ColdBye 𝟏𝟐𝐕 Battery Pack, 5V 𝟐𝟎𝟎𝟎𝟎𝐦𝐀𝐡 /12V 6500mah, Upgraded Rechargeable Power Bank with Built-in USB-C Cable for Heated Vests, Jackets, LED Strip, Breast Pump, Heated Camping Chair
Product details
| Management number | 209129019 | Release Date | 2026/03/29 | List Price | $13.60 | Model Number | 209129019 | ||
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| Category | |||||||||
Experience dependable warmth and versatile 12-volt power wherever you go. Designed for heated vests, outdoor gear, and everyday electronics, this 20,000 mAh battery pack combines long-lasting endurance with intelligent auto-on technology and multi-port flexibility. The built-in USB-C cable keeps your setup clean and cable-free, while fast PD 18W recharging ensures you’re always ready for the next shift or adventure. Certified for safety and engineered for real-world durability, it’s the all-in-one power solution you can trust for winter commutes, job sites, camping, photography, and emergency backup
- 【BUILT-IN USB-C CABLE & MULTI-DEVICE OUTPUT】The integrated USB-C cable doubles as a rugged lanyard tested for 10,000 bends, eliminating the need for extra cords. Power multiple devices simultaneously via USB-A, USB-C PD 18W, and a dedicated 12V DC port—ideal for heated vests, phones, LED strips, breast pumps, cameras and more
- 【UNIVERSAL 12V & 5V COMPATIBILITY】Equipped with USB-A (5V/2A, 5V/3A, 9V/2A, 12V/1.5A), USB-C PD 18W in/out, and a 12V 1.8A DC barrel, plus two adapters (3.8 mm & 5.5 mm). Perfect as a 12V LED-strip battery, CCTV/telescope power supply, heated camping chair power source, or 12V heated vest/jacket pack. Not compatible with 7.4V gear
- 【PD 18W FAST RECHARGE & SAFETY CERTIFIED】Recharge from 0–100% in about 4.6 hours using an 18W PD charger (5.5 h @15W; 8.2 h @10W). UL2056, FCC, CE & RoHS-certified protection guards against overcharge, over-discharge, overheating, and short circuits—providing worry-free power for work, travel, and outdoor use
- 【LONG-LASTING TRUE 20,000 mAh CAPACITY】Built with high-density cells, this 20,000 mAh 12V battery pack keeps heated gear running for up to 8 hours and offers phone/tablet recharges on demand. Perfect for workdays and winter adventures, it delivers reliable all-night power without mid-shift swaps
- 【AUTO-ON CIRCUIT & SMART DIGITAL DISPLAY】The upgraded non-sleep circuit automatically restarts heated vests and jackets—no re-plugging or button pressing needed. A precise 1–100% LED digital display helps you track power levels easily during travel, job sites or cold-weather activities
| Brand | ColdBye |
|---|---|
| Color | Black |
| Voltage | 12 Volts |
| Amperage | 4 |
| Portable | Yes |
| Model Name | RTAX-021X |
| Unit Count | 1.0 Count |
| Item Weight | 0.7 Pounds |
| Manufacturer | Shenzhen R-TAX Technology Co., Itd |
| Model Number | RTAX-021X |
| Power Source | Corded Electric |
| Warranty Type | Limited Manufacturer |
| Connector Type | DC, Usb |
| Output Current | 3 Amps |
| Item Dimensions | 4.3 x 2.7 x 1 inches |
| Number of Ports | 3 |
| Antenna Location | Heated Vest Power Supply |
| Battery Capacity | 15000 Milliamp Hours |
| Number of Outlets | 1 |
| Compatible Devices | Heated Vest, Smartphone, heated jacket |
| Battery Charge Time | 3 Hours |
| Is Product Cordless | No |
| Number of Batteries | 1 12V batteries required. |
| Warranty Description | 1 |
| Item Dimensions L x W x Thickness | 4.3"L x 2.7"W x 1"Th |
| Other Special Features of the Product | Fast Charging, Lightweight, heated battery |
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