Delipow AA 4440mWh 3.7V USB Type-C Rechargeable Lithium Battery – Built-in Port Fast Charging with 9-Layer Safety for High-Drain Devices (4-Pack)
Description
Product Description:
Charger-Free, Next-Gen Power for AA Devices: Upgrade your gear with the Delipow AA 4440mWh USB Rechargeable Lithium Battery. Featuring a built-in Type-C charging port, this next-generation battery eliminates the need for bulky external chargers. Just plug it into any standard USB source—laptop, power bank, or wall adapter—and power up instantly.
High-Voltage 3.7V Output & Massive 4440mWh Capacity: Unlike traditional 1.2V or 1.5V batteries, this 3.7V lithium-ion battery delivers a significantly higher, stable voltage output, unlocking peak performance for high-drain electronics. With a massive 4440mWh (1200mAh) energy capacity, it provides extended runtime so your devices last longer between charges.
Red-to-Green Smart Indicator & 9-Layer Safety Protection: Stay informed with the intuitive built-in indicator light—Red means active charging, and Green means fully charged. Engineered with an upgraded smart control chip and 9 comprehensive safety protections, including over-current, over-voltage, short-circuit, and over-temperature safeguards, ensuring complete peace of mind during every charge.
Key Features:
-
4-Pack AA USB Rechargeable Lithium Battery: Includes 4 pieces of Delipow AA 4440mWh 3.7V lithium-ion batteries with integrated Type-C charging ports.
-
Built-in Type-C USB Port: No separate charger needed. Plug directly into any Type-C or USB cable connected to a laptop, power bank, car charger, or wall adapter.
-
Massive 4440mWh (1200mAh) Capacity: Delivers exceptional 4440mWh energy for high-drain devices, offering significantly longer runtime than standard batteries.
-
Stable 3.7V High-Voltage Output: Provides superior, consistent 3.7V power delivery, ensuring your advanced devices (like flashes and high-powered mics) operate at optimal performance without fading.
-
Smart Red-to-Green LED Indicator: Built-in intelligent status light shows Red while charging and switches to Green when fully charged—no guesswork needed.
-
Upgraded 9-Layer Smart Control Chip: Features a comprehensive 9-layer protection system: Over-current, Over-voltage, Over-charge, Over-discharge, Short-circuit, Over-temperature, Charging protection, Over-power, and Leakage protection.
-
1.5-Hour Fast Charging: Rapidly recharges from empty to full in just approximately 1.5 hours using a standard 5V 2A USB power source.
-
Eco-Friendly & High Cycle Life: Rechargeable up to hundreds of cycles, effectively replacing hundreds of disposable alkaline batteries, saving you money and reducing waste.
Product Parameters:
-
Brand: Delipow
-
Type: AA 3.7V Li-ion Rechargeable Battery
-
Energy Capacity: 4440mWh (1200mAh)
-
Nominal Voltage: 3.7V
-
Input: DC 5V 2A (via built-in Type-C port)
-
Output: 3.7V
-
Charging Time: Approximately 1.5 hours
-
Indicator Light: Red (Charging) / Green (Fully Charged)
-
Safety Protection: 9-Layer Smart Protection (Over-current, Over-voltage, Over-charge, Over-discharge, Short-circuit, Over-temperature, Charging protection, Over-power, Leakage protection)
-
Dimensions: 14mm (Diameter) x 50mm (Height)
-
Pack Quantity: 4-Pack
Applications:
-
High-Performance Photography & Flashes: The ideal 3.7V power source for high-end camera speedlights, external flash units, and photography trigger systems, ensuring rapid recycle times and consistent burst shooting.
-
Wireless Audio & Microphones: Powers professional wireless microphone systems, portable vocal processors, and active guitar pickups, delivering stable voltage for distortion-free sound.
-
Smart Home & Security Sensors: Reliable backup power for high-drain smart locks, motion sensors, and wireless security cameras.
-
Advanced Hobby & RC Toys: Perfect for high-torque RC cars, advanced robotics, and motorized hobby projects that demand more voltage than standard AA batteries can provide.
-
Portable Medical & Precision Instruments: Powers portable digital blood pressure monitors, glucose meters, and other precision measurement devices requiring consistent, high-energy output.
Frequently Asked Questions (FAQ):
Q1: Is this battery compatible with standard 1.5V AA devices?
A1: No. This is a 3.7V high-voltage lithium battery, not a 1.5V battery. It is designed specifically for high-drain devices that require higher voltage, such as professional camera flashes, high-end wireless microphones, and certain RC hobbies. Please check your device's input voltage requirement before purchasing. It is NOT suitable for low-voltage devices like standard clocks or basic TV remotes.
Q2: What kind of charger do I need for this battery?
A2: You don’t need a separate charger. Each battery features a built-in Type-C port. You can plug it into any standard USB charger (5V 2A), laptop USB port, power bank, or car charger using a standard USB to Type-C cable.
Q3: How long does it take to fully charge the battery?
A3: It is very fast. With a standard 5V 2A USB power source, it takes approximately 1.5 hours to fully charge the 4440mWh capacity. The light will turn from Red to Green once it's done.
Q4: What does the 9-layer protection mean?
A4: It means this battery is equipped with an upgraded smart control chip that actively monitors and protects against 9 potential hazards, including over-current, over-voltage, over-charge, over-discharge, short-circuit, over-temperature, and leakage, ensuring absolute safety.
Q5: Can I use this battery in a device that requires a 1.5V or 1.2V battery?
A5: Do not use this battery in devices designed for 1.2V or 1.5V batteries (such as standard remotes, basic wall clocks, or non-drain toys). Using a 3.7V battery in a low-voltage device can damage the device. It is strictly for high-drain, 3.7V-compatible electronics.
Shipping and Returns
-
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.
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:
-
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.
