1. Simple wiring with two wires for a quick and convenient installation. It also includes reverse connection protection to prevent damage from incorrect wiring. Lead length: 150 mm. 2. Compatibility for both acid batteries and lithium batteries, offering flexibility for different setups. Settings can be easily adjusted via the back buttons to suit individual preferences. 3. Dual display modes for easy reading: battery symbol with percentage or battery symbol with voltage. Switching between modes is straightforward, and all battery specifications and function selections can be adjusted through the back buttons without the need for soldering. 4. Clear and adjustable display with a Brightness LCD. The backlight is readable in daylight and at night, with five levels of brightness to match lighting conditions. Energysaving and sleep modes help reduce power consumption. Practical applications Build or maintain DIY battery packs for portable power stations, RC models, or tool projects, where simple wiring and protection against reverse connections are beneficial. Use in small offgrid solar or charging setups that employ acid or lithium batteries, allowing easy monitoring and of display and alarm parameters. Monitor vehicle or equipment batteries in motorcycles, ebikes, RVs, boats, or other mobile platforms, providing clear voltage or capacity indicators as needed.