Description: 【Real Time Voltage and Power Display】The car battery voltage and power display can monitor and display the voltage and power of the car battery in real time. 【Supports 12V and 24V Battery】This monitor supports both 12V and 24V battery, making it highly adaptable. 【Support USB Fast Charging】In addition to displaying the battery level, it also supports USB fast charging, which is convenient and practical. 【Supports Multiprotocol Fast Charging】This monitor supports multiple charging protocols to meet the fast charging needs of different devices. 【Reliable】Battery Capacity Voltage Meter has multiple protection functions such as overcharge protection, overvoltage protection, and overcurrent protection. Specification: Input Voltage: DC 6V-30V Battery Display: 7 Segment Display, 13%, 26%, 39%, 52%, 65%, 78%, 91% Output Power: Maximum 24W Working Temperature: -10-60°C Size Chart: 7.9cmx4.3cmx3.9cm/3.11inchx1.69inchx1.54inch Package Includes: 1 Battery Capacity Voltage Meter Note: Please allow slightly errors due to manual measurement and different monitors.