XH-M603 Battery Charging Control Module 12V–24V with LED Display

XH-M603 Battery Charging Control Module

The XH-M603 is an intelligent battery charging controller module that automatically manages the charge and discharge cycle of 12V–24V lead-acid or lithium battery systems. Featuring a bright 3-digit LED voltage display, onboard relay (SRA-12VDC-AL), and dedicated Start/Stop buttons (启动/停止), it provides precise voltage-based charge cutoff and reconnect control — perfect for solar charging systems, UPS, and battery maintenance setups.

Key Features

• Model: XH-M603 V1
• 3-digit white LED display for real-time voltage readout
• Relay: SRA-12VDC-AL (20A/14VDC, 20A/125VAC)
• Start (启动) and Stop (停止) push buttons
• Onboard 330µH power inductor
• Screw terminal block for battery and load connections (+/− input & output)
• Adjustable charge cutoff and reconnect voltage via onboard trimmers
• Red LED power indicator
• Compact blue PCB with mounting holes

Specifications

• Input Voltage: 12V–24V DC
• Relay Rating: 20A @ 14VDC / 20A @ 125VAC
• Display: 3-digit white LED (voltage)
• Control: Automatic charge ON/OFF via relay
• Charge Cutoff Voltage: Adjustable
• Reconnect Voltage: Adjustable
• Dimensions: ~94 × 68mm

Applications

• Solar panel battery charge control
• Lead-acid / Li-ion battery maintenance
• UPS and backup battery systems
• Automatic battery charger cutoff
• 12V/24V battery protection circuits