2-Pack 18650 2600mAh 13A Flat Top Rechargeable Li-ion Batteries – 3.7V for Flashlights, Headlamps, Toys, Fans & Speakers
Description
Description
Equip your everyday devices with the perfect balance of power and stamina using this 2-pack of 18650 2600mAh 13A flat top batteries. Designed as a reliable workhorse for moderate to moderately high-drain gear, these 3.7V lithium-ion cells deliver a steady 13A continuous discharge that easily handles bright flashlights, long-running headlamps, motorized toys, portable fans, and Bluetooth speakers. The flat top design ensures a secure fit in battery packs, multi-cell trays, and flat-contact devices. With a real 2600mAh capacity, you get extended runtime without the bulk or cost of disposable batteries. As unprotected cells, they require responsible handling – always pair with a smart Li-ion charger and use in equipment that has built-in over-discharge protection, or add a protection board. Recharge over 500 times, forget the memory effect, and keep your gear going strong.
Key Features
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13A Continuous Discharge – True 13A output with low voltage sag. Perfect for flashlights on high mode, motors in toys, and power-hungry portable speakers without tripping protection circuits.
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2600mAh Reliable Capacity – Classic capacity that strikes a sweet spot between runtime and cell longevity. Powers your headlamp through a whole night shift or keeps a fan spinning for hours.
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Flat Top Positive Terminal – Standard flat contact for battery packs, multi-cell sleds, and most devices that accept 18650 flat tops. Check your device: some flashlights require button tops for proper connection.
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Rechargeable & Economical – Over 500 charge/discharge cycles, replacing hundreds of single-use batteries. Zero memory effect means you can recharge anytime without harming the cell.
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Unprotected Cell – Informed Use Required – These are bare cells without a protection circuit board (PCB). You must use a dedicated Li-ion smart charger and a device that enforces a 2.5V low-voltage cut-off. Never over-discharge, short-circuit, or leave charging unattended.
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Standard 18650 Form Factor – Dimensions approx. 18.3 mm x 65.0 mm, weight about 46 g per cell. Fits virtually any 18650-compatible device.
Parameters
| Specification | Value |
|---|---|
| Model | 18650 |
| Chemistry | Li-ion |
| Nominal Voltage | 3.7 V |
| Charging Voltage | 4.2 V ±0.05 V |
| Discharge Cut-off Voltage | 2.5 V (strict, never over-discharge) |
| Rated Capacity | 2600 mAh (0.2C discharge) |
| Max Continuous Discharge | 13 A |
| Max Pulse Discharge | 20 A (<2 seconds) |
| Positive Terminal | Flat Top |
| Protection Circuit | None (unprotected) |
| Cycle Life | ≥500 cycles to 80% capacity |
| Internal Resistance | ≤30 mΩ (typical) |
| Dimensions | (18.3±0.2) mm x (65.0±0.2) mm |
| Weight | ~46 g per cell |
Applications
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LED Flashlights & Torches – Runs medium to high brightness modes stably on EDC lights, tactical torches, and outdoor lanterns without premature step-down.
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Headlamps & Work Lights – Ideal for camping, running, industrial inspection, and night-fishing headlamps that need steady illumination for hours on a single charge.
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Toys & Hobby Models – Provides the instant current required by remote-control cars, foam dart blasters, robot kits, and other motor-driven toys.
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Portable Fans & Coolers – Powers personal desk fans, clip-on fans, and misting fans through long workdays or camping trips.
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Bluetooth Speakers & Audio Gear – Supports high-volume playback without distortion or shutdown, thanks to the stable 13A output.
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Solar Garden Lights & Outdoor Lamps – Direct replacement for worn-out cells; the ample 2600mAh stores enough energy for all-night lighting.
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DIY Electronics & Instruments – Powers Arduino projects, digital multimeters, wireless mice, and small measurement devices reliably.
FAQ
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Q: Are these batteries protected?
A: No. These are unprotected flat top cells. You must use a smart Li-ion charger and ensure your device has a built-in over-discharge protection circuit that cuts off at 2.5V. If not, install an external protection board. -
Q: Flat top vs. button top – will these fit my flashlight?
A: Flat tops fit flashlights with flat contacts or multi-cell carriers. Some single-cell flashlights use a mechanical reverse-polarity ring that physically requires a button top. Check your owner’s manual. Using a magnet spacer is possible but must be done with extreme caution to avoid short circuits. -
Q: How long will a 2600mAh battery last in a toy or fan?
A: Roughly, a toy drawing 5A will run about 0.5 hours, while a desk fan pulling 1A can run around 2.5 hours. Actual runtime depends on the device’s exact current draw and usage pattern. -
Q: What charger should I use?
A: A quality Li-ion smart charger for 3.7V 18650 cells (e.g., XTAR, Nitecore, Vapcell). Never use a NiMH/NiCd charger, and avoid cheap USB-powered single-bay chargers without proper charge termination. -
Q: How should I store these cells?
A: Store at approximately 3.7V in a cool, dry place. Recharge every 6 months. Always keep them in a non-conductive plastic case – never loose in pockets, bags, or drawers with metal objects. -
Q: Is a 2600mAh 13A battery better than a 3500mAh 10A battery?
A: It depends. The 13A cell delivers more current for moderately demanding devices (better for toys and bright lights on high). The 3500mAh 10A cell prioritizes maximum runtime at lower currents (ideal for low-drain devices like solar lights). Choose based on whether your device needs more power or longer runtime.
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
These are the batteries you buy when you want something that fits, charges, and powers your devices without drama. 2600mAh, 13A, flat top¡ªas described. Happy.
I run these in my Fenix PD35. The 2600mAh lasts my nightly walks for a week. The 13A discharge is perfect for the 1000-lumen turbo burst. Reliable flat top.
My son's nerf blaster flywheel mod uses these. The 13A punch spins up motors instantly. Much better than the old ICR cells. Safe chemistry and decent capacity.
My DIY boombox uses three of these in parallel. They deliver clean power for the amp, and 2600mAh each gives awesome play time. The flat top simplifies soldering.
Some flat tops are too short, but these are just right. My Wurkkos light makes solid contact. The 13A CDR means it can handle the high mode without issue.
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.