Soshine 10440 3.7V 350mAh Li-ion Battery – 1C Discharge, 3-Layer Safety Protection, Low Self-Discharge for Mini Flashlights & EDC Gear (1/2/4-Pack Options with Case)
Description
Product Description:
The Soshine 10440 is a premium-grade lithium-ion battery engineered for reliable power, exceptional safety, and long-term storage. This bundle delivers a true 350mAh (1.3Wh) capacity, a stable 3.7V output, and a 1C (350mA) continuous discharge current. Its compact size (10mm x 43mm) is nearly identical to a standard AAA battery, but it operates at 3.7V—more than double the voltage of standard batteries.
Built with a high-strength nickel-plated steel shell and a full internal safety structure, this battery offers 3-layer protection including CID (explosion-proof pressure relief switch), PTC (over-current/over-temperature protection), and PME (physical isolation at 160°C). With advanced low self-discharge technology, it retains up to 85% of its charge even after one year of storage.
To suit your specific needs, we offer three purchasing options:
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1pc: A single battery for personal backup.
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2pcs with Case: Two batteries with a free storage case for rotation.
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4pcs with Case: Four batteries with a free storage case for multi-device households.
Key Features:
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Soshine 10440 Premium Li-ion Cell: High-quality battery with a true 350mAh / 1.3Wh capacity.
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1C (350mA) Continuous Discharge: Delivers a stable 350mA output for high-drain compact devices.
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3-Layer Safety Protection: CID (explosion-proof switch), PTC (over-current/over-temperature protection), and PME (160°C physical isolation).
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High-Strength Steel Shell: Nickel-plated steel casing with exhaust vents to prevent explosion and leakage.
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Ultra-Low Self-Discharge: Retains up to 85% of its original capacity after one year of storage.
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Stable Voltage Output: Prevents unstable current from damaging your electronics.
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Compact 10440 Size: Measures 10mm (Diameter) x 43mm (Height), perfectly fitting 10440 battery compartments.
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Versatile Options: Choose from 1pc, 2pcs (with case), or 4pcs (with case).
Product Parameters (Based on Spec Sheet):
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Brand: Soshine
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Model: 10440 (AAA size compatible)
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Size: 10440
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Capacity: 350mAh / 1.3Wh
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Nominal Voltage: 3.7V
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Charging Voltage: 4.2V
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Discharge Cut-off Voltage: 3.0V
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Max Continuous Discharge Current: 350mA (1C)
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Internal Resistance: 55-62mΩ
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Standard Charging Current: 70mA (0.2C)
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Max Charging Current: 175mA (0.5C)
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Safety Features: CID, PTC, PME 3-layer protection, nickel-plated steel shell, exhaust vents
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Self-Discharge: Retains ≥85% after 1 year of storage
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Weight: 17g
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Dimensions: 10mm (Diameter) x 43mm (Length)
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Pack Quantity: 1pc / 2pcs (with case) / 4pcs (with case)
Applications:
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Mini Tactical Flashlights: Powers compact high-lumen flashlights and keychain lights.
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EDC & Everyday Gear: Ideal power source for everyday carry mini electronics.
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Miniature Sensors & Gadgets: Suitable for small smart sensors, alarms, and portable gadgets.
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DIY Micro Electronics: Perfect for custom miniature electronic projects.
Frequently Asked Questions (FAQ):
Q1: Can I use this battery as a replacement for a standard AAA battery?
A1: NO. Please read the important warning above! While the physical size is nearly identical to a standard AAA battery, the voltage is 3.7V, which is significantly higher than 1.2V/1.5V batteries. Using this battery in a standard AAA device will instantly damage your device. It is ONLY compatible with devices specifically designed for 10440 or 3.7V power.
Q2: What is the advantage of the 3-layer safety protection?
A2: The Soshine 10440 features CID (explosion-proof pressure relief switch) that activates under high pressure, PTC (over-current/over-temperature protection) that cuts off current during short circuits, and PME that physically isolates at 160°C. Combined with a steel shell and exhaust vents, it offers comprehensive safety.
Q3: What is the discharge current of this battery?
A3: This battery supports a 1C (350mA) continuous discharge current, making it suitable for mini flashlights, EDC gear.
Q4: How long can this battery hold a charge?
A4: Thanks to advanced low self-discharge technology, it retains up to 85% of its charge even after one full year of storage, making it perfect for backup and emergency use.
Q5: What kind of charger should I use for this battery?
A5: You must use a charger specifically designed for 3.6V/3.7V Li-ion batteries with a 4.2V cut-off voltage. Do not use a standard AAA Ni-MH charger.
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
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Security

These are great batteries. I will definitely be buying more from Soshine.
Low self-discharge makes these great for standby devices.
The power output is stable and the battery lasts a long time.
The voltage and capacity were identical across all 4 cells in the pack.
These Soshine 10440s are great. I recommend them.
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.
