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Black Squid Rechargeable Batteries for BlackSquid & Tomum Heated Socks - 3.7V 4000mAh Battery Replacement with Dual-Port Charging Cable (2 Pack)

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US$23.99 cheaper than the new price!!

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Product details

Management number 209092394 Release Date 2026/03/29 List Price US$16.00 Model Number 209092394
Category

High-Capacity Battery for Lasting Heat Each BlackSquid rechargeable battery provides up to 9 hours of warmth on low, 6 hours on medium, and 4 hours on high settings. Perfect for keeping feet warm during cold weather. Charge Two at Once Includes a dual-port USB Type-C cable to charge both BlackSquid rechargeable batteries simultaneously. Works with standard 5V/1A USB chargers for quick, easy charging. Fits BlackSquid and Tomum Socks Compatible with BlackSquid Heated Socks and Tomum models using a 3.5mm round connector. Ideal for replacements or extra power on long trips. Consistent Power Output Each BlackSquid rechargeable battery delivers 3.7V at 2A with up to 8W output to maintain steady heat without interruptions. Compact and Portable Lightweight BlackSquid rechargeable batteries fit easily into heated sock compartments. Easy to carry for outdoor activities or travel. What’s in the Box? 2 x 4000mAh Rechargeable Battery 1 x Type-C Charging Cable Specifications: Battery Capacity: 4000mAh Input: 5V / 1A Output: 3.7V / 2A Certifications: CE, FCC, ROHS

  • Long-Lasting Warmth with Advanced Li-Polymer Battery: Each BlackSquid 4000mAh rechargeable Li-Polymer battery delivers up to 9 hours of heat on the lowest setting, 6 hours on medium, and 4 hours on high. Designed for reliable performance in BlackSquid and Tomum Heated Socks, this battery set is ideal for cold-weather activities, including skiing, hiking, outdoor work, or long winter commutes where consistent warmth and comfort are a must.
  • Dual Charging with Type-C Convenience: Includes a dual-port USB Type-C charging cable that powers both batteries at once, reducing downtime and streamlining the charging process. Each battery accepts a 5V / 1A input, allowing for compatibility with standard USB power sources such as wall adapters, power banks, and laptops. Full recharge takes approximately 4 hours, offering quick turnaround between uses.
  • Compatible with BlackSquid and Tomum Socks: Specifically designed to work seamlessly with BlackSquid Heated Socks and Tomum models using a 3.5mm round power connector. Whether used as replacements or extras for extended trips, these rechargeable batteries for heated socks maintain dependable heat output and fit precisely into compatible sock designs for a frustration-free experience.
  • Powerful Output for Steady Heating: Each BlackSquid replacement battery for heated socks delivers 3.7V at 2A with a maximum output power of 8W, supporting consistent heat performance across all temperature settings. The high-capacity design ensures a steady supply of warmth without sudden drops in output, making these batteries a reliable companion in harsh or fluctuating outdoor temperatures.
  • Lightweight and Travel-Ready Design: Compact and lightweight, each BlackSquid battery fits easily into standard heated sock compartments without adding discomfort or bulk. Their portable design makes them perfect for travel, day trips, or packing as backups for extended cold-weather adventures. Ideal for those who need lasting warmth with minimal hassle.
Color Black
Brand Name Black Squid
Unit Count 2.0 Count
Reusability Rechargeable
Manufacturer Black Squid
Material Type Plastic
Battery Capacity 4000 Milliamp Hours
Battery Charge Time 4 Hours
Battery Description Rechargeable Li-Polymer 4000mAh batteries
Included Components 2 Pack Rechargeable Battery
Warranty Description 1 Year Warranty
Recommended Uses For Product Heated Socks

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