Description
Shipping and Returns
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

Free Shipping on Orders Over $65
Unleash raw power with the LiitoKala Lii-50A 26650 5000mAh High-Drain Li-ion Battery. Engineered for the most demanding devices, this massive 26650 power cell delivers an astonishing 25A continuous discharge current while boasting an ultra-low 22mΩ internal resistance.
Unlike standard 26650 cells, the Lii-50A maintains stable voltage and prevents overheating even under brutal loads, making it the ultimate choice for high-lumen searchlights, heavy-duty power tools, and high-power electronics. It is also rigorously tested to perform flawlessly in extreme environments, operating from -30℃ to 60℃ with exceptional cold-weather performance.
With flexible packaging from 1 to 10 pieces, you can choose the perfect quantity for your DIY battery pack, your emergency gear, or single battery replacements. Available in both Flat Top and Button Top terminal types to suit your exact device requirements.
( Note: Button Top adds approximately 2mm length. Please check your device's battery bay depth before purchasing.)
Massive 5000mAh True Capacity: High energy density provides exceptionally long runtimes for large-scale devices.
25A High-Drain Continuous Discharge: Delivers a massive 25A current with an ultra-low 22mΩ internal resistance, ensuring zero voltage sag under heavy loads.
Extreme Climate Performance: Rated for -30℃ to 60℃. It retains 70% of its capacity even in freezing -10℃ temperatures, making it perfect for outdoor winter expeditions.
600+ Long Cycle Life: Manufactured with premium materials to withstand over 600 charge/discharge cycles while retaining over 80% of its initial capacity.
Flexible 1 to 10-Pack Options: Available as single units or in bulk packs for DIY projects, custom battery banks, or individual replacements.
High Safety Standards: Passed rigorous testing including short circuits, heavy impact, drops, crush, vibration, and thermal shock tests to ensure complete peace of mind.
Brand: LiitoKala
Model: Lii-50A
Battery Size: 26650
Capacity: 5000mAh
Nominal Voltage: 3.6V / 3.7V
Charge Cut-off Voltage: 4.2V
Discharge Cut-off Voltage: 2.5V
Max Continuous Discharge Current: 25A
Internal Resistance: ≤22mΩ
Cycle Life: 600+ cycles (Capacity retention ≥80%)
Chemistry: Li-ion
Terminal Type: Flat Top / Button Top (Select based on device)
Dimensions: 26.3mm (Dia) × 65.2mm (Height)
Weight: Approx. 98g
Package Options: 1, 2, 3, 4, 5, 6, 10 Pieces
High-Intensity Lighting: Heavy-duty searchlights, super-bright headlamps, and high-lumen tactical flashlights.
Power Tools & Robotics: Reliable high-current power for torque motors, electric tools, and demanding DIY projects.
Extreme Outdoor Gear: High-performance energy for camping gear, survival equipment, and winter expeditions.
DIY Battery Packs: The perfect building block for custom 3.6V/7.2V/10.8V power stations and battery banks.
Professional Equipment: For electronic devices that require stable, large-capacity power sources.
Q1: What is the difference between Flat Top and Button Top?
A1: Flat Top cells have a completely flat positive terminal. They are typically used for spot-welding into custom packs or for devices with extremely tight springs. Button Top cells have a small protruding button on the positive end, designed for standard spring-loaded flashlights and vape mods.
Important Note: Button Top adds approximately ~2mm of length. Please measure your device's battery bay to ensure it fits.
Q2: Are these batteries genuine LiitoKala cells?
A2: Yes, these are 100% genuine LiitoKala Lii-50A cells, directly from the original manufacturer. They feature true 5000mAh capacity and a stable 25A continuous discharge.
Q3: Can I use these batteries in extreme cold or heat?
A3: Absolutely! The Lii-50A is engineered for extreme environments, functioning stably from -30℃ to 60℃. Even at -10℃, it retains up to 70% of its capacity, making it a top choice for high-latitude outdoor use.
Q4: How many batteries should I buy?
A4: It depends on your needs. If you are replacing cells in a single flashlight, 1 to 2 will suffice. If you are building a custom battery pack or stocking up for emergency gear, we highly recommend our 6-pack or 10-pack options for the best value.
Q5: How do I safely charge these batteries?
A5: Use a high-quality 3.6V/3.7V Li-ion charger that supports 26650 cells, such as the LiitoKala Lii-600, Lii-500S, or other high-end smart chargers. Never use a charger designed for NiMH or 3.2V LiFePO4 batteries.
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 methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Security

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.
Top Brands
Samsung LG Panasonic Molicel EVE
Full Size Range
From 10440 to 4680
B2B Experts
Bulk Discounts Global Logistics
Genuine & Safe
A‑grade cells & Certified
