Battery life varies by setting: approximately 3-4 hours on high, 5-6 hours on medium, and 8-10 hours on low heat. A 10,000mAh power bank provides all-day warmth on lower settings.

Yes, remove the power bank first, then hand wash or machine wash on gentle cycle with cold water. Air dry completely before reconnecting the USB cable to ensure safe operation.

We recommend a 10,000mAh or higher capacity power bank for best results. Higher capacity banks provide longer heating duration, making them ideal for full-day outdoor activities or extended wear.

The vest is water-resistant for light moisture but not waterproof. It handles snow and light drizzle well, but disconnect the power bank in heavy rain and wear waterproof outerwear for protection.

The HeatPyra Heated Vest reaches optimal temperature within 3-5 minutes of activation. You'll feel noticeable warmth almost immediately, with full heat distribution achieved across all zones within five minutes.

Absolutely. The lightweight, flexible design makes it perfect for extended sitting. The heating zones provide excellent lumbar and back support during long drives, office work, or travel without restricting movement.

While there's no automatic shutoff, the simple one-button control makes it easy to turn off. The color-coded system prevents overheating, and the vest maintains safe operating temperatures throughout use.

Yes, the slim profile is specifically designed for layering. It fits comfortably under coats and jackets without bulk, or wear it as an outer layer over shirts for versatile warmth options.