Tesla Model 3 NCR21700 5000mAh 5C 3.7V High-Capacity Li-ion Battery – 25A Discharge, 17.8Wh Energy for High-Capacity Power Stations & E-Bikes (6-Pack)
Description
Product Description:
The Tesla Model 3 NCR21700 is a premium-grade 21700 lithium-ion battery cell engineered for maximum energy density and reliable high-discharge performance. Derived from the same technology platform that powers Tesla Model 3 vehicles, this cell delivers a massive 5000mAh (5.0Ah) capacity and a stable 5C (25A) continuous discharge current. With an impressive 17.8Wh of total energy, it is one of the highest-capacity 21700 cells available on the market.
Built with advanced NCR (Nickel Cobalt Aluminum) chemistry, this battery offers ultra-low internal resistance, superior thermal stability, and consistent performance under sustained loads. Its high energy density makes it the ideal core cell for building high-capacity portable power stations, solar energy storage systems, and electric bicycle conversions. With 6 cells included, you have a solid foundation for assembling 12V/24V battery packs or maintaining a large power reserve for your most demanding devices.
Key Features:
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Tesla Model 3 NCR21700 High-Capacity Cell: Premium-grade 21700 Li-ion battery from the Tesla Model 3 technology platform.
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5000mAh (5.0Ah) Ultra-High Capacity: Provides 17.8Wh of energy for extended runtime, significantly reducing the need for frequent recharging.
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5C (25A) Stable Discharge: Delivers a steady 25A continuous discharge current, suitable for high-power applications.
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17.8Wh Total Energy: One of the highest energy capacities available in the 21700 form factor.
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Advanced NCR Chemistry: Low internal resistance, excellent thermal stability, and reliable performance under load.
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Professional Grade Quality: Manufactured to Tesla's rigorous automotive-grade standards for reliability and safety.
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Versatile Applications: Perfect for high-capacity power stations, solar storage, e-bikes, and energy-intensive DIY projects.
Product Parameters (Based on Cell Markings & Specs):
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Application Source: Tesla Model 3 Technology Platform
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Model: NCR21700
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Size: 21700
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Capacity: 5000mAh / 5.0Ah
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Energy: 17.8Wh
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Nominal Voltage: 3.7V
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Discharge Rate: 5C
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Max Continuous Discharge Current: 25A
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Chemistry: NCR (Lithium Nickel Cobalt Aluminum Oxide)
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Dimensions: 21mm (Diameter) x 70mm (Height)
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Pack Quantity: 6-Pack
Applications:
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High-Capacity Portable Power Stations: The ideal core cell for building large-capacity outdoor camping power stations and emergency backup power.
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Solar Energy Storage Systems: Reliable, high-capacity energy storage for off-grid solar setups and home backup systems.
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Electric Bicycle Conversions: Delivers long-lasting, stable power for retrofitting e-bikes and electric scooters.
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High-Performance Robotics & Drones: Provides sustained power for large-scale robotics and heavy-lift drones.
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High-Intensity Outdoor Lighting: Powers high-lumen searchlights and tactical flashlights for extended outdoor operations.
Frequently Asked Questions (FAQ):
Q1: What is the discharge current of this battery?
A1: This Tesla NCR21700 cell is rated for a 5C discharge rate. With a 5000mAh capacity, this translates to a stable 25A continuous discharge current.
Q2: What is the energy capacity of this battery?
A2: This battery provides a massive 5000mAh (5.0Ah) capacity, which translates to 17.8Wh of total energy. This is one of the highest energy capacities available in a 21700 form factor, making it ideal for long-run applications.
Q3: Is this battery compatible with standard 21700 chargers?
A3: Yes. This battery uses the standard 21700 cylindrical form factor. You must use a high-quality charger specifically designed for 3.6V/3.7V Li-ion batteries with a 4.2V cut-off voltage.
Q4: Can I use this battery to build a 12V battery pack?
A4: Yes. For a standard 12V system, you would connect 3 cells in series (3S) to achieve 11.1V nominal. Always use a BMS (Battery Management System) when building custom packs to ensure safety and balance.
Q5: What is the advantage of the NCR chemistry?
A5: NCR (Nickel Cobalt Aluminum) chemistry is known for its high energy density and excellent thermal stability. This allows the battery to pack maximum energy into a compact size while maintaining reliable performance under load.
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
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Security

My convoy 21700 light runs for weeks on one cell. 5000mAh with 25A capability is perfect.
These NCR21700 cells represent the pinnacle of 21700 technology. Unmatched capacity and power.
Even at continuous 5C discharge, cells stay within safe temperature range. Tesla thermal design.
5000mAh with 25A discharge. Built a 48V 15Ah e-bike pack. Range is amazing. Tesla quality in DIY format.
These are genuine Panasonic-made Tesla cells. Not some shady rewrap. Performance proves authenticity.
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.
