2-Pack Vapcell M35 18650 3500mAh 10A Flat Top Battery – High Capacity for Flashlights, Power Banks & Fans
Description
Description
Maximize your runtime with the Vapcell M35, a high-capacity 18650 cell that delivers an impressive 3500mAh with a stable 10A continuous discharge. This 2-pack is the ideal power solution for devices where endurance matters most: LED flashlights, high-capacity power banks, portable fans, solar lights, and wireless security cameras. The flat top design ensures broad compatibility with spring-loaded contacts and makes spot-welding into custom packs straightforward. With excellent cycle life and Vapcell's trusted cell matching, the M35 provides consistent, long-lasting power for all your everyday devices. When your priority is going longer between charges, the M35 is the endurance champion.
Key Features
-
3500mAh Maximum Capacity – Among the highest capacity available in a 18650 cell. Provides exceptional runtime for medium-drain devices, significantly extending the time between charges.
-
10A Continuous Discharge – Delivers stable, reliable power for most regulated LED flashlights, USB power banks, portable fans, and similar devices without overheating or voltage sag.
-
Flat Top Design – Compatible with all standard 18650 spring-contact chargers, flashlights, and battery trays. The flat terminal is ideal for spot-welding nickel strips in custom battery packs.
-
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 building a compact 7000mAh power bank (2 cells in parallel), keeping a spare ready for your flashlight, or refreshing solar lights.
-
Vapcell Quality Control – Each cell is tested and matched by Vapcell using authentic high-quality cells from major manufacturers (typically LG MJ1 or Panasonic NCR18650GA equivalent), ensuring consistent capacity and low internal resistance.
Parameters
| Parameter | Specification |
|---|---|
| Model | Vapcell IMR18650 M35 |
| Cell Core | High-capacity 18650 (equivalent to LG MJ1 / Panasonic NCR18650GA class) |
| Typical Capacity | 3500 mAh (0.2C discharge to 2.5V) |
| Minimum Capacity | ~3400 mAh |
| Nominal Voltage | 3.6 V (typical operating 3.7 V) |
| Max Continuous Discharge (CDR) | 10 A (cell temperature ≤ 75°C) |
| Max Pulse Discharge | Up to 35 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 (1700 mA) to 4.2 V, cut-off 50 mA |
| Max Charge Current | 1C (3500 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. |
| 18.4 mm diameter × 65.0 mm length | Weight (single cell) | Approx. |
| 48 g | Package Includes | 2 × Vapcell M35 18650 cells in protective packaging |
Applications
Recommended For
-
LED Flashlights & Headlamps: Perfect for single-cell lights on medium to high modes. The 3500mAh capacity provides hours of steady illumination—ideal for camping, hiking, and everyday carry.
-
High-Capacity USB Power Banks: Build a compact 7000mAh power bank with just two cells in parallel. The 10A rating easily supports 18W fast charging protocols.
-
Portable Fans & Cooling Devices: Neck fans, handheld fans, and desk fans benefit from the 3500mAh runtime, keeping you cool for hours on a single charge.
-
Solar Garden Lights & Street Lights: Low-current, long-duration use. One cell can power a bright LED through the entire night.
-
Wireless Security Cameras & Smart Doorbells: Ultra-low standby power consumption with sufficient peak current for motion-activated recording. Months of operation between charges.
-
IoT Devices & Environmental Sensors: Remote battery-powered nodes that need extended operation without frequent maintenance.
-
Medical Devices & Portable Monitors: Reliable, stable power for equipment requiring uninterrupted operation within 10A limits.
Not Recommended For
-
High-Power Vaping / Mechanical Mods (>10A): This is a 10A continuous cell. Sub-ohm builds and high-wattage regulated mods typically require 15–35A continuous. Using the M35 in such devices will cause severe voltage sag, overheating, and potential damage. The "35A Max" is a pulse rating only, not for continuous use.
-
Cordless Power Tools: Drills, saws, and impact drivers demand 15–40A continuous current. Use dedicated high-drain cells like Vapcell K30 (30A) instead.
-
RC Cars, Drones & High-Drain Models: These require 20–30A+ continuous current. The M35 is designed for capacity, not extreme current.
-
FET-Driven Flashlights Exceeding 10A on Turbo: If your light pulls over 10A on maximum mode, choose a cell rated for higher continuous current to avoid damage and maintain brightness.
FAQ
Q: Can I use this battery for vaping? The label says "35A Max."
A: No, not for high-power vaping. The "35A Max" is a pulse rating for very short bursts only. The continuous discharge rating (CDR) is 10A. Most sub-ohm builds and high-wattage mods require 15–35A continuous, which will cause the M35 to overheat, sag severely, and potentially become unsafe. For vaping, choose a dedicated high-drain cell like the Vapcell K30 (30A continuous).
Q: What devices benefit the most from this cell?
A: Any device that draws less than 10A and where you want maximum runtime between charges: LED flashlights on medium/high, USB power banks, portable fans, solar lights, wireless cameras, and smart doorbells. The 3500mAh capacity means you charge less often.
Q: How does the M35 compare to the K30 or other Vapcell models?
A: The M35 is optimized for maximum capacity (3500mAh) with a 10A continuous limit. The K30 is optimized for high current (30A) with 3000mAh capacity. Choose the M35 for long runtime in low-to-medium drain devices. Choose the K30 for high-power vaping, power tools, and extreme flashlights.
Q: What cell is under the Vapcell wrap? Is it genuine?
A: Vapcell is a reputable rewrapper that uses authentic high-quality cells from major manufacturers. The M35 typically uses LG INR18650 MJ1 or Panasonic NCR18650GA cells—both industry-leading 3500mAh/10A cells. Each batch is tested for capacity and internal resistance to ensure consistency.
Q: Can I build a power bank with these?
A: Absolutely. Two M35 cells in parallel give you approximately 7000mAh. The 10A per cell easily supports 18W USB-C PD fast charging. This is one of the best 18650 cells for DIY power bank projects.
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.
Shipping and Returns
-
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 & 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
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:
-
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.