Note: This is a typical procedure. Always verify with your specific manual.
If you are working with off-grid solar systems, DIY battery packs, or emergency power backups, you likely know the pain of accidentally over-discharging a battery. Deep discharges can permanently damage lead-acid and lithium cells. The (also known as the YIBAI YX-20A) is a popular, low-cost solution designed to prevent this by automatically cutting off power when voltage drops too low. yx-20a manual
Hold S2 until the display flashes. Use the Up/Down buttons to set the recovery voltage (e.g., 12.5V). Troubleshooting & Maintenance Note: This is a typical procedure