Commonly Asked Questions

Q1: Does it warm one side or both? A1: It warms both sides, keeping your both hands comfortable.

Q2: How quickly does it reach 126 °F? A2: Once the hand warmer mode is activated, the real-time temperature will be displayed. It heats up to 126 °F in about 30 seconds to 1 minute and maintains that temperature. (In colder environments, heating may take slightly longer — this is normal.)

Q3: Is it safe to use? A3: Yes. The built-in chip automatically regulates temperature during charging, and the flame-retardant ABS material prevents overheating.

Q4: How do I switch between hand warmer and power bank modes? A4: The device has two buttons.

• Press and hold the right button for 3 seconds to activate heating mode and display the temperature.
• Press and hold the right button again for 3 seconds to turn off heating.
• Press the left button to switch to power bank mode and display battery status.

Q5: How do I charge it? A5: The unit has one input and one output port on the right side. A micro-USB charging cable is included.

Q6: Why does the temperature drop after reaching 126 °F? A6: The device features high-temperature protection. Once it reaches 126 °F, it will pause heating. If you’d like it warmer again, simply restart the heating function.

Specifications

• Material: Flame-retardant ABS + high thermal conductivity aluminum alloy
• Battery Capacity: 5000mAh
• Input: 5V / 2A
• Size: 69 × 74 × 34mm
• Functions: Hand warmer + mobile phone power bank

⚠️ Shipping Notice Due to extremely high demand, shipping for this product takes longer than usual. Please allow 8–24 business days for delivery.

2 In 1 Retro Heater USB Charger Output Portable External Battery Hand Warmers 5000mAH Handheld Power Bank For Christmas/Winter