2-Pack Lishen 2600mAh 13A 18650 Flat Top Battery – Balanced Capacity & Drain for Flashlights, Headlamps, Fans & DIY
Description
Short Description
The Lishen 2600mAh 13A 18650 flat top battery strikes the perfect balance between runtime and power. This 2-pack is an excellent all-rounder for devices that need more than just capacity: LED flashlights, headlamps, portable fans, electric toys, and DIY projects. With a true 13A continuous discharge and a reliable 2600mAh capacity, it handles medium-to-high current demands without the premium price of ultra-high-drain cells. The flat top design fits all standard spring-contact chargers and lights, and makes spot-welding into custom packs straightforward. From nightly dog walks to weekend projects, the Lishen SK 2600 delivers consistent, dependable energy.
Key Features
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Balanced 2600mAh / 13A Performance – Not just a high-capacity cell, nor a pure high-drain cell, but a versatile middle ground. Enough capacity for solid runtime, enough current for devices that occasionally demand more power.
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13A Continuous Discharge – Safely powers regulated LED flashlights on high, portable fans, and even light-duty power tools or airsoft guns without dangerous voltage sag.
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Flat Top Design – Universally compatible with 18650 spring-contact battery holders, chargers, and flashlights. The flat positive terminal is also ideal for spot-welding nickel strips in custom battery packs.
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Lishen Quality & Reliability – Manufactured by Lishen, a trusted name in lithium-ion production. Each cell is built to deliver consistent capacity and low internal resistance over hundreds of cycles.
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2-Pack Convenience – Perfect for keeping a spare charged for your everyday flashlight or headlamp, or for building a small series pack for a DIY project.
Parameters
| Parameter | Specification |
|---|---|
| Brand / Model | Lishen 18650 SK 2600 13A |
| Typical Capacity | 2600 mAh (0.2C discharge to 2.5V) |
| Minimum Capacity | Approx. 2500 mAh |
| Nominal Voltage | 3.6 V (typical operating 3.7 V) |
| Max Continuous Discharge | 13 A (cell temperature ≤ 75°C) |
| Max Pulse Discharge | Up to 18–20 A (short burst, monitor temperature) |
| Discharge Cut-off Voltage | 2.5 V (do not over-discharge) |
| Standard Charge | CC-CV, 0.5C (1300 mA) to 4.2 V, cut-off 50 mA |
| Max Charge Current | 1C (2600 mA); 0.5C recommended for best longevity |
| Internal Resistance | ≤ 35 mΩ (AC 1 kHz) |
| Cycle Life | ≥ 300 cycles (to 80% capacity, 0.5C charge / 1C discharge) |
| Operating Temperature (Discharge) | -20°C to 60°C (ensure adequate cooling at sustained 13A) |
| Top Type | Flat Top |
| Dimensions | Approx. 18.4 mm diameter × 65.0 mm length |
| Weight (single cell) | Approx. 46 g |
| Package Includes | 2 × Lishen 2600mAh 13A flat top 18650 cells in protective packaging |
Applications
Recommended For
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LED Flashlights & Torches: Ideal for single-cell lights on medium to high modes. The 13A rating handles most regulated drivers with ease, while 2600mAh gives useful runtime.
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Headlamps & Bicycle Lights: Lightweight and long-lasting enough for night hikes, runs, or commutes. No need to carry spare batteries for a typical evening outing.
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Portable Fans: Neck fans, handheld fans, and small desk fans benefit from the balanced capacity and the ability to maintain speed without voltage drop.
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Electric Toys & Airsoft Guns: Many RC cars and airsoft AEGs draw pulses of 8–12A. This cell provides the necessary current without overheating.
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Light-Duty Power Tools: Small electric screwdrivers and 3.6V cordless drills can be powered by these cells when used in a properly protected battery pack.
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DIY Projects: A great cell for custom battery packs, backup power banks, or Arduino projects that may draw moderate currents.
Not Recommended For
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Ultra-Long Runtime Low-Power Devices: If you use a flashlight mainly on low modes, a 3500mAh cell will give you significantly longer runtime.
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High-Power Vaping (Sub-Ohm Mechanical Mods): These often require 20A+ continuous. Exceeding 13A can lead to overheating and damage.
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Heavy-Duty Power Tools: Angle grinders, hammer drills, and large saws demand 15A+ continuous; use dedicated 20–25A high-drain cells.
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Maximum Capacity Solar Lights: 3500mAh cells will store more energy for overnight illumination.
FAQ
Q: Is 2600mAh considered “high capacity”?
A: It is a mid-to-high capacity cell by general standards, but not the highest. 3500mAh cells are now common for maximum runtime. The Lishen 2600mAh is balanced to also deliver 13A, something many 3500mAh cells (typically rated 10A) cannot do as efficiently under heavier loads.
Q: Can I use these batteries for vaping?
A: Only for low-to-medium power regulated mods drawing well under 13A. For sub-ohm builds or mechanical mods, you need a dedicated high-drain cell (20A or higher). Exceeding 13A on this cell can be unsafe.
Q: Are these protected batteries?
A: No, these are unprotected flat top cells. This is standard for 18650s used in flashlights and DIY packs. Your device should have its own low-voltage protection. When building multi-cell packs, always add an external BMS rated for at least 15A.
Q: Can I use these to replace batteries in my old power tool pack?
A: Yes, for light-duty tools like small electric screwdrivers. The 13A rating is suitable for tools that do not draw heavy continuous currents. Ensure all cells are matched and you install a proper BMS.
Q: How should I store these cells?
A: Store at around 3.6–3.7V (40–50% state of charge) in a cool, dry place. Use non-conductive battery cases to prevent accidental short circuits. Avoid leaving them fully charged or deeply discharged for long periods.
Shipping and Returns
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Free Shipping: Enjoy free shipping on all orders over $65. For orders under $65, the shipping cost is $8.99.
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Delivery Time: Once shipped, orders typically arrive within 7–15 business days.
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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 & Security
Payment methods
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Security
Just as the title says: high capacity, flat top, 3.7V. They power my emergency radio through long evenings. I keep two charged and rotate regularly.
I share these between my camping lantern, a small fan, and a magnetic work light. They never balk at being swapped. Good universal 18650 batteries.
They fit my Fenix light perfectly¡ªno need for button tops. The wrap is smooth and durable. Great for anyone who uses unprotected cells in low-to-medium drain devices.
You get 2600mAh of genuine capacity. I ran a discharge test and was satisfied. Works great in my headlamp for early morning jogs. Bright and long-lasting.
The flat top is perfect for my series battery sled. These cells maintain balance well. I've run them through about 30 cycles and capacity hasn't noticeably dropped.
Refund Policy
OneAndes Return & Refund Policy
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:
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Condition: Items must be unused, undamaged, and in the same condition that you received them.
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Packaging: Items must be returned in their original packaging with all accessories, manuals, and protective covers intact.
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Proof of Purchase: A valid receipt, order confirmation email, or proof of purchase must accompany all returns.
Non-Returnable Items:
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Batteries that have been installed, used, or show any signs of wear.
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Items marked as “Final Sale” or “Clearance” at the time of purchase.
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Customized or special-order products.
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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:
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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.
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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.
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Pack Securely: Place the item in its original packaging, include all accessories, and clearly write the RMA number on the outside of the box.
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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
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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.
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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.
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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.
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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.
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Partial Refunds: In certain situations, only partial refunds may be granted:
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Items not in original condition, missing parts, or damaged for reasons not due to our error.
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Items returned more than 30 days after delivery (reviewed on a case-by-case basis).
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Non-Refundable Fees: Original shipping charges are non-refundable unless the return is due to our error (defective product or incorrect shipment).
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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:
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Email: support@oneandes.com
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Phone: (213) 316-8849 (Mon-Fri, 9 AM – 5 PM Pacific Time)
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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.