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Automate voltage-based charging control with the XH-M604 DC 6–60V Battery Charging Control Module. Designed for suitable DC storage-battery systems, this digital module allows you to set the voltage at which charging starts and the voltage at which charging stops.
The built-in digital LED display shows the measured battery voltage, while the push-button interface makes it convenient to adjust the charging thresholds. When the configured start or stop condition is reached, the onboard relay switches the charging circuit accordingly.
With its wide advertised DC input range and compact PCB design, the XH-M604 is useful for compatible battery-charging experiments, solar charging setups, workshop projects and other low-voltage DC applications.
Important: This is a voltage-based charging control switch, not a standalone battery charger or a complete battery management system (BMS). Use it with a suitable charger, battery-specific voltage settings and correctly rated wiring.
Wide DC Input Range: Advertised input range of 6–60V DC for compatible charging-control applications.
Adjustable Start Voltage: Set the voltage threshold at which the charging circuit should switch on.
Adjustable Stop Voltage: Set the threshold at which charging should stop.
Digital LED Display: Displays voltage with an advertised precision of 0.1V.
Automatic Relay Switching: Switches the connected charging circuit according to the programmed voltage thresholds.
Button-Based Configuration: Set the charging thresholds using the onboard push buttons.
Compact PCB Format: Approximate dimensions of 81 × 54 × 18mm.
Multiple Project Uses: Suitable for compatible storage-battery, solar-charging and workshop control projects.
Model: XH-M604
Product type: Digital battery charging control module
Advertised input voltage: DC 6–60V
Display precision: 0.1V
Control precision: 0.1V
Advertised voltage tolerance: ±0.1V
Output type: Direct relay-switched output
Control method: Adjustable start and stop voltage thresholds
Display: Digital LED
Controls: Onboard push buttons
Dimensions: Approximately 81 × 54 × 18mm
Mounting-hole diameter: Reported as 3.2mm; verify against the supplied unit
Current rating: Confirm with the supplier before connecting a load
Package contents: 1 × XH-M604 battery charging control module
Suitable DC storage-battery charging systems
Solar-panel battery charging control
Workshop battery-charging projects
Voltage-based relay switching
DIY electronics and energy projects
Compatible lead-acid or lithium battery setups when the correct charging thresholds and charger are used

The module supports separate charging-start and charging-stop voltage settings. Configure both thresholds according to the battery manufacturer's specifications and the charging system being used.
Before installation, identify the input, battery and relay/output terminals from the markings or verified wiring diagram supplied with your unit. Check polarity and wiring carefully before applying power.



This module does not generate charging power; a suitable external charger or DC source is required.
It is not a replacement for a battery-specific charger, battery management system, cell balancing circuit or required safety protections.
Do not exceed the verified input-voltage range or the relay, PCB, connector and wiring ratings.
Confirm the relay current rating with the supplier before using inductive loads or high-current battery systems.
Use suitable voltage thresholds for the battery chemistry and pack configuration.
Disconnect power before changing wiring or making adjustments.
Package Includes: 1 × XH-M604 DC 6–60V Battery Charging Control Module.