12V Battery Charging Control Module XH-M603 – Digital Auto Cut-off & Overcharge Protection for Lead-Acid & Lithium

Overview

The XH-M603 Automatic Battery Charging Control Module is a programmable voltage-sensing relay designed to automate the charging process. Unlike simple chargers that keep pushing current even when a battery is full, this module monitors the battery’s real-time voltage. You can set a Lower Limit (when the charger should turn ON) and an Upper Limit (when the charger should cut OFF). It’s an essential safety component for 12V systems, ensuring your battery never enters a dangerous overcharged state.

Key Features

• Digital Precise Control: Features a bright 3-digit LED display that shows current battery voltage and allows for easy calibration.

• Fully Adjustable: Set your own custom start and stop voltages (e.g., start at 11.5V, stop at 14.4V).

• Heavy Duty Relay: Equipped with a 10A/20A relay (model dependent) capable of handling most standard battery chargers.

• Memory Function: Settings are saved in the internal memory; even if power is lost, your custom voltage limits are preserved.

• Universal Compatibility: Works perfectly with 12V Lead-Acid, Gel, AGM, and even 3S Lithium-Ion battery packs.

Technical Specifications