Professional DC-DC battery charger for 24V systems
This advanced, isolated DC-DC battery charger is designed for 24V systems, with a charging current of up to 17 A. It is the ideal solution for vehicles, boats, motorhomes, solar systems, and anywhere reliable, stable, and efficient charging is needed for a secondary battery from a 24V starter or main battery.
The device's galvanically isolated design, smartphone control, and intelligent charging management provide optimal charging characteristics for various battery types while protecting the onboard network and extending battery life.
Main benefits and applications
- Stable 24V–24V DC-DC charging for secondary batteries
- Up to 17 A charging current, suitable for larger consumers
- Galvanic isolation for safe energy transfer
- Smartphone monitoring and settings via Bluetooth
- Suitable for lead-acid, AGM, gel, and LiFePO4 batteries
- Ideal for motorhomes, buses, trucks, boats, construction machinery, and off-grid systems
Intelligent, multi-stage charging
The built-in multi-stage charging controller automatically optimizes the charging process. The device considers the battery type and state, reducing sulfation, mitigating overheating, and contributing to longer lifespan.
- Bulk (fast charging): quickly and efficiently charging the depleted battery with the rated charging current.
- Absorption (saturation phase): maintaining voltage until full capacity is reached, avoiding overcharging.
- Float (trickle charging): maintenance charging that preserves full charge without damaging the battery.
Thanks to intelligent charging management, the DC-DC charger reliably maintains the optimal charge level of the onboard, work, or auxiliary battery over the long term.
Bluetooth connection and smart device control
With built-in Bluetooth, you can easily monitor and configure the charger through a free mobile app. The app allows real-time tracking of charging current, voltage, temperature, and operational status.
- Selecting and customizing charging profiles
- Specific settings for LiFePO4 and lead-acid batteries
- Reviewing logged data and event history
- Wireless firmware updates
Wireless connectivity simplifies commissioning and fine-tuning, allowing the charging characteristics to be optimized without the need for professional assistance.
Isolated DC-DC charger for maximum safety
The advantage of galvanic isolation is that there is no direct electrical connection between the primary (starter or main) battery and the secondary (consumer) battery. This significantly increases safety, reduces noise, and prevents potential ground loops from forming.
- No direct common negative point between the two battery circuits
- Better protection for sensitive onboard electronics
- Reduced risk of damage from incorrect wiring
- Suitable for special industrial and automotive applications
Ideal solution for vehicles and solar systems
The DC-DC battery charger is excellent for situations where the motor-driven generator or other 24V source powers the onboard network. It is particularly useful in motorhomes, construction machinery, trucks, buses, boats, and off-grid solar systems.
- Separation of starter battery and onboard battery
- Providing constant and stable voltage for sensitive consumers
- Efficient energy utilization from generator or solar system
- Reliable charging even with longer wiring or voltage drops
Supported battery types and configuration options
The device is a universal charger compatible with various battery chemistries. Thanks to automatic and manually adjustable charging profiles, it can be flexibly adapted to the existing system.
- Traditional lead-acid starter batteries
- AGM and gel batteries
- Maintenance-free, sealed lead-acid batteries
- Modern LiFePO4 (lithium iron phosphate) batteries
By setting the appropriate charging voltage and current, overcharging can be prevented, available capacity can be increased, and premature wear of the batteries can be reduced.
Protection and reliability
The DC-DC charger features a multi-level protection system to ensure the safety of the vehicle, onboard network, and batteries. The built-in electronics continuously monitor operational parameters and limit or stop charging if necessary.
- Short-circuit protection
- Overheating protection with temperature-dependent current limiting
- Overvoltage and undervoltage protection
- Reverse polarity protection with appropriate fusing
The robust construction and quality components ensure long lifespan, even in environments exposed to vibration, shock, and extreme temperatures.
Easy installation and integration
The charger's design facilitates installation in most vehicles and systems. Screw connectors, clearly visible connection points, and detailed documentation allow for quick and safe installation.
- Selecting a suitable location with good ventilation
- Input connection to the 24V source (e.g., generator, main battery)
- Output connection to the consumer or service battery
- Incorporating fuses according to recommendations
- Initial configuration and testing via Bluetooth
The device, combined with other system components (e.g., solar charge controller, inverter, battery monitoring), creates a complex yet flexible power supply system.
Why is it worth using such a DC-DC battery charger?
- Reliable charging in 24V systems, even over long wires
- Creating an independent secondary battery circuit for consumers
- Intelligent battery management and longer battery lifespan
- Galvanically isolated DC-DC conversion for greater safety
- Flexible integration into vehicles, boats, and off-grid solar systems
If you are looking for a reliable and efficient solution for the intelligent and safe charging of your 24V batteries, this isolated DC-DC battery charger is an ideal choice for both everyday and professional use.
