Hulk 4x4 12V 25A Fully Automatic DC-DC Battery Charger


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Product Description

Hulk 4x4 12V 25A Fully Automatic DC-DC Battery Charger, 2 Years Warranty


  • Automatic Input Selection: Automatically selects the input, Alternator, Solar, DC, based on the Active input. No manual switching required.
  • Dual Charging Mode: Works with both fixed voltage (standard voltage 12-24V) and variable voltage (Smart Alternators)
  • Ignition Connection: Allows “Low Input Operation” suitable for variable voltage alternators.
  • Multi-Chemistry Charging: Capable of charging a variety of rechargeable batteries, like Lead Acid Wet / Flooded types, GEL, AGM, MF, Calcium and Lithium batteries.
  • Solar MPPT Regulator: Maximises the power available from solar panels even in low light.
  • 7 Stage Intelligent Switch Mode Charging: Unique charging algorithm enhances the life of batteries by ensuring a full charge and conditioning. It also recovers batteries many times faster than an alternator.
  • Wide Operating Range: Vehicle voltage input from 11 – 32 Volt, Solar input is from 9 – 42 Volt and DC input (40amp only) 11 – 32 Volt.
  • Temperature Compensation: Using the temperature sensor, the charger continually adjusts its charge rate to suit the battery temperature protecting the battery from overcharging and overheating.
  • Super Quiet Operation: No internal fan ensures a super quiet operation.
  • Parallel Connection Units: Can be connected in parallel to provide more output when using high output alternators.
  • Optional Terminal Block: Additional accessory that provides ease of wiring when multiple earths are required.
  • Optional Mounting Bracket


  • Built in Battery Isolator: Isolates the main and auxiliary batteries at pre-set parameters preventing the main battery from being drained by the accessories connected to the auxiliary battery.
  • Spark Free: Will not begin charging unless the load is securely fastened, preventing output leads from sparking due to an accidental short circuit.
  • Versatile Installation: IP67 Rating, sealed against dust and water ingress.

Product Brochure

Product Manual


SKU HU6525

Brand Hulk 4X4

GTIN 9316042963311

Warranty Period: 2 Years

Product Category Battery Chargers

Output Current Rating (Amps) 25

Solar Input Voltage Range 9-42V

Voltage 12/24V

Charger Voltage 12V

Power rating IP67 Rating

DC Input Voltage 11-32V (40amp only)

Reverse Polarity Yes

Operating temperature range -20°C to 85°C

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