4-Pack EVE 58E 21700 5800mAh 16.8A Flat Top Battery – Ultra High Capacity for Solar Storage, Flashlights, Power Banks & Light-Medium Tools
Description
Description
Maximize runtime like never before with the EVE 58E, a 21700 cell that pushes capacity to an extraordinary 5800mAh. This 4-pack delivers a steady 16.8A continuous discharge, making it the ultimate power source for solar energy storage, high-output LED flashlights, portable power banks, and light-to-medium cordless tools. The flat top design fits all standard 21700 spring-contact devices and simplifies spot-welding for custom battery packs. With excellent cycle life and EVE’s consistent quality, the 58E keeps your devices running longer between charges — perfect for off-grid systems, outdoor adventures, and everyday reliability.
Key Features
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5800mAh Ultra-High Capacity – Among the highest capacity 21700 cells available. Ideal for applications where maximum runtime between charges is the top priority.
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16.8A Continuous Discharge – Provides stable, reliable power for medium-drain devices. Handles fast-charge power banks, bright flashlight modes, and light power tools with ease.
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Flat Top Design – Universally compatible with 21700 spring-contact chargers, battery holders, and flashlights. The flat positive terminal is perfect for spot-welding nickel strips in DIY packs.
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Long Cycle Life – Retains ≥80% capacity after 500 charge/discharge cycles under recommended conditions, reducing long-term replacement costs.
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4-Pack Convenience – Ideal for building a compact solar battery bank, refreshing your flashlight collection, or assembling a high-capacity power bank.
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EVE A-Grade Quality – Rigorously tested for consistent performance, low self-discharge, and reliable operation trusted by professionals worldwide.
Parameters
| Parameter | Specification |
|---|---|
| Model | EVE INR21700-58E |
| Typical Capacity | 5800 mAh (0.2C discharge to 2.5V) |
| Minimum Capacity | ~5700 mAh |
| Nominal Voltage | 3.6 V (typical operating 3.7 V) |
| Max Continuous Discharge | 16.8 A (cell temperature ≤ 80°C) |
| Max Pulse Discharge | Up to 20–25 A (short burst, monitor temperature) |
| Discharge Cut-off Voltage | 2.5 V (do not over-discharge) |
| Standard Charge | CC-CV, 0.5C (2900 mA) to 4.2 V, cut-off 50 mA |
| Recommended Charge Current | 0.5C (2900 mA) for best balance of speed and longevity |
| Internal Resistance | ≤ 25 mΩ (AC 1 kHz) |
| Cycle Life | ≥ 500 cycles (to 80% capacity, 0.5C charge / 1C discharge) |
| Operating Temperature (Discharge) | -20°C to 60°C |
| Top Type | Flat Top |
| Dimensions | Approx. 21.2 mm diameter × 70.3 mm length |
| Weight (single cell) | Approx. 69 g |
| Package Includes | 4 × EVE 58E 21700 cells in protective packaging |
Applications
Recommended For
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Solar Energy Storage & Street Lights: Low-current, long-duration operation. A single cell can power a bright LED fixture through the night and into overcast days.
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High-Output 21700 Flashlights: Medium to high modes (1–10A) benefit enormously from the 5800mAh capacity for exceptionally long illumination.
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Portable Power Banks: Build a compact 11,600mAh fast-charging power bank with just two cells. The 16.8A rating easily supports 65W USB-C PD output.
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Light-to-Medium Cordless Tools: Drills, impact drivers, and small electric screwdrivers when used in properly built battery packs with a BMS.
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Wireless Security Cameras & Smart Doorbells: Ultra-low standby consumption with sufficient peak current for motion-activated recording.
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Portable Medical Devices: Infusion pumps, patient monitors, and diagnostic equipment requiring uninterrupted power for extended periods.
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Camping Lanterns & Portable Fans: Keep cool and illuminated on multi-day outdoor adventures without worrying about recharging.
Not Recommended For
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Heavy-Duty Power Tools: Angle grinders, circular saws, and rotary hammers demand 20A+ continuous. Choose a high-drain cell like the EVE 40PL (60A) instead.
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High-Power Vaping (Sub-Ohm / Mechanical Mods): These require 20–35A. The 58E is a capacity cell, not a high-drain cell.
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Single-Cell E-Bike Applications: One cell cannot provide sufficient voltage or current. Always build a proper multi-cell pack with a BMS.
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Devices Requiring Button Tops: These are flat top cells. Use a magnetic spacer if needed, ensuring it does not cause short circuits.
FAQ
Q: Can I use this battery in my power tool?
A: Yes, but only for light-to-medium duty tools such as small drills and electric screwdrivers that draw less than 16A. Heavy-duty tools like angle grinders and circular saws require much higher currents and should use dedicated high-drain cells like the EVE 40PL.
Q: Is this battery suitable for e-bikes?
A: Only when used in a multi-cell parallel configuration. A single 58E cannot deliver enough current for an e-bike motor. You must build a proper series/parallel pack (e.g., 10S3P) with a BMS so that each cell’s load stays within the 16.8A limit.
Q: How does the 58E compare to the Samsung 50G or LG M58T?
A: All are ultra-high capacity 21700 cells. The 58E offers 5800mAh with a 16.8A continuous rating, giving it a slight capacity edge over the Samsung 50G (5000mAh/9.8A) and similar capacity to the LG M58T (5800mAh/12.5A) but with higher current capability than both, making it more versatile for medium-drain applications.
Q: Is this battery protected?
A: No, the EVE 58E is an unprotected flat top cell. Most single-cell devices have built-in protection, but for multi-cell packs, you must install an external BMS rated for at least 20A.
Q: How should I store these cells long-term?
A: Store at 3.6–3.7V (approximately 40–50% charge) in a cool, dry place using non-conductive battery cases. Avoid storing fully charged or fully discharged for extended periods.
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.