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Maximize runtime in your compact devices with the Vapcell 18500 2400mAh battery. This 2-pack delivers a substantial 2400mAh capacity and a steady 5A continuous discharge, making it an outstanding power solution for short-body flashlights, lightweight headlamps, portable fans, electric toothbrushes, and medical equipment designed for the 18500 form factor. At only 50mm long—15mm shorter than an 18650—it fits where longer cells cannot, while providing far more endurance than smaller 18350 alternatives. The flat top design ensures reliable contact with spring-loaded terminals. Important: The 18500 is a distinct battery size. Always verify your device explicitly requires an 18500 cell before ordering—it will not fit in 18650 or 18350 compartments. With Vapcell's trusted quality and excellent cycle life, this 2-pack keeps your essential gear running longer between charges.
2400mAh High Capacity – Among the highest capacities available in the 18500 form factor. Delivers approximately 10–20% more runtime than standard 2000–2200mAh 18500 cells, giving you noticeably longer operation between charges.
5A Continuous Discharge (CDR) – Stable, reliable power for regulated LED flashlights, headlamps, portable fans, electric toothbrushes, and similar medium-drain electronics. Handles brighter flashlight modes and moderate motor loads with ease.
Flat Top Design – Universally compatible with devices featuring spring-loaded contacts. The flat positive terminal is also ideal for spot-welding nickel strips in custom battery packs.
18500 Form Factor – The Shorter Advantage – Same diameter as an 18650 (18mm) but only 50mm long—15mm shorter. Perfect for devices that need more capacity than an 18350 but cannot accommodate a full-size 18650. Always measure your device's battery compartment before ordering.
INR Chemistry – Offers excellent energy density and low internal resistance, making these cells ideal for everyday use across a wide range of portable electronics.
Long Cycle Life – Retains over 80% of initial capacity after 500 charge/discharge cycles under recommended conditions, reducing long-term replacement costs.
2-Pack Convenience – Perfect for powering a specialty flashlight and keeping a charged spare, or for devices that require two 18500 cells.
| Parameter | Specification |
|---|---|
| Model | Vapcell 18500 2400mAh 5A |
| Form Factor | 18500 (18.3 mm diameter × 50.0 mm length) |
| Chemistry | INR (Lithium Nickel Manganese Cobalt, standard 3.6V/3.7V) |
| Typical Capacity | 2400 mAh (0.2C discharge to 2.5V) |
| Minimum Capacity | ~2300 mAh |
| Nominal Voltage | 3.6 V (typical operating 3.7 V) |
| Max Continuous Discharge (CDR) | 5 A (cell temperature ≤ 75°C) |
| Max Pulse Discharge | Up to 8 A (short burst only, monitor temperature; not for continuous use) |
| Discharge Cut-off Voltage | 2.5 V (do not over-discharge) |
| Standard Charge | CC-CV, 0.5C (1200 mA) to 4.2 V, cut-off 50 mA |
| Max Charge Current | 1C (2400 mA); 0.5C recommended for best longevity |
| Internal Resistance | ≤ 35 mΩ (AC 1 kHz) |
| Cycle Life | ≥ 500 cycles (to 80% capacity, 0.5C charge / 1C discharge) |
| Operating Temperature (Discharge) | -20°C to 60°C |
| Top Type | Flat Top |
| Dimensions | Approx. |
| 18.3 mm diameter × 50.0 mm length (15mm shorter than 18650) | |
| Weight (single cell) | Approx. |
Recommended For
Specialty Short-Body Flashlights (18500 Compatible): Certain compact EDC lights are designed specifically for 18500 cells. The 2400mAh capacity provides extended illumination, and the 5A CDR handles medium-high and even brief turbo modes with confidence. Must verify your flashlight uses 18500 cells.
Compact Headlamps: Noticeably lighter than 18650-powered models, yet with ample capacity for long night hikes, cave exploration, or professional inspections.
Portable Fans & Mini Cooling Devices: Some compact fans accept 18500 cells. The 5A output supports higher fan speeds, while the 2400mAh capacity ensures longer cooling sessions.
Electric Toothbrushes (Select Models): High-end rechargeable toothbrushes using 18500 cells benefit from the extended runtime—fewer charging cycles, more brushing sessions.
Portable Medical Devices: Compact diagnostic tools, portable monitors, and infusion pumps that require reliable, long-lasting power in a shorter-than-18650 package.
Compact Power Tools (Select Models): Small electric screwdrivers and engraving pens that use 18500 cells and need moderate current delivery.
Not Recommended For
18650 or 18350 Devices: The 18500 is a distinct size—15mm shorter than an 18650 and 15mm longer than an 18350. It will not fit properly in compartments designed for other sizes. Always verify your device's battery tube length.
Standard 1.5V AA Devices: This is an 18mm diameter, 3.7V cell. It is completely incompatible with AA devices in both voltage and physical size.
High-Drain Devices (>5A Continuous): For FET-driven turbo flashlights requiring 8–10A, high-power vaping, or heavy-duty power tools, use a dedicated high-drain 18500 like the Vapcell 2000mAh (10A) or a larger form factor cell.
Q: What is an 18500 battery? Will it fit my 18650 flashlight or 18350 device?
A: The 18500 has the same diameter as an 18650 (18mm) but is only 50mm long—15mm shorter than an 18650 and 15mm longer than an 18350. It is a distinct size and will only fit devices specifically designed for 18500 cells. Always check your device's manual or measure the battery compartment before ordering.
Q: How does the 2400mAh capacity compare to other 18500 cells?
A: 2400mAh is among the higher capacities available in the 18500 form factor. It provides approximately 10–20% more runtime than typical 2000–2200mAh cells, making it an excellent choice for users who prioritize maximum endurance in their short-body devices.
Q: Can I use this battery in my AA-powered device?
A: No. This is an 18mm diameter, 3.7V lithium-ion cell. Standard AA devices use 14mm diameter, 1.5V cells. Both the voltage and physical size are incompatible, and using this cell will permanently damage the device.
Q: Can I charge this with any lithium-ion charger?
A: Yes. This cell uses standard lithium-ion charging (CC-CV to 4.2V). It is compatible with most quality chargers that accommodate 50mm-long cells. Charge at 0.5C (1200mA) for best longevity.
Q: How should I store these cells when not in use?
A: Store at 3.6–3.7V (approximately 40–50% charge) in a cool, dry place. Use non-conductive battery cases to prevent accidental short circuits. Avoid storing fully charged or deeply discharged for extended periods.
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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