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Experience Next-Level Power with the NITECORE NL1840 Series. The NITECORE NL1840 is a premium 18650 lithium-ion battery that delivers an exceptional 4000mAh capacity – one of the highest in the 18650 format – and a 14.4Wh rated energy. Both versions are built for extreme durability and feature a professional IPX6 waterproof rating, ensuring they perform flawlessly in rain, snow, and harsh outdoor environments.
This series is available in two distinct versions to perfectly match your device's power requirements:
1. NITECORE NL1840 (Standard Version):
Designed for devices that prioritize maximum runtime over extreme power output.
Ideal for high-lumen flashlights, camping gear, and long-range outdoor equipment.
2. NITECORE NL1840HP (High-Drain Version):
Delivers the same massive 4000mAh capacity while offering a stable 10A continuous discharge current.
Perfect for heavy-duty tactical searchlights, high-output flashlights, and power-hungry devices that demand instantaneous bursts of power.
Both versions feature a built-in high-performance protection board and a pressure safety valve, ensuring you charge and use them safely. With a lifespan of over 500 charge cycles and 100% mercury/lead/cadmium-free, the NITECORE NL1840 series is the perfect, reliable power upgrade for your gear.
( IMPORTANT: Length is 69.8mm. Please check your device's battery bay depth before purchasing!)
NITECORE NL1840 (Standard Version):
Massive 4000mAh Capacity: One of the highest capacities in the 18650 format, providing 14.4Wh of reliable energy for extended runtimes.
Stable Standard Discharge: Provides reliable power for high-lumen flashlights and outdoor gear without excessive voltage sag.
Professional IPX6 Waterproof Rating: Unmatched water resistance for confident use in rain, snow, and extreme outdoor environments.
Built-in High-Performance Protection Board: Features premium MOSFETs to prevent overcharging, over-discharging, and short circuits. The pressure safety valve adds an extra layer of protection.
Durable Metal Shell & Stainless Steel Plates: Fully metal outer housing and nickel-plated stainless steel plates at both ends resist impacts, oxidation, and corrosion.
NITECORE NL1840HP (High-Drain Version):
10A High-Drain Continuous Discharge: Provides a stable 10A output, allowing high-lumen flashlights to maintain peak brightness without voltage sag or overheating.
Massive 4000mAh Capacity with 10A Power: Perfectly balances high capacity and high power, delivering both long runtimes and instantaneous bursts of energy.
IPX6 Waterproof Rating & Built-in Protection: Same rugged construction as the standard version, with maximum safety features.
NITECORE NL1840 / NL1840HP:
Brand: NITECORE
Model: NL1840 / NL1840HP
Battery Size: 18650
Nominal Capacity: 4000mAh
Nominal Voltage: 3.6V
Rated Energy: 14.4Wh
Max Continuous Discharge Current: Standard / 10A (HP Version)
Charge Cut-off Voltage: 4.2V
Cycle Life: 500+ cycles
Terminal Type: Button Top (with built-in protection board)
IPX Rating: IPX6 Waterproof
Dimensions: 18.6mm (Dia) × 69.8mm (Height) ± 0.3mm
Weight: Approx. 50g
Warranty: 12-Month Free Warranty
High-Lumen Flashlights: Powers tactical and everyday carry flashlights.
Outdoor & Camping: Essential power source for camping lanterns, hiking gear, and emergency equipment.
Heavy-Duty Searchlights (HP Version): Perfect for high-intensity searchlights that require 10A bursts of power.
High-Power Electronics: Suitable for power-hungry portable devices and robotics.
Q1: What is the difference between the NL1840 and the NL1840HP?
A1: The NL1840 is the standard version with a stable discharge current, designed for maximum runtime. The NL1840HP is the high-drain version with a 10A continuous discharge, perfect for devices that require extreme bursts of power (like heavy-duty searchlights). Both have the same 4000mAh capacity and IPX6 waterproofing.
Q2: Is this battery safe for my high-lumen flashlight?
A2: Absolutely. Both versions feature a built-in high-performance protection board and a pressure safety valve, ensuring safe and reliable operation even under heavy loads.
Q3: Why is the battery longer than a standard 18650?
A3: Both versions include a built-in protection board at the positive end, adding extra length (69.8mm) to ensure maximum safety. Please carefully measure your device's battery bay depth before purchase to ensure it fits!
Q4: Can I use this battery in wet conditions?
A4: Yes! With its professional IPX6 waterproof rating, it is fully protected against powerful water jets, making it ideal for rainy environments, boating, and other water-related activities.
Q5: Are these batteries safe for the environment?
A5: Yes! They are 100% free of mercury, lead, and cadmium, making them an environmentally friendly choice that aligns with green living standards.
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.
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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.
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