Battery life depends on your power bank capacity and heat setting. On high, expect 3-5 hours with a 10,000mAh bank; medium delivers 5-7 hours; low provides 8+ hours of continuous warmth.

Yes, but remove the power bank first. Hand washing is recommended for longevity. If machine washing, use gentle cycle, cold water, and air dry completely before reconnecting power.

Any standard USB power bank works perfectly. We recommend 10,000mAh minimum for several hours of use. Higher capacity banks provide longer heating duration for extended outdoor activities.

Absolutely. The WarmCorex uses safe heating technology with automatic temperature regulation. All heat settings remain within comfortable, skin-safe ranges. Take normal breaks as you would with any heated product.

Yes, the double switch control system lets you operate front and back zones independently. Heat just your back, just your front, or both together based on your comfort needs.

The WarmCorex reaches operating temperature within 30-60 seconds of activation. You'll feel noticeable warmth almost immediately, with full heat distribution achieved within two minutes of powering on.

Not at all. The heating panels are thin, flexible, and seamlessly integrated into the quilted vest design. You'll barely notice them while wearing, yet they deliver powerful, consistent warmth.

Both options work beautifully. Wear it as a mid-layer under jackets for outdoor activities, or as an outer layer over shirts for indoor comfort. The slim profile layers perfectly either way.