QOLTEC Voltage Balancer for 24V Batteries AGM GEL LiFePO4 5A LCD

The QOLTEC Voltage Balancer for 24V Batteries AGM GEL LiFePO4 5A LCD is an autonomous device designed to manage and equalise voltage differences between two 12V batteries connected in series within a 24V system. Operating without the need for an external 230V mains supply, this unit draws power directly from the connected batteries to maintain system stability and efficiency. It features an integrated LCD display for real-time status monitoring and offers multiple operating modes to suit different maintenance requirements. Housed in a compact, fire-resistant enclosure, it is engineered to prevent premature battery degradation and ensure reliable long-term performance across a wide range of applications.

Advantages

This voltage balancer actively prevents capacity loss and cell degradation by automatically correcting voltage deviations between series-connected batteries. It supports a broad spectrum of battery technologies including AGM, GEL, deep-cycle lead-acid, and LiFePO4, accommodating capacities from 1Ah up to 1000Ah. The maximum equalisation current of 5A ensures swift correction of imbalances. Built-in reverse polarity protection safeguards the circuitry against incorrect wiring, while the clear LCD screen provides immediate visibility of operational states, balancing currents, and active modes. The independent power supply design eliminates the complexity of external grid connections, making it highly versatile for mobile and off-grid setups.

Suitable for

• Balancing two 12V batteries in 24V photovoltaic and solar power installations
• Maintaining battery banks in motorhomes, caravans, and camper vans
• Equalising power storage systems on boats and marine vessels
• Supporting electrical systems in electric vehicles and forklift trucks
• Ensuring longevity in backup and emergency power supply setups

When it may not be suitable

This device is not designed to function with single 12V batteries or battery banks operating at voltages other than 24V using two 12V units in series. It should not be used if the initial voltage difference between the two batteries exceeds 0.2V prior to installation, as excessively mismatched batteries must be manually pre-charged and matched before connecting the balancer.

Key specifications

• System compatibility: 24V systems consisting of 2 x 12V batteries
• Supported battery types: AGM, GEL, Deep cycle lead-acid, and LiFePO4
• Maximum equalisation current: 5A
• Recommended battery capacity: 1Ah to 1000Ah
• Power source: Powered directly from connected batteries without 230V AC mains
• Display type: Integrated LCD screen for operating status and metrics
• Safety feature: Built-in reverse polarity protection

How to use

Before installation, verify that both 12V batteries are of the same type, have identical capacities, and are fully charged with a voltage difference of no more than 0.2V. Ensure the batteries are correctly wired in series to achieve an approximate 24V total system voltage. Connect the black lead to the negative terminal of the entire system, the red lead to the positive terminal of the system, and the middle lead to the connection point between the two batteries. Once powered, use the LCD interface to monitor the operating status and select the desired balancing mode such as automatic, forced, manual, or stop based on the condition of your battery bank.

What to consider before purchase

• Verify that your setup consists strictly of two 12V batteries connected in series to form a 24V system
• Check that your existing batteries fall within the supported chemistry types such as AGM, GEL, or LiFePO4
• Confirm that the total capacity of your battery bank is within the 1Ah to 1000Ah operational range
• Ensure individual batteries are in healthy condition and properly pre-charged before initial connection

Usage recommendations: Regularly check the LCD display to monitor the operational status and balancing current of your battery system. Select the automatic mode for routine maintenance, and utilise the manual or forced balancing modes only when addressing significant voltage disparities or testing the unit. Always disconnect power sources carefully before performing any maintenance on the wiring or battery terminals.