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Xain-USA

3.7V 4400mAh Custom Order

$15.99
Shipping calculated at checkout.

Double check the connector and polarity are identical to your old battery. Not sure? Contact Us!


Care information

To ensure the longevity and safety of your lithium-ion (Li-ion) batteries, follow these care instructions:

  • Avoid Extreme Temperatures
  • Partial Charge is Better
  • Avoid Overcharging
  • Minimize Exposure to High Discharge Rates
  • Store Properly When Unused
  • Use Proper Chargers and Cables
  • Keep Battery Contacts Clean

Delivery and Shipping

We ship our products using USPS Ground Advantage 2-5 Delivery. Please note that USPS may experience delays in its network.

Refer to your receipt email for the tracking code to view updates.

Experience the Xain-USA difference

Enjoy free shipping and 30-day return window on our high-quality batteries

Description

Premium Power, Safety, and Reliability for Your Devices.

Key Features

  • Capacity & Voltage: 3.7V, 4400mAh (16.28Wh) – Delivers extended runtime for your devices.
  • Built-in BMS: Features an integrated Battery Management System to protect against overcharge, over-discharge, overcurrent, short-circuit, and temperature fluctuations.
  • Certified Safety Standards: CE, RoHS, and UN38.3 certifications ensure the highest levels of safety and reliability.
  • Configuration: 1S2P configuration for efficient power delivery.
  • Customizable Connector: Choose your preferred connector plug to match your project’s needs (special order).
  • Low Self-Discharge: Retains over 80% of capacity after a year of storage, ensuring readiness when needed.
  • No Memory Effect: Maintains consistent performance throughout its lifespan with no memory effect.

Technical Specifications

  • Dimensions: 2.72” x 1.55” x 0.76” (69 x 39 x 19 mm)
  • Weight: 3.3 oz (94 grams)
  • Voltage: 3.7V
  • Capacity: 4400mAh (16.28Wh)
  • Configuration: 1S2P (2 x 2200mAh cells in parallel)
  • Connector: Custom order – select your preferred plug (perfect for various applications)
  • Self-Discharge Rate: Retains over 80% capacity after one year of storage

Why Choose the Xain-USA 4400mAh Li-ion Battery Pack?
This premium battery pack offers exceptional power, reliability, and safety for a variety of applications. Whether you’re powering outdoor lights, solar devices, or DIY electronics, this pack is designed to meet your power needs with customizable options for your convenience.

Perfect for a Wide Range of Applications:

  • Outdoor Motion Lights
  • Solar Lights
  • Kendal Post Lights
  • Flashlights, Speakers, GPS, Fire Alarms, Toys, and More!
  • Compact & Lightweight: At 2.72” x 1.55” x 0.76” and 3.3 oz, this pack is easy to integrate into your devices.

Why It’s the Right Choice:

  • Enhanced Capacity: 16.28Wh for longer operation and fewer recharges.
  • Safety Assurance: Built-in BMS protects against common risks.
  • Versatile Connector Options: Customize the connector to your exact needs, ensuring seamless integration with your devices.

Quality Assurance

  • Certified Suppliers: Our battery packs are sourced from accredited manufacturers who meet strict quality standards.
  • Rigorous Testing: Every battery undergoes comprehensive testing for reliability, performance, and safety.
  • Compliance with Safety Standards: CE, RoHS, and UN38.3 certifications ensure your battery pack is safe for use in any application.

Safe Handling Instructions

  • Store Properly: Avoid storing in excessively hot or cold environments.
  • Keep Out of Reach of Children: Handle and store batteries safely.

Peace of Mind with Every Purchase

  • 30-Day Full Refund Policy: If the battery doesn't meet your needs, return it for a full refund within 30 days.
  • 1-Year Warranty: This battery is backed by a one-year warranty against manufacturing defects.
  • Customer Support: Our responsive team is available to assist you within 24 hours. For inquiries, contact us at service@xain-usa.com.

Get Yours Today!
Invest in a reliable, long-lasting power solution with the Xain-USA 4400mAh battery pack. Choose your connector and enhance your projects with confidence.

Link to User Manual | Visit Xain-USA.com

Payment & Security

Payment methods

  • Amazon
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Venmo
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Battery specification guide

Need help figuring out what the right type of battery fits your needs? We've made a quick guide to explain the differences between our most popular models.

A table comparing the facets of 3 products
Facet
One Cell Battery Pack
Two Cell Battery Pack
Three Cell Battery Pack
Description
Description

The 1S1P 18650 battery pack is a compact, reliable power source for devices like solar lights, small toys, remotes, and more. With a single lithium-ion cell, it offers long-lasting energy and steady performance in a lightweight design.

The 1S2P & 2S1P 18650 battery pack build features two lithium-ion cells, providing more power and longer runtime than the 1S1P version. It’s ideal for devices like higher-power flashlights, and other projects that need extra energy without compromising on size or weight.

The 1S3P & 3S1P 18650 battery pack build contains three lithium-ion cells, offering even more power and extended runtime. Perfect for high-demand devices like power tools, high-intensity electronics, and DIY projects that require extra energy, all in a compact, durable package.

Size
Size
Small
Medium
Large
Use
Use
Lights, Speakers, Toys, Small Electronics
Smart Home Devicers, Speakers, Flashlights, Toys
LED Flashlights, Power Banks, Power Tools, Beauty Mirrors, Large Electronics
Note
Note
Available in 3.7V, 3.8V
Available in 3.7V, 7.4V
Available in 3.7V, 11.1V

We're here to make life easier

Whether you are looking for a popular battery, need assistance finding a model, or want to order a custom-made battery tailored to your needs- we're here.