1. Introduction
Thank you for choosing the WHATOOK Rechargeable Hand Warmers. This 2-pack portable electric hand warmer features a 2-in-1 magnetic design, offering reusable heating for various outdoor activities such as camping, golf, and hunting. This manual provides essential information for the safe and efficient use of your new hand warmers.
Figure 1: WHATOOK Rechargeable Hand Warmers (2-Pack)
The image displays two sleek, black hand warmers with orange indicator lights, designed to be held comfortably in the hand. They are shown side-by-side, highlighting their compact and ergonomic form factor.
2. Setup
2.1 Initial Charging
Before first use, fully charge both hand warmers. A USB charging cable is included in the package.
- Connect the provided USB cable to the charging port on each hand warmer.
- Connect the other end of the USB cable to a compatible USB power adapter (not included) or a computer USB port.
- The indicator lights will turn blue when charging.
- Charging typically takes approximately 3 hours for a full charge. The lights will change color (e.g., turn off or change to orange) when fully charged.
Figure 2: Charging the Hand Warmers
This image shows two black hand warmers connected to charging cables, illustrating the charging process. The image also indicates "3 Hour Charge Times" and "10.5 Hour*2 Working Times" for clarity.
3. Operation
3.1 Power On/Off
- To turn on: Long press the power button for 3 seconds. The indicator lights will illuminate.
- To turn off: Long press the power button for 3 seconds again. The indicator lights will turn off.
3.2 Temperature Adjustment
The hand warmers feature 3 adjustable temperature settings:
- First Gear: Approximately 113℉ (45℃) - Provides gentle warmth for up to 10.5 hours.
- Second Gear: Approximately 122℉ (50℃) - Provides moderate warmth for up to 8 hours.
- Third Gear: Approximately 131℉ (55℃) - Provides maximum warmth for up to 5.5 hours.
To change temperature: Short press the power button to cycle through the temperature settings.
Figure 3: Temperature Settings and Battery Life
This image illustrates the three heat levels (104℉~113℉, 113℉~122℉, 122℉~131℉) with their respective working times (10.5H, 8H, 5.5H). It also shows the total working time of 10.5 hours and a charging time of 3 hours.
3.3 Magnetic Design
The hand warmers feature a 2-in-1 magnetic design, allowing them to quickly merge and separate. This design enhances portability and ease of use, enabling you to use them individually or as a pair.
Figure 4: 2-in-1 Magnetic Design
This image showcases the magnetic design, with one hand warmer separated to reveal its internal heating element and the other showing how they connect. It emphasizes the quick merging and separation for increased functionality.
4. Maintenance
- Cleaning: Wipe the surface of the hand warmers 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. Avoid extreme temperatures and direct sunlight.
- Battery Care: To prolong battery life, fully charge the devices at least once every three months if not used regularly.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Hand warmer does not turn on. | Low battery or not charged. | Charge the hand warmer fully. Ensure the power button is long-pressed for 3 seconds. |
| Hand warmer not heating up. | Incorrect temperature setting or device malfunction. | Short press the power button to cycle through temperature settings. If issue persists, contact customer support. |
| Short battery life. | Using highest temperature setting or aging battery. | Lower the temperature setting for extended use. Ensure full charge before use. |
| Indicator lights not working. | Device malfunction. | Contact customer support for assistance. |
6. Specifications
| Feature | Detail |
|---|---|
| Brand | WHATOOK |
| Model Name | OT-116 |
| Color | Black |
| Material | Plastic |
| Battery Capacity | 4000 Milliamp Hours (per unit) |
| Charging Time | Approx. 3 Hours |
| Lower Temperature Rating | 113℉ (45℃) |
| Upper Temperature Rating | 131℉ (55℃) |
| Reusability | Rechargeable |
| Item Weight (Single) | 0.13 lbs (approx. 59g) |
| Dimensions (Single) | 3.5in (L) x 1.8in (W) x 0.43in (H) |
| Included Components | USB Charging Cable |
6.1 Safety Certifications
The WHATOOK Hand Warmers comply with multiple safety certifications, ensuring stable temperature control and protection against overcharge, overvoltage, and overcurrent. These include:
- FCC
- MSDS
- RoHS
- CE
- UL499
Figure 5: Safety Certifications
This image visually represents the safety certifications obtained by the product, including MSDS, FCC, UL499, RoHS, and CE, along with icons for short circuit, overcharge, overcurrent, and overpower protection.
7. Warranty & Support
7.1 Warranty Information
The WHATOOK Rechargeable Hand Warmers come with a 1-Year Warranty from the date of purchase. This warranty covers manufacturing defects and issues arising from normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or improper storage.
7.2 Customer Support
For any questions, concerns, or warranty claims, please contact WHATOOK customer support through the retailer's platform where you purchased the product or visit the official WHATOOK store on Amazon:
Visit the WHATOOK Store on Amazon
Please have your purchase details and model number (OT-116) ready when contacting support.
