Qoltec 24V Battery Balancer for 2 x 12V Batteries | 5A | AGM GEL LiFePO4 | LED

Unlike basic voltage equalizers that only trickle a few milliamps, the Qoltec 51078 actively transfers up to 5A between two series-connected 12V batteries, keeping your 24V bank perfectly balanced and dramatically extending its service life. It works with AGM, GEL, flooded lead-acid, and LiFePO4 chemistries, making it a universal solution for solar storage, marine, RV, and off-grid systems.

Highlights

• Active balancing current of 5A for fast equalization
• Supports AGM, GEL, flooded lead-acid, and LiFePO4 batteries
• LED status indicator for quick visual confirmation
• Wide operating temperature range from -20°C to +55°C
• Protection against reverse polarity, short circuit, over-voltage, and under-voltage
• Screw terminal connections for secure wiring
• Compact ABS housing for easy surface mounting

In daily use

Install the balancer across two 12V batteries wired in series for 24V. It begins balancing when either battery exceeds 13.5V and stops at 14.4V, preventing overcharge. If one battery drops below 10V, the unit disconnects to protect the bank. With self-consumption under 3mA, it won't drain your batteries when idle. The LED confirms active balancing at a glance.

Full specifications

• System voltage: 24V DC
• Battery configuration: 2 x 12V series connected
• Balancing current: 5A
• Supported chemistries: AGM, GEL, flooded lead-acid, LiFePO4
• Start balancing voltage: >13.5V per battery
• Over-voltage disconnect: 14.4V per battery
• Under-voltage disconnect: 10V per battery
• Self-consumption: <3mA
• Operating temperature: -20°C to +55°C
• Protection: reverse polarity, short circuit, over-voltage, under-voltage
• Indicators: LED status
• Connection: screw terminal blocks
• Housing: ABS plastic
• Recommended battery capacity: 20Ah - 300Ah
• Equalization efficiency: >95%
• Max differential voltage: 0.2V
• Installation: surface mount

Final note

Keep your 24V battery bank in perfect harmony with the Qoltec 51078 balancer — a smart investment for longer battery life and reliable performance.