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)

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:

1. 1pc: A single battery for personal backup.

2. 2pcs with Case: Two batteries with a free storage case for rotation.

3. 4pcs with Case: Four batteries with a free storage case for multi-device households.

Key Features:

• Soshine 10440 Premium Li-ion Cell: High-quality battery with a true 350mAh / 1.3Wh capacity.

• 1C (350mA) Continuous Discharge: Delivers a stable 350mA output for high-drain compact devices.

• 3-Layer Safety Protection: CID (explosion-proof switch), PTC (over-current/over-temperature protection), and PME (160°C physical isolation).

• High-Strength Steel Shell: Nickel-plated steel casing with exhaust vents to prevent explosion and leakage.

• Ultra-Low Self-Discharge: Retains up to 85% of its original capacity after one year of storage.

• Stable Voltage Output: Prevents unstable current from damaging your electronics.

• Compact 10440 Size: Measures 10mm (Diameter) x 43mm (Height), perfectly fitting 10440 battery compartments.

• Versatile Options: Choose from 1pc, 2pcs (with case), or 4pcs (with case).

Product Parameters (Based on Spec Sheet):

• Brand: Soshine

• Model: 10440 (AAA size compatible)

• Size: 10440

• Capacity: 350mAh / 1.3Wh

• Nominal Voltage: 3.7V

• Charging Voltage: 4.2V

• Discharge Cut-off Voltage: 3.0V

• Max Continuous Discharge Current: 350mA (1C)

• Internal Resistance: 55-62mΩ

• Standard Charging Current: 70mA (0.2C)

• Max Charging Current: 175mA (0.5C)

• Safety Features: CID, PTC, PME 3-layer protection, nickel-plated steel shell, exhaust vents

• Self-Discharge: Retains ≥85% after 1 year of storage

• Weight: 17g

• Dimensions: 10mm (Diameter) x 43mm (Length)

• Pack Quantity: 1pc / 2pcs (with case) / 4pcs (with case)

Applications:

• Mini Tactical Flashlights: Powers compact high-lumen flashlights and keychain lights.

• EDC & Everyday Gear: Ideal power source for everyday carry mini electronics.

• Miniature Sensors & Gadgets: Suitable for small smart sensors, alarms, and portable gadgets.

• 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.