1. Introduction
Thank you for choosing the OCOOPA UT2s MagTwins Rechargeable Hand Warmers. This device is designed to provide warmth and serve as a portable power bank, making it ideal for various outdoor activities and cold environments. Please read this manual thoroughly before use to ensure proper operation and safety.
2. Safety Information
- Do not expose the device to extreme temperatures (above 140℉/60℃) or direct sunlight for extended periods.
- Keep the device away from water and other liquids.
- Do not attempt to disassemble, repair, or modify the device.
- Keep out of reach of children.
- Use only the provided charging cables or certified equivalents.
- If the device becomes excessively hot, emits smoke, or shows any signs of damage, discontinue use immediately.
3. Package Contents
- 2 x OCOOPA UT2s MagTwins Hand Warmers
- 2 x USB-C Charging Cables
- 1 x Carrying Pouch
- 1 x User Manual
4. Product Overview
The OCOOPA UT2s MagTwins consist of two individual hand warmer units that can be magnetically attached or separated for versatile use. Each unit features a power button, LED indicators for heat level and battery status, and charging ports.

Figure 1: OCOOPA UT2s MagTwins Hand Warmers (Air Force Blue)

Figure 2: Charging and Output Ports
- Power Button: Used to turn the device on/off and cycle through heat settings.
- LED Indicators: Display current heat level (red lights) and battery status (blue lights).
- USB-C Input Port: For charging the hand warmer units.
- USB-A Output Port: For charging external devices (e.g., smartphones).
- Magnetic Connection: Allows the two units to attach securely.
5. Setup and Charging
5.1 Initial Charge
Before first use, fully charge both hand warmer units. Connect the provided USB-C charging cables to each unit and plug them into a compatible USB power adapter (not included). The blue LED indicators will show charging progress and turn solid when fully charged.
5.2 Checking Battery Status
Double-press the power button quickly to display the battery level via the blue LED indicators. Each blue light represents approximately 25% charge.
6. Operating Instructions
6.1 Turning On/Off
- To turn on: Press and hold the power button for 3 seconds. The red LED indicators will light up, and the device will begin heating.
- To turn off: Press and hold the power button for 3 seconds. The red LED indicators will turn off.
6.2 Adjusting Heat Levels
Once the device is on, short-press the power button to cycle through the four heat settings. The number of red LED lights indicates the current heat level:
- 1 Red Light: Level 1 (approx. 100-108°F / 38-42°C)
- 2 Red Lights: Level 2 (approx. 108-118°F / 42-48°C)
- 3 Red Lights: Level 3 (approx. 118-127°F / 48-53°C)
- 4 Red Lights: Level 4 (approx. 127-137°F / 53-58°C)

Figure 3: Heat Level Indicators
6.3 Using as a Power Bank
Each OCOOPA UT2s unit can function as a 5000mAh power bank. To charge an external device, connect your device's charging cable to the USB-A output port on the hand warmer. The hand warmer will automatically begin charging your device. Note that using the power bank function will reduce the available battery life for heating.

Figure 4: Power Bank Functionality
7. Features
- Magnetic Separation: The two units can be used together as a single palm-sized warmer or separated to hold one in each hand or share.
- Rapid Heating: Experience warmth within seconds of activation due to a 20% increase in power density.
- Extended Warmth: Each 5000mAh unit provides up to 8 hours of heat on the lowest setting, offering a combined 16 hours of warmth when used sequentially or shared.
- Durable Construction: Features a smooth, unibody high-grade brushed aluminum housing for efficient heat retention and distribution.
- Port Protection: Rubber covers shield charging ports from dust and debris.

Figure 5: Magnetic Separation Feature
8. Specifications
| Feature | Specification |
|---|---|
| Model Name | UT2s (MagTwins) |
| Brand | OCOOPA |
| Battery Capacity | 10000 mAh (2 x 5000 mAh units) |
| Heat Levels | 4 Levels (100-137°F / 38-58°C) |
| Max Heat Output | 137°F (58°C) |
| Max Heat Duration | 8+ hours per unit (on low setting) |
| Charging Port | USB-C Input |
| Output Port | USB-A Output (5V/2A Max) |
| Material | Aluminum |
| Dimensions (each unit) | 1.26 x 3.7 x 2.36 inches |
| Weight (each unit) | 0.25 Kilograms |
| UPC | 649615184875 |
9. Maintenance
- Cleaning: Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or immerse in water.
- Storage: Store the hand warmers in a cool, dry place when not in use. Ensure they are fully charged before long-term storage to preserve battery health.
10. Troubleshooting
- Device not turning on: Ensure the device is charged. Press and hold the power button for 3 seconds.
- Device not heating: Check battery level. Ensure the device is turned on and a heat level is selected.
- External device not charging: Ensure the hand warmer has sufficient charge. Check the connection cable and the external device's charging port.
- Slow charging: Ensure you are using a compatible power adapter and cable. Fast charging is indicated by a green light on some chargers.
11. Warranty and Support
The OCOOPA UT2s MagTwins Hand Warmers come with a 1-year warranty from the date of purchase. For warranty claims or technical support, please contact OCOOPA customer service through the retailer where the product was purchased or visit the official OCOOPA website.







