- Fully functional: This product accurately displays battery voltage and power, providing real-time monitoring of your device's status. - Dual charging capability: Easily plug it into your mobile phone or other 5V devices for convenient charging on-the-go. - Versatile applications: Ideal for outdoor power supplies, mobile power banks, and various instruments that require additional battery power and voltage display. - Enhanced usability: The built-in USB port allows you to charge mobile phones and other compatible devices, making it a practical solution for outdoor adventures and emergencies. - Compatibility: Works seamlessly with all 5V devices, ensuring you stay powered up wherever you are. - Compact and durable design: Lightweight and robust, this product is designed to withstand outdoor conditions while providing long-lasting performance. Use scenarios: 1. Camping trips: Keep your devices charged and monitor battery levels effortlessly while enjoying the great outdoors. 2. Emergency preparedness: Ensure you have a reliable power source for your electronics during unexpected outages or emergencies. 3. Fieldwork: Perfect for professionals who need to maintain power for instruments and devices in remote locations.