Delipow 10440 3.7V 320mAh Li-ion Rechargeable Battery – Flat Top, Low Internal Resistance & 1500 Cycles for Mini Flashlights (2-Pack)
Description
Product Overview
The Delipow 10440 is a high-performance 3.7V 320mAh rechargeable lithium-ion battery, specially engineered for mini flashlights and other compact high-voltage electronic devices. Although it shares the exact same physical size as a standard AAA battery, it delivers powerful 3.7V output, low internal resistance, and an exceptional 1500-cycle lifespan – making it the ideal power solution for devices that require specialty batteries.
Key Features
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Designed for Mini Flashlights
The 10440 format (10mm × 44mm) is purpose-built for compact EDC flashlights, keychain lights, and other specialized precision devices. -
High 3.7V Output
Delivers strong, consistent 3.7V power with low internal resistance, ensuring your mini flashlights shine at maximum brightness and performance. -
1500 Ultra-Long Charge Cycles
Supports up to 1500 recharge cycles – far exceeding standard lithium batteries. One battery replaces hundreds of disposable cells, saving money and reducing environmental waste. -
Low Self-Discharge Technology
Retains power over long storage periods, so your batteries are always ready when you need them. -
Flat Top Design
Features a standard flat positive terminal. Please confirm your device requires a flat top (not a button top) before purchasing. -
Low Resistance & High Discharge
Delivers high discharge performance with minimal resistance, ensuring efficient energy transfer without power loss. -
Quality Assurance & Safe Materials
Manufactured with mercury-free and cadmium-free materials, complying with GB31241-2022 national safety standards for environmentally friendly and reliable daily use. -
No Memory Effect
Allows for convenient recharging at any time without reducing overall battery capacity or lifespan.
Product Specifications
| Parameter | Details |
|---|---|
| Brand | Delipow |
| Model | 10440 Rechargeable Li-ion Battery |
| Capacity | 320mAh |
| Nominal Voltage | 3.7V |
| Top Type | Flat Top |
| Discharge Rate | 3C |
| Net Weight | 9g |
| Cycle Life | Up to 1500 times |
| Compliance Standard | GB31241-2022 |
| Dimensions | 10mm (Diameter) × 44mm (Height) |
| Pack Quantity | 2-Pack |
Applications
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Mini Tactical Flashlights – The ideal power source for small, high-lumen EDC flashlights and keychain lights.
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Specialized Laser Pointers & Aimers – Provides stable 3.7V voltage for compact laser aiming devices and pointers.
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Precision Remote Control Transmitters – Powers small transmitters and handheld controllers for hobbyist devices.
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Portable Medical Devices – Suitable for compact digital blood pressure monitors and other specific portable medical instruments.
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Small Sensor & Alarm Systems – Reliable backup power for miniaturized security sensors and alarm transmitters.
Frequently Asked Questions (FAQ)
Q1: Can I use this 10440 battery as a replacement for a standard AAA battery?
A1: NO – Please exercise extreme caution! While the 10440 shares the exact same physical dimensions as a standard AAA (10mm × 44mm), it operates at 3.7V. Using a 3.7V battery in a device designed for 1.2V or 1.5V (such as a standard remote control or clock) will instantly damage or destroy the device. It is only compatible with devices explicitly specified for 10440 or 3.7V power.
Q2: What is the difference between Flat Top and Button Top?
A2: A Flat Top battery has a flat positive terminal, while a Button Top has a protruding nub. Please check your device's battery compartment carefully. If your device specifically requires a protruding positive contact, you need a Button Top version – this product is Flat Top.
Q3: How long does it take to fully charge a 320mAh battery?
A3: Charging time depends on your specific Li-ion charger. Using a standard dedicated 10440/3.7V charger, it typically takes approximately 1 to 2 hours.
Q4: Is it safe to use this battery in my expensive mini flashlight?
A4: Absolutely. These batteries are manufactured with strict quality control and meet the GB31241-2022 national safety standard. They are mercury-free and cadmium-free, ensuring safe and reliable use.
Q5: What kind of charger should I use for this battery?
A5: You must use a charger specifically designed to charge 3.7V lithium-ion batteries (such as a 10440 or 14500 charger). Do not attempt to charge it in a standard AA/AAA Ni-MH charger, as it will not cut off at the correct voltage and is extremely dangerous.
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
I have about 100 cycles on these batteries. They still test at over 300mAh. Good capacity retention.
My order arrived within 3 days. The batteries were in perfect condition and properly stored.
Even in my high-drain mini flashlight, these 10440s stay cool. The low IR helps with thermal management.
My laser pointer runs on these 10440 cells. The consistent voltage output keeps the laser bright and stable.
These flat top 10440s fit my mini flashlight and laser pointer without any connection issues. The positive terminal is well formed.
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.