NITECORE NL1836 18650 Battery - 3600mAh 3.6V High Capacity Rechargeable Li-ion Cell with Built-in Protection Board & 500 Cycle Life for Flashlights, Outdoor Gear & Everyday Electronics (4A Discharge)
Description
【Product Description】
The Perfect All-Rounder for Your Power Needs. The NITECORE NL1836 is a premium 18650 rechargeable Li-ion battery that delivers an outstanding 3600mAh capacity with a reliable 4A continuous discharge—the ideal balance for high-lumen flashlights, everyday electronics, and outdoor gear.
Unlike ordinary unprotected cells, the NL1836 features comprehensive safety architecture. Inside the positive terminal lies a custom high-performance protection circuit board using premium MOSFETs to prevent overcharging, over-discharging, and short circuits. Its pressure safety valve automatically releases internal pressure to prevent swelling or explosions.
Encased in a durable fully metal outer shell with stainless steel nickel-plated protective plates on both ends, the NL1836 offers unmatched impact resistance and corrosion protection. With a lifespan of over 500 charge cycles and 100% mercury/lead/cadmium-free materials, the NITECORE NL1836 is a safe, reliable, and eco-friendly upgrade for your devices.
(Note: The NITECORE NL1836 is the standard high-capacity version with a reliable 4A discharge. If you require extreme high-drain power, please refer to our "HP" model with 8A discharge.)
【Key Features】
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Massive 3600mAh Capacity: Delivers extended runtimes for your most demanding devices, with a rated energy of 12.96Wh.
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Reliable 4A Continuous Discharge: Provides stable and safe power for a wide range of high-lumen flashlights, electronic toys, and outdoor devices without voltage sag.
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Built-in High-Performance Protection Board: Features a premium multi-layer protection circuit with high-quality MOSFETs, effectively guarding against overcharge, over-discharge, and short circuits.
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Pressure Safety Valve: A built-in pressure relief mechanism prevents internal pressure build-up, protecting you from potential swelling or explosion hazards.
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Durable Metal Shell & Stainless Steel Plates: The fully metal outer housing and nickel-plated stainless steel plates at both ends resist impacts, oxidation, and corrosion.
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Green & Eco-Friendly: Completely free of mercury, lead, and cadmium, making it a safe and environmentally conscious choice.
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Reliable 500+ Cycle Life: Withstand over 500 charge/discharge cycles, providing long-term value and lowering your overall battery replacement costs.
【Parameters & Specifications】
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Brand: NITECORE
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Model: NL1836
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Battery Size: 18650
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Nominal Capacity: 3600mAh
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Nominal Voltage: 3.6V
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Rated Energy: 12.96Wh
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Max Continuous Discharge Current: 4A
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Charge Cut-off Voltage: 4.2V
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Cycle Life: 500+ cycles
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Terminal Type: Button Top (with built-in protection board)
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Dimensions: 18.6mm (Dia) × 69.8mm (Height) ± 0.3mm
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Weight: Approx. 49g
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Warranty: 12-Month Free Warranty
【Applications】
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Outdoor & Camping: Powers high-lumen flashlights, camping lanterns, and survival gear.
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Everyday Electronics: Reliable power for portable radios, smart toys, and handheld devices.
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Emergency Preparedness: Essential backup power source for emergency lights and weather radios.
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DIY Projects: A reliable protected cell for custom battery packs and electronics.
【Frequently Asked Questions (FAQ)】
Q1: What is the difference between the NL1836 and the NL1836HP?
A1: The NL1836 is the standard high-capacity version with a reliable 4A discharge, perfect for most everyday electronics. The NL1836HP is the high-drain version with an 8A discharge, specifically designed for extreme high-power devices like heavy-duty searchlights.
Q2: Is this battery safe to use?
A2: Absolutely. The NL1836 features a built-in high-performance protection board, a pressure safety valve, and a fully metal outer shell. It is specifically engineered to prevent overcharging, over-discharging, short circuits, and swelling.
Q3: Can I use this battery in my high-lumen flashlight?
A3: Yes. It delivers a stable 4A output, which is enough to power most high-lumen tactical flashlights and outdoor gear. If your device requires extreme high-drain power, please consider the 8A "HP" model.
Q4: Why is it slightly longer than a standard unprotected 18650?
A4: The NL1836 includes a built-in protection circuit board at the positive end, adding approximately 4mm of length (69.8mm vs 65.2mm). This is by design to ensure maximum safety. Please ensure your device can accommodate a protected cell before purchase.
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.
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

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.
