data.
Q6: Can spot-welded batteries be returned or exchanged?
A: No. Once batteries are spot-welded, they cannot be returned or exchanged for non-quality issues or under the 7-day no-reason return policy. Please confirm specifications and quantity before ordering.
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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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.
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