OCOOPA UT3057 Rechargeable Dual-Sided Hand Warmer User Manual

1. Product Overview

The OCOOPA UT3057 is a compact, rechargeable hand warmer designed to provide instant warmth. It features dual-sided heating, multiple temperature settings, and a portable design, making it suitable for various outdoor activities and daily use.

Image 1.1: OCOOPA UT3057 Hand Warmer (Blue)

This image displays the OCOOPA UT3057 hand warmer in blue, showcasing its sleek design and compact size. The front and back views are visible, highlighting the smooth surface and the LED indicators.

Key Features:

• Dual-Sided Instant Heat: Provides warmth on both sides, heating up in approximately 3 seconds.
• UL Certified Safety: Equipped with UL-certified batteries and an ultra-resistant ABS casing for enhanced safety, including overheat and overcharge protection.
• Long-Lasting Warmth: Offers up to 8 hours of heat on a single charge (duration varies by heat setting).
• Portable Design: Lightweight (67g) and slim (1.5 cm thick), easily fitting into pockets, gloves, or bags.
• Adjustable Heat Levels: Three temperature settings ranging from 37°C to 52°C (98.6°F to 125.6°F).
• LED Indicators: Clear LED display for battery level and current heat setting.
• Ergonomic Shape: Oval and slim design for comfortable handling.

2. Package Contents

Please verify that all items listed below are included in your package:

Image 2.1: Package Contents

This image shows the contents of the OCOOPA UT3057 package, including two hand warmers, a charging cable, and the user manual, all neatly arranged within the product box.

• 2 x OCOOPA UT5 DuoHeat Hand Warmers (2500 mAh each)
• 1 x USB Charging Cable (Y-cable for simultaneous charging)
• 1 x User Manual

3. Setup

3.1 Initial Charging

1. Before first use, fully charge both hand warmers.
2. Connect the provided USB charging cable to a power source (e.g., USB wall adapter, computer USB port).
3. Connect the two smaller ends of the Y-cable to the charging ports on each hand warmer.
4. The LED indicators will show the charging status. A full charge may take up to 8 hours.
5. Once fully charged, all LED lights will be solid. Disconnect the hand warmers from the charging cable.

4. Operating Instructions

4.1 Power On/Off

• To power on, press and hold the power button for approximately 3 seconds until the LED indicators light up.
• To power off, press and hold the power button for approximately 3 seconds until the LED indicators turn off.

4.2 Adjusting Heat Levels

The hand warmer offers three heat levels:

1. With the device powered on, short press the power button to cycle through the heat settings.
2. Each short press will change the heat level, indicated by the red LED lights.
3. Level 1 (Low): One red LED light (approx. 37°C / 98.6°F)
4. Level 2 (Medium): Two red LED lights (approx. 47°C / 116.6°F)
5. Level 3 (High): Three red LED lights (approx. 52°C / 125.6°F)

4.3 Single-Sided vs. Dual-Sided Heating

The UT3057 features a slide switch to activate or deactivate dual-sided heating.

• Dual-Sided Heating: Slide the switch to the position that activates both heating surfaces. This provides maximum warmth.
• Single-Sided Heating: Slide the switch to the position that activates only one heating surface. This conserves battery life and is suitable when less intense warmth is desired.

Image 4.1: Dual-Sided Heat Activation

This image illustrates the dual-sided heating capability of the OCOOPA UT3057 hand warmer, showing how both surfaces provide warmth simultaneously. It also indicates the quick 3-second heating time.

4.4 Battery and Heat Level Indicator

The LED lights on the device indicate both the battery level and the selected heat setting.

• Battery Level (Blue LEDs):
  • Three blue LEDs: 70-100% charge
  • Two blue LEDs: 30-70% charge
  • One blue LED: Below 30% charge (recharge soon)
  • Flashing blue LED: Critically low battery
• Heat Level (Red LEDs):
  • One red LED: Low heat
  • Two red LEDs: Medium heat
  • Three red LEDs: High heat

Image 4.2: LED Indicators

This image demonstrates the LED indicators on the OCOOPA UT3057 hand warmer, showing how blue lights represent battery level and red lights indicate the active heat setting, providing clear visual feedback to the user.

5. Safety Information

Your OCOOPA UT3057 hand warmer is designed with safety in mind. Please adhere to the following guidelines for safe operation:

• Do not expose the device to extreme temperatures (above 60°C / 140°F or below -10°C / 14°F).
• Avoid dropping or subjecting the device to strong impacts.
• Do not disassemble, puncture, or modify the device.
• Keep away from water and moisture. Do not immerse in liquid.
• Use only the provided charging cable or a certified equivalent.
• Do not leave the device unattended while charging.
• If the device becomes excessively hot, emits smoke, or shows any signs of damage, discontinue use immediately.
• Keep out of reach of children and pets.
• The device is equipped with UL-certified batteries and features overheat and overcharge protection for safe operation.

Image 5.1: UL Certified Safety

This image highlights the UL certification of the OCOOPA UT3057 hand warmer, emphasizing its safety features such as precise temperature control, stability, and overall safety compliance.

6. Maintenance

6.1 Cleaning

• Ensure the device is powered off and disconnected from any power source before cleaning.
• Wipe the exterior with a soft, dry, or slightly damp cloth.
• Do not use harsh chemicals, abrasive cleaners, or immerse the device in water.

6.2 Storage

• Store the hand warmer in a cool, dry place away from direct sunlight and extreme temperatures.
• For long-term storage, charge the device to approximately 50-70% every three months to maintain battery health.

7. Troubleshooting

• Device not turning on:
  • Ensure the device is fully charged.
  • Press and hold the power button for 3 seconds to power on.
• Device not heating:
  • Check if the device is powered on and a heat level is selected (red LEDs should be lit).
  • Ensure the dual-sided heating switch is in the desired position.
  • If the battery is critically low, the heating function may be disabled. Recharge the device.
• Device not charging:
  • Verify the charging cable is securely connected to both the hand warmer and the power source.
  • Try a different USB port or power adapter.
  • Ensure the charging cable is not damaged.
• Device gets too hot:
  • Reduce the heat level by short pressing the power button.
  • If discomfort persists, power off the device. The device has built-in overheat protection.

8. Specifications

9. Warranty and Support

9.1 Warranty Information

OCOOPA products are manufactured to high-quality standards. For specific warranty details, please refer to the warranty card included in your product packaging or visit the official OCOOPA website. Keep your purchase receipt as proof of purchase for any warranty claims.

9.2 Customer Support

If you encounter any issues or have questions regarding your OCOOPA UT3057 hand warmer, please contact OCOOPA customer support. Contact information can typically be found on the product packaging, the official OCOOPA website, or through your retailer.