DMEGC 2-Pack 18650-35E Rechargeable Battery 3500mAh 3.7V Flat Top Li-ion 10A CDR for Flashlight, Headlamp, Solar Light & Long-Run Devices
Description
Key Features
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High 3500mAh Capacity: delivers significantly longer runtime compared to standard 2600mAh cells, reducing the need for frequent recharging.
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Stable 10A CDR: Optimized for medium to low-power devices, providing smooth and reliable energy output.
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Flat Top Design: Widely compatible with mainstream flashlights, headlamps, and battery holders.
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Low Self-Discharge Rate: Retains capacity well during storage, ideal for seasonal devices like solar lights.
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Convenient 2-Pack: Perfect for multi-cell devices or keeping a spare ready.
Parameters
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Brand: DMEGC
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Model: 18650-35E
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Chemistry: Lithium-Ion (Li-ion)
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Capacity: 3500mAh
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Nominal Voltage: 3.6V / 3.7V
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Max Charge Voltage: 4.20V ± 0.05V
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Discharge Cut-off Voltage: 2.50V
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Max Continuous Discharge Current (CDR): 10A
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Max Pulse Discharge Current: Approx. 15A – 20A
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Top: Flat Top
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Protection: Unprotected (Bare Cell)
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Weight: Approx. 48-50g / cell
Applications
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Everyday Flashlights: Ideal for 200-800 lumen home, cycling, or camping flashlights where runtime is key.
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Headlamps: Perfect for night running, caving, or work tasks requiring long illumination.
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Solar Lights / Garden Lights: Best matched scenario. Provides excellent overnight storage for solar-charged lights.
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Low-Power Electronics:
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Smart sensors / alarms
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GPS trackers
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Vintage radios / music players
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Battery Pack Assembly: For building low-drain 12V/24V lighting systems or backup power for security devices.
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⚠️ NOT Suitable for: High-power tactical lights (1000+ lumens), heavy-duty power tools (drills), or high-performance RC models (15A+).
FAQ
Q: Why does a 3500mAh battery last longer?
A: 3500mAh means it stores more energy. It can provide approx. 30%-40% more runtime than a standard 2600mAh battery under the same load.
Q: What does 10A Continuous Discharge Rating (CDR) mean?
A: It means the battery can safely deliver 10 amps of current steadily. This is sufficient for most flashlights and headlamps but not enough for high-power power tools that require 15A-30A.
Q: Can I use this battery for my high-power tactical flashlight (e.g., Fenix TK75)?
A: Not recommended. High-powered lights often need 15A-30A drain cells. Using the 35E may result in lower brightness or trigger low-voltage protection.
Q: Is this battery good for solar lights?
A: Absolutely. Solar lights require high capacity rather than high current. The 3500mAh capacity allows the light to store more energy and stay on longer during cloudy days.
Q: Does this battery have a protection circuit?
A: No. This is a bare cell. It is recommended to use a device or charger with built-in over-charge/over-discharge protection.
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
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Security

My Zebralight H600 runs forever with this 3500mAh. The 10A covers turbo bursts. DMEGC quality seems solid.
3500mAh in a compact 18650, runs my flashlight for days. 10A is sufficient for up to 15W LEDs. Great for camping.
After sitting 3 months, voltage only dropped 0.05V. Perfect for emergency kits. Capacity is still full.
My analyzing charger measured 3480mAh and 3510mAh. Very accurate. The 10A drain is steady, no voltage sag at 5A.
At 10A constant, the voltage dips to 3.3V quickly. It's ok for short bursts, but best under 5A. Capacity is great.
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.
