SK136 12V Battery Low Voltage Cut-off Protection Module with Relay

Protect your 12V battery from damaging deep discharge with the SK136 Low Voltage Cut-off Protection Module. This ready-to-use board automatically disconnects the load when battery voltage drops below a set threshold, extending battery life significantly.

• Model: SK136
• Input Voltage: 12V DC
• Protection Type: Low voltage cut-off (under-voltage protection)
• Relay Output: SPDT (switches load on/off)
• IC: LM358 op-amp for precise voltage sensing
• Optocoupler: PC817 for isolated triggering
• Transistor: 2X945 for relay drive
• Indicators: Green LED (normal) + Red LED (low voltage warning)
• Adjustable threshold via onboard potentiometer
• Suitable for: Lead-acid, SLA, and 12V Li-ion batteries
• Mounting holes for easy panel installation