# Battery charging module XH-M602, 220VAC, display, 0-99.9VDC

> The XH-M602 module automatically maintains battery charge, powered by 220VAC. It monitors battery voltage (0-99.9VDC) and uses a relay (12VDC logic) to switch a charger on/off between set thresholds, adjustable via START/STOP buttons and shown on a display. It does not charge itself, but connects between the charger and the AC supply. Dimensions: 86 x 58 x 24mm.

- Page: https://sigmanortec.ro/en/battery-charging-module-xh-m602-220vac-display-0-999vdc
- Price: 42.20 RON
- Availability: In stock; 1-2 zile
- Reference: 33400 · EAN: 5948404087881
- Category: Electronic components > Modules for Batteries > Charging and Balancing Modules
- Specifications: Input Voltage Type: AC
- Package (shipping data): 0.114 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 05:45 (Europe/Bucharest)

## Description

Module for automatically maintaining charged batteries, monitors voltage and controls via relay the charger start and stop between set thresholds. It has a display for quick START STOP display and adjustment, operates at 220VAC with integrated power supply, controls batteries in the range 0-99.9VDC, suitable for UPS, solar systems and industrial applications.
Module that ensures batteries remain charged. The module detects the low battery level (previously set) and commands its charging via the integrated relay until the desired level is reached. The module can ensure the safety of any battery between 3 and 120VDC.
Attention: The module itself does not charge. It is connected between the charger used to charge the battery and the AC power source. The module's power supply is done through 220VAC voltage (N and L IN).
See picture
Power supply voltage: 220VAC
Relay logic voltage: 12VDC
Controllable voltage: 0 - 99.9VDC
Dimensions mm: 86 x 58 x 24mm
Instructions:
Connect a battery up to 99.9V.
Connect to the mains on Phase (L) and Neutral (N). The module operates by converting AC voltage into 12V DC voltage through the integrated transformer and an integrated bridge rectifier.
The module cannot be used as a power supply (it only works together with a battery), meaning it only opens and closes the circuit from the charger to the battery.
Set the discharge threshold (the voltage at which the module will start charging the battery).
Set the charge threshold (the voltage at which the module will stop charging the battery).
Set start voltage: while displaying the battery voltage, pressing the "START" button will display the start voltage. Press for 3 seconds, the display will flash. Use the START and STOP buttons to set the start voltage for charging.
Set stop voltage: while displaying the battery voltage, pressing the "STOP" button will display the stop voltage for charging. Press for 3 seconds, the display will flash. Use the START and STOP buttons to set the stop voltage for charging.
Reset: while the module is on, press START and STOP simultaneously until the display shows "888". The module will be reset to factory settings.