BAK 26650HC2E 3.7V 5000mAh 25A High-Drain Li-ion Battery – 5C Discharge, 18Wh Energy for High-Power Flashlights & Power Tools (2pcs)
Description
Product Description:
The BAK 26650HC2E is a premium-grade 26650 lithium-ion battery engineered for high-capacity, high-drain power applications. This 2pcs bundle delivers a massive 5000mAh (18.0Wh) true capacity and a powerful 25A (5C) continuous discharge current, providing sustained, high-current power for the most demanding devices such as high-lumen tactical flashlights, heavy-duty cordless power tools, and high-capacity portable energy systems.
Product Description:
The BAK 26650HC2E is a premium-grade 26650 lithium-ion battery engineered for high-capacity, high-drain power applications. This 2pcs bundle delivers a massive 5000mAh (18.0Wh) true capacity and a powerful 25A (5C) continuous discharge current, providing sustained, high-current power for the most demanding devices such as high-lumen tactical flashlights, heavy-duty cordless power tools, and high-capacity portable energy systems.
Manufactured by BAK, a global leader in battery technology, this cell offers excellent energy density, low internal resistance, and reliable performance under sustained heavy loads. It represents the perfect balance between ultra-high capacity and powerful discharge performance.
Key Features:
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BAK 26650HC2E Premium Power Cell: High-capacity, high-drain 26650 Li-ion battery from the trusted brand BAK.
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5000mAh (18.0Wh) High Capacity: Provides massive energy for extended runtimes.
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25A (5C) High Discharge Rate: Delivers a powerful 25A continuous discharge current for demanding high-power applications.
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Excellent Energy Density: Packs 18.0Wh of energy into a compact 26650 form factor.
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Proven Battery Technology: Manufactured by BAK with advanced Li-ion chemistry for consistent and reliable performance.
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Standard 26650 Size: Perfectly fits standard 26650 battery compartments (26mm x 65mm).
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Versatile Applications: Ideal for high-power flashlights, heavy-duty power tools, and DIY battery packs.
Technical Parameters (Per Cell)
| Parameter | Specification |
|---|---|
| Brand / Model | BAK 26650HC2E |
| Chemistry | Li-ion (NMC) |
| Nominal Voltage | 3.7V |
| Typical Capacity | 5000mAh / 5.0Ah |
| Minimum Capacity | 4900mAh |
| Nominal Energy | 18.5Wh |
| Max. Continuous Discharge | 25A |
| Max. Pulse Discharge (<10s) | 35A |
| Standard Charge Current | 2.5A (0.5C) |
| Max. Charge Current | 5.0A (1C) |
| Charge Cut-off Voltage | 4.20V ±0.05V (CC/CV) |
| Discharge Cut-off Voltage | 2.5V |
| Internal Resistance (AC 1kHz) | ≤15mΩ (typical) |
| Cycle Life (@ 1C CD, 100% DoD) | ≥300 cycles to 70% residual capacity |
| Cell Diameter | 26.2 ± 0.3 mm |
| Cell Height (Flat Top) | 65.3 ± 0.3 mm |
| Weight | ~95g |
| Top Type | Flat Top |
| Protection | None (PTC thermistor & safety vent) |
| Charge Temperature | 0°C ~ 45°C |
| Discharge Temperature | -20°C ~ 60°C |
| Storage Temperature | -20°C ~ 35°C (recommend +15°C ~ +25°C) |
| Certifications | UN38.3, MSDS, IEC62133 |
Applications:
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High-Lumen Tactical Flashlights: Powers the brightest flashlights and searchlights with sustained 25A output.
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Heavy-Duty Cordless Power Tools: Provides reliable high-current power for heavy-duty drills, saws, and impact drivers.
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High-Capacity Portable Power Stations: A core cell for building professional-grade portable power stations and energy storage systems.
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Outdoor & Camping Gear: Long-lasting power for headlamps, camping lanterns, and portable outdoor radios.
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DIY Battery Pack Assembly: Ideal for building custom 12V/24V high-capacity battery packs.
Frequently Asked Questions (FAQ):
Q1: What is the discharge current of this battery?
A1: This BAK 26650HC2E is rated for a 25A continuous discharge current, providing high power for high-demand applications such as heavy-duty power tools and high-lumen flashlights.
Q2: What is the energy capacity of this battery?
A2: This battery delivers a massive 5000mAh capacity, which translates to 18.0Wh of total energy, providing significantly longer runtimes than standard 4500mAh cells.
Q3: Is this a genuine BAK battery?
A3: Yes. The "26650HC2E" marking and BAK's signature teal wrapper are authentic indicators of genuine BAK cells.
Q4: What kind of charger should I use for this battery?
A4: You must use a charger specifically designed for 3.6V/3.7V Li-ion batteries with a 4.2V cut-off voltage. Do not use a standard AA/AAA Ni-MH charger.
Q5: Can I use this battery in series?
A5: Yes, you can use these batteries in series to build custom battery packs. However, always ensure your BMS (Battery Management System) is properly rated for the 25A current draw.
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

The BAK HC2E is one of the best 26650 high-drain cells on the market right now.
These BAK cells perform exactly as the specs say.
Having two is perfect. I can rotate them while I work.
These are great for everything from flashlights to power tools. I'm very satisfied.
The 25A discharge provides plenty of power for my RC car's motor. The run time is great, too.
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.
