This professional DC-DC charger is designed for dual-battery systems in vehicles or boats where the alternator and the start battery are used to charge the service battery.

A configurable 3-stage charge algorithm provides an adaptive bulk, absorption, or float modes to keep your 12V lead-acid or Lithium service battery in top condition. Alternatively, a fixed voltage can be chosen.

Features include engine running and shutdown detection, remote on/off switch capability for manual or BMS control, and Bluetooth® technology to monitor charging status in real-time, view historical data, or program via a Bluetooth® enabled Smartphone, tablet or laptop.

In addition, the charger can also double as a stable power supply to power 12V devices in your vehicle, such as a fridge/freezer, which can automatically disconnect power at a pre-defined voltage to avoid the service battery going flat.

Safety features include overload, over-temperature, and short circuit protection, and multiple units can be paralleled to increase the output current. Non-insulated.

FEATURES:
• 3-stage charge algorithm
• Suits 12V Lead-acid or Lithium batteries
• Supports regular & smart ECU controlled alternators
• Bluetooth® enabled 
• Remote on-off capability

SPECIFICATIONS
Input Voltage: 10-17VDC
Under Voltage Shutdown: 7V
Under Voltage Restart: 7.5V
Output Voltage: 12.2V (nominal), 10 to 15V (Adjustable)
Output Current: Up to 30A (nominal), 40A (10s)
Short Circuit Output Current: 60A
Efficiency: 87%
No Load Input Current: <80mA
Standby Current: <1mA
Screw Terminals: 16mm2 (AWG6)

Note: A replacement green terminal block is available separately as HM3122