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Delipow 10440 3.7V 320mAh Li-ion rechargeable battery is specially engineered for mini flashlights and other compact high-voltage electronic devices. Despite its tiny size (identical to AAA), this battery packs 3.7V of high-discharge power, low internal resistance, and a massive 1500-cycle lifespan. It is the ideal power solution for your specific specialty battery compartments.
Designed for Mini Flashlights: The 10440 format (10mm x 44mm) is engineered specifically for compact EDC flashlights and specialized precision devices.
High Voltage 3.7V Output: Delivers strong, consistent 3.7V power with low internal resistance, ensuring your mini flashlights shine bright and perform at their best.
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 waste.
Low Self-Discharge Technology: Maintains power over long periods of storage, so your batteries are ready to use whenever you need them.
Flat Top Design: Features a standard flat top. (Please confirm your device requires a flat top or button top battery before purchasing.)
Low Resistance & High Discharge: Features high discharge performance and low resistance, ensuring efficient energy delivery without power loss.
Quality Assurance & Safe Materials: Manufactured with mercury-free and cadmium-free materials, adhering to 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.
Brand: DelipowModel: 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) x 44mm (Height)
Pack Quantity: 2-Pack
Mini Tactical Flashlights: The ideal power source for small, high-lumen EDC flashlights and keychain lights.
Specialized Laser Pointers & Aimers: Provides stable 3.7V voltage for compact laser aiming devices and pointers.
Precision Remote Control Transmitters: Powers small transmitters and handheld controllers for hobbyist devices.
Portable Medical Devices: Suitable for compact digital blood pressure monitors and other specific portable medical instruments.
Small Sensor & Alarm Systems: Reliable backup power for miniaturized security sensors and alarm transmitters.
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 x 44mm), it operates at 3.7V. Using a 3.7V battery in a device designed for 1.2V or 1.5V (like 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.
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.
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