2-Pack 18650 3000mAh 30A Flat Top High Drain Rechargeable Batteries – 3.7V Li-ion for Turbo Flashlights & High-Performance Headlamps
Description
Description
Unleash the full potential of your high-demand gear with this 2-pack of 18650 3000mAh 30A flat top batteries. Engineered for devices that crave raw, instantaneous power, these high-drain lithium-ion cells deliver a true 30A continuous discharge with minimal voltage sag—keeping your turbo flashlight blinding, your sub-ohm build hitting hard, and your professional headlamp at peak brightness. The generous 3000mAh capacity provides surprising staying power for a high-rate cell, so you can push your equipment longer between swaps. Flat top terminals ensure a snug, reliable connection in multi-cell packs and flat-contact devices. These are unprotected cells, designed for knowledgeable users who pair them with a smart charger and devices with built-in low-voltage cut-off. Recharge over 500 times, leave disposable batteries behind, and experience the clean, consistent energy that only a true 30A high-drain cell can deliver.
Key Features
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30A Continuous High Drain – Engineered for extreme current demands. Powers turbo/strobe modes without dimming, drives low-ohm coils with authority, and supplies headlamps with instant, sag-free voltage.
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3000mAh Balanced Capacity – Uncommon capacity for a 30A cell. Offers longer runtime in high-drain devices compared to standard 1500-2500mAh cells, letting you enjoy more turbo time or more puffs between charges.
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Flat Top Terminal – Standard flat positive for battery packs, sleds, and flashlights with flat contacts. Check your device: certain single-cell torches require button tops for proper contact.
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Rechargeable & Cost-Effective – ≥500 charge/discharge cycles, replacing hundreds of disposable alkalines. Zero memory effect—recharge anytime without degrading the cell.
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Unprotected Cell – Expert Use Required – These are bare cells without a PCB. A dedicated Li-ion smart charger and a device with over-discharge protection (2.5V cut-off) are mandatory. Never short circuit, over-discharge, or leave charging unattended.
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Low Internal Resistance – Built for high efficiency and less heat generation under heavy loads. Typical internal resistance ≤15 mΩ ensures stable performance.
Parameters
| Specification | Value |
|---|---|
| Model | 18650 |
| Chemistry | Li-ion (NMC/NCA High Drain) |
| Nominal Voltage | 3.7 V |
| Charging Voltage | 4.2 V ±0.05 V |
| Discharge Cut-off | 2.5 V |
| Rated Capacity | 3000 mAh (at 0.2C, 600mA) |
| Max Continuous Discharge | 30 A |
| Max Pulse Discharge | 45 A (<1 sec) |
| Positive Terminal | Flat Top |
| Protection Circuit | None (unprotected) |
| Cycle Life | ≥500 cycles to 80% capacity |
| Internal Resistance | ≤15 mΩ |
| Dimensions | (18.3±0.2) x (65.0±0.2) mm |
| Weight | ~48 g per cell |
Applications
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Turbo Flashlights & Throwers – Ideal for high-lumen EDC torches, tactical/searchlights, and multi-emitter customs that demand 20A-30A to sustain turbo without step-down.
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High-Performance Headlamps – Powers professional caving, industrial, and search-and-rescue headlamps with high-burst modes.
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RC Toys & Power Tool Packs – Excellent for building high-drain 2S/3S packs for RC cars, trucks, drones, and cordless tools.
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Portable High-Power Fans – Runs beefy camping fans or misting fans that draw 5A-15A.
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DIY Electronics & Backup Power – Suitable for high-current robotics, server power backups, and custom power banks with fast-charge modules.
FAQ
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Q: Is a 3000mAh 30A battery real? Many high-drain cells have lower capacity.
A: Yes, advancements in lithium-ion chemistry allow some cells to reach 3000mAh at 30A. Under a continuous 30A load the usable capacity will be slightly lower—this is normal. At moderate current (e.g., 5-10A) you’ll enjoy the full 3000mAh. -
Q: Are these batteries protected?
A: No, they are unprotected flat top cells. You must use a smart Li-ion charger and a device that cuts off at 2.5V to prevent over-discharge. If your device lacks low-voltage protection, install an external protection board. -
Q: Flat top vs. button top – will they fit my flashlight?
A: Flat tops work in most multi-cell lights and flat-contact devices. Some single-cell flashlights with physical reverse-polarity protection require button tops. Use magnet spacers only with extreme caution and proper insulation to avoid short circuits. -
Q: What charger should I use?
A: A quality Li-ion smart charger for 3.7V 18650 cells (e.g., XTAR, Nitecore, Vapecell). Never use NiMH/NiCd chargers or USB direct-charge cables without proper regulation. -
Q: How should I store them?
A: Store at around 3.7V in a cool, dry environment. Recharge every 6 months. Always keep in plastic cases—never loose in pockets with keys or coins. -
Q: Can I use these batteries for solar lights or cameras?
A: They will work but are overkill for low-drain devices. The high discharge capability is wasted; a cheaper high-capacity 10A cell would be more cost-effective for solar lights. Cameras rarely use 18650—check your device first.
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
I build high-performance flashlights and these are my new go-to cells. The 30A rating ensures no bottlenecking. Flat tops fit my Zebralight and Emisar.
My Lupine headlamp demands high current. These 30A cells deliver without tripping protection. The runtime on medium is amazing thanks to 3000mAh.
My desk fan on high pulls 15A continuously. These 30A batteries stay lukewarm after an hour. The 3000mAh capacity is an added bonus. Sunpower is legit.
I replaced my old 15A cells with these and my turbo flashlight became a beast. The flat top makes series connections easy. They arrived well balanced.
Often you trade capacity for amperage, but these do 3000mAh AND 30A. My high-performance headlamp enjoys long runtimes with turbo bursts on demand. Incredible.
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.