Features 1、LED Display Board: Smart battery capacity display board, compatible with acid, lithium, and lithium iron phosphate batteries for a wider use. 2、Intelligent Design: Adopting international standard sizes for easy installation with a compact size that saves space. Three color indicator lights for different battery types for easy identification. 3、Easy Operation: Upon initial power up, defaults to lithium ion battery voltage. Automatically goes into low power mode after 10 seconds without button operation. Manual short press button to easily open the display and view battery level. 4、Convenient Usage: Made of premium PCB material, working voltage DC 5‑30V with less than 10mA working current. LED indicator display with fast 500ms refresh rate for real time information. 5、Versatile Application: LED battery indicator is suitable for various batteries like acid, lithium, and lithium iron phosphate. Compact design and easy installation make it ideal for use in different devices and systems. Specification Item Type: LED Battery Indicator Model: 4615 Material: PCB Working Current: Less than 10mA Display Method: LED indicator Refresh Speed: 500ms/time Working Voltage: DC 5-30V Package List 1 x LED Battery Indicator