Here are some key features and functions of this battery capacity indicator:

Voltage Range: This indicator is versatile and can be used with batteries that have a voltage range from 8V to 70V. It can support 12V, 24V, 36V, and 48V battery systems commonly found in various applications.

LCD Display: It features an LCD display that shows the battery voltage and the estimated state of charge as a percentage. This display provides real-time information about the battery's status.

Compatibility: It can be used with different types of batteries, including lead-acid batteries (such as sealed, AGM, and gel batteries) and lithium-ion batteries.

Voltage Accuracy: The digital voltmeter typically provides accurate voltage readings, allowing you to monitor the battery voltage precisely.

State of Charge Estimation: The device estimates the state of charge based on the battery's voltage and discharge characteristics. This estimation provides an approximate idea of how much charge is left in the battery.

Low Voltage Warning: Some models may feature a low voltage warning function that alerts you when the battery voltage drops to a critical level. This can help prevent over-discharge, which can be harmful to batteries.

Easy Installation: It is relatively easy to install, with wiring connections to the battery terminals. Depending on the model, it may also come with a user manual for guidance.

Wide Application: This indicator is commonly used in various applications, including electric vehicles (e-bikes, electric scooters), solar power systems, UPS (Uninterruptible Power Supplies), and more.

Multiple Voltage Options: Depending on the specific model, you can select the appropriate voltage range (e.g., 12V, 24V, 36V, or 48V) that matches your battery system.

Durable and Compact Design: The indicator is typically designed to be durable and compact, making it suitable for both indoor and outdoor use.

Battery specifications:

P=lead acid, L=lithium battery, F=lithium iron phosphate battery
Single string battery nominal voltage:
Lead acid = 12V, lithium battery = 3.7V, lithium iron phosphate = 3.2V