Sunpower 2-Pack 3000mAh 30A Flat Top Rechargeable Li-ion Batteries – 3.7V High Drain for Turbo Flashlights, Headlamps & Desk Fans
Description
Description
Experience the best of both worlds with the Sunpower 2-pack 18650 3000mAh 30A flat top batteries. Engineered for users who refuse to choose between high discharge and long runtime, these high-drain lithium-ion cells deliver a true 30A continuous output while retaining a generous 3000mAh capacity. Whether you’re pushing a turbo flashlight to its limits, driving a sub-ohm build, or relying on a headlamp for an all-night adventure, these batteries provide sag-free voltage and lasting stamina. The flat top design ensures a perfect fit in multi-cell packs and flat-contact devices. Without a protection circuit, they demand responsible handling: always pair with a smart Li-ion charger and a device or circuit that enforces low-voltage cut-off. Recharge over 500 times, leave disposable cells behind, and power your most demanding gear with Sunpower.
Key Features
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30A Continuous High Drain – Delivers a genuine 30A constant current with minimal voltage sag, keeping turbo/strobe modes blindingly bright and your builds hitting hard.
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Generous 3000mAh Capacity – Remarkable capacity for a high-discharge cell, offering extended runtime in flashlights, headlamps, and personal fans without compromising power delivery.
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Flat Top Terminal – Standard flat positive for battery packs, multi-cell sleds, and flat-contact equipment. Check device compatibility: some single-cell flashlights require button tops.
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Rechargeable & Cost-Effective – Rated for ≥500 cycles, replacing hundreds of disposables. Zero memory effect – top up anytime without harming lifespan.
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Unprotected Cell – For Knowledgeable Users – These are bare cells without a PCB. You must use a Li-ion smart charger and a device with built-in over-discharge protection (or add a protection board). Never over-discharge below 2.5V, and never leave charging unattended.
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Optimized Form Factor – Standard 18650 dimensions (18.3 mm x 65.0 mm). Lightweight at approximately 48 g each, suitable for portable and compact builds.
Parameters
| Specification | Value |
|---|---|
| Brand | Sunpower |
| Model | 18650 |
| Chemistry | Li-ion (High Drain) |
| Nominal Voltage | 3.7 V |
| Charging Voltage | 4.2 V ±0.05 V |
| Discharge Cut-off Voltage | 2.5 V |
| Rated Capacity | 3000 mAh (0.2C discharge) |
| Max Continuous Discharge | 30 A |
| Max Pulse Discharge | 45 A (<1 second) |
| Positive Terminal | Flat Top |
| Protection Circuit | None (unprotected) |
| Cycle Life | ≥500 cycles to 80% capacity |
| Internal Resistance | ≤15 mΩ (typical) |
| Dimensions | (18.3±0.2) mm x (65.0±0.2) mm |
| Weight | ~48 g per cell |
Applications
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Turbo Flashlights & Searchlights – Built for high-lumen EDC torches, tactical lights, and multi-emitter throwers that demand 30A to sustain full turbo mode without stepping down.
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High-Output Headlamps – Powers caving, industrial, and professional headlamps that need high brightness for extended periods.
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Desk Fans & Portable Fans – Enjoy longer runtime on personal desk fans or clip-on fans, thanks to the 3000mAh capacity, with instant motor starts every time.
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RC Toys & Power Tool Packs – Perfect for building high-drain 2S/3S packs for RC vehicles, drones, and cordless tools that require both amperage and capacity.
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Backup & DIY Electronics – Reliable cells for solar lights, IoT devices, robotics, and high-current Arduino projects.
FAQ
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Q: Can a 3000mAh 30A cell really deliver both high capacity and high current?
A: Yes, these Sunpower cells use an advanced chemical formulation that balances energy density with high-rate capability. The 3000mAh capacity is measured at a 0.2C discharge; under a continuous 30A load, the usable capacity will be slightly lower, which is normal for all high-drain cells. -
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 does not have low-voltage protection, install an external protection board. -
Q: Will a 30A battery damage my desk fan or headlamp?
A: Absolutely not. Devices draw only the current they need. The 30A rating is the maximum safe output, making these batteries perfectly safe and long-lasting in low-drain electronics. -
Q: Flat top vs. button top – will these fit my flashlight?
A: Flat tops fit most multi-cell flashlights, battery carriers, and flat-contact devices. If your flashlight uses a physical reverse-polarity ring that requires a button top, flat tops may not reach the positive contact. Use magnet spacers only with extreme caution and proper insulation. -
Q: How should I store these cells?
A: Store at about 3.7V in a cool, dry location. Recharge every 6 months. Always carry in non-conductive cases—never loose with keys or coins. -
Q: What charger should I use?
A: A dedicated Li-ion charger for 3.7V 18650 batteries (e.g., Nitecore, XTAR). Never use a NiMH/NiCd charger.
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 Sunpower cells are no joke. 30A continuous with 3000mAh is a rare combo. My desk fan's high speed mode roars. Flat top works in all my 18650 sleds.
At this price point, these rival my Molicel P28A. True 30A with 3000mAh. My high-performance headlamp sustains turbo like never before. I'm buying more.
Bought the 3000mAh 30A for my high-drain lantern. The output is consistent, and flat top design fits the holder. Charging is straightforward. Very satisfied.
I trust the 30A rating on these because they stay cool. My headlamp on turbo draws 20A and the battery barely warms. Sunpower is becoming my favorite.
My Noctigon KR4 on turbo needs serious current. These Sunpower 30A batteries deliver with minimal heat. The flat top is standard and fits multiple lights.
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.