XHM609 programmable low voltage disconnect switch Overview The XHM609 is a programmable low voltage disconnect switch designed for 1236V battery systems, including lithium ion batteries. It acts as a protection switch module to safeguard battery health and prevent deep discharge. Key features Programmable low voltage disconnect: automatically disconnects the load when the battery voltage reaches the preset threshold, helping to prevent overdischarge and extend battery life. Easy parameter setting: onboard momentary push button for simple configuration. Clear parameter display: 3digit red LED display provides visible, easytoread status and settings. Nonvolatile memory: settings are stored in nonvolatile memory, retained even when power is removed, ensuring continuity of your chosen parameters. Benefits Protects battery longevity by preventing deep discharge in 1236V systems. Quick, straightforward setup with a simple pushbutton interface and readable display. Reliable operation with preserved settings after power loss, reducing setup time for repeated use. Compatible with 1236V battery configurations, including lithium ion packs. Applications and use scenarios Solar energy storage: protect Liion or other 1236V battery banks used in offgrid solar systems by automatically disconnecting loads when voltage drops, preserving capacity for essential devices. RV, boat, or mobile power systems: safeguard vital loads in mobile 1236V configurations to prevent deep discharge and extend battery life during trips. Backup power supplies: integrate with small solar generators or auxiliary battery packs to ensure critical circuits remain within safe voltage ranges. How it works The device monitors the connected battery voltage and, when the voltage falls to the preset level, it disconnects the load to prevent overdischarge. When voltage recovers to an appropriate level, the module allows load connection again, enabling efficient protection with rapid response near the cutoff point. Notes Designed for 1236V battery systems and lithium ion batteries. Parameter settings remain intact without power, thanks to nonvolatile memory.