XH-M602 Battery Charging Controller – Set it once, and let it handle the rest
Are you worried about overcharging your batteries or letting them drain too far? With the XH-M602 module, you simply set your start and stop thresholds once, and the internal relay manages the entire battery charging cycle automatically. No manual monitoring, no risk of damage. It handles voltages from 3.7V to 120V, making it perfect for everything from single Li-Ion cells to 96V solar power systems.
Note: The XH-M602 is a relay-based controller; it monitors voltage and switches your external charging source on or off. It does not generate the charging voltage itself; you will need a separate charger or power supply compatible with your specific battery type.
Why choose the XH-M602 module? (Key Advantages):
- Universal Compatibility — Works with Li-Ion, Li-Polymer, LiFePO4, Ni-Cd, Ni-MH, and Lead-Acid batteries, ranging from 3.7V (single cell) up to 120V (series systems).
- Automatic Relay Control — Set your START and STOP thresholds once, and the module will handle the charging cycle autonomously.
- Precision LED Display — View the exact battery voltage in real-time with 0.1V accuracy, rather than relying on vague percentage bars.
- Perfect for Solar Setups — Protects 24V, 48V, or 72V battery banks from overcharging in photovoltaic installations.
- 3-Second Reset — Simply hold the START and STOP buttons simultaneously until the display shows ‘888’ to revert to factory settings.
- Compact Design — Measuring 89 × 58 × 24 mm and weighing just 111g, it fits easily into control panels, DIY enclosures, or fixed installations.
Performance and Specifications
At the heart of this module is a switching relay that connects or disconnects your charging source based on the real-time voltage measured at the battery terminals. The START threshold defines the minimum voltage at which charging resumes, while the STOP threshold halts the process once the battery reaches your desired level, preventing overcharging without the need for external monitoring. The module is powered directly via 230V AC, making it ideal for fixed installations such as workshops, garages, solar systems, or industrial UPS units.
| Parameter | Value / Detail |
|---|---|
| Model | XH-M602 |
| Monitored Battery Voltage | 3.7V – 120V |
| Common Settable Voltages | 6V, 12V, 24V, 36V, 48V, 60V, 72V, 84V, 96V, 120V |
| Control Type | ON/OFF Relay (Automatic charging cycle) |
| Display | LED, 0.1V accuracy |
| Module Power Supply | 230V AC |
| Compatible Battery Types | Li-Ion, Li-Polymer, LiFePO4, Ni-Cd, Ni-MH, Lead-Acid |
| Main Applications | 12V Automotive, Solar Panels, UPS, Electric Vehicles, DIY |
| Dimensions | 89 × 58 × 24 mm |
| Weight | 111g |
Programming and Usage Instructions
- Set START threshold (charging start): Press and hold the START button for 3 seconds until the value flashes. Use the + and – buttons to set the desired voltage, then confirm by pressing START.
- Set STOP threshold (charging stop): Press and hold the STOP button for 3 seconds until the value flashes. Use the + and – buttons to set the stop voltage, then confirm by pressing STOP.
- Reset to factory settings: Press and hold both START and STOP buttons simultaneously until the display shows 888.
- Battery Connection: Connect the module terminals to your battery, ensuring correct polarity (+ and –). Connect your external charging source to the relay output.
- Operation: Once the STOP threshold is reached, the relay disconnects automatically. When the voltage drops below the START threshold, the relay re-engages to begin a new cycle.
Package Contents
- 1 × XH-M602 Battery Charging Control Module
Frequently Asked Questions
Does this work with a 12V car battery?
Yes. Simply set the STOP threshold to 14.4V (full charge) and the START threshold to 12.0V (minimum discharge), and the relay will manage the charging cycle for any 12V Lead-Acid battery automatically.
Can it be used in solar panel systems?
Yes, this is one of its most common applications. It controls the connection between your charging source (solar panel + regulator) and your 24V, 48V, or 72V battery banks, protecting them from overcharging regardless of solar output fluctuations.
Does the module generate the charging voltage?
No. The XH-M602 is a controller, not a charger. It monitors battery voltage and operates a relay to switch your external charging source on or off. You will need a separate charger or power supply that is compatible with your battery type.
How accurate is the voltage measurement?
The LED display shows voltage with a resolution of 0.1V, which is precise enough to correctly manage charging cycles for all supported battery types, including Li-Ion and LiFePO4 batteries with narrow voltage windows.
Photo Gallery
*****n J**** –
Perfect for managing my solar setup. It prevents overcharging and keeps the batteries healthy.