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📍 East Tamaki - 212c Burswood Dr. 📞 0800 315 3887 | Open 6 Days
📍 Mt Albert - 648 New North Rd. 📞 0800 315 3897 | Open 6 Days
📍 Hamilton - 87a Greenwood St. 📞 0800 315 3877 | Open 6 Days

📍 East Tamaki - 212c Burswood Dr. 📞 0800 315 3887
📍 Mt Albert - 648 New North Rd. 📞 0800 315 3897
📍 Hamilton - 87a Greenwood St. 📞 0800 315 3877


Original price $319.00 - Original price $319.00
Original price
$319.00 - $319.00
Current price $319.00


DC to DC Battery charging
Ideal for caravans, motorhomes, boats or anywhere dual battery
12 volt to 12 volt charging is required.

Model No: PTDC12V30A
Charge Type 3 Stage Charge (Bulk, Absorption, Float)
Input Voltage 12.8 to 16 VDC
Charging start Voltage 13.2 VDC
Min start Voltage ( Aux Battery) 1.5 VDC
Battery Type Selectable Gel / Calcium / Lead Acid – AGM
Soft start Yes
Equilisation Automatic
Output Voltage (Absorption) 14.3V Gel / 15.3V Cal / 14.7V LA-AGM
Output Voltage (Float) 13.3V Gel / 13.7V Cal / 13.7V LA-AGM
Output Current 30 Amp
Battery Range (Deep Cycle) 36 – 600 A/h
Battery Range (Automotive) 300 – 800 CCA

A DC to DC charger overcomes the problems associated with a VSR (Voltage sensitive relay) or split charging
systems that can struggle to correctly charge an auxiliary battery due to voltage drop or different battery
chemistries etc.
A VSR operates as a switching device that connects the auxiliary battery to the main vehicle battery when a
specific voltage has been reached on the main battery, since both batteries are now connected the vehicle
attempts to charge both batteries from the vehicles charging system. When the vehicle is turned off the auxiliary
battery is disconnected from the main battery so the auxiliary circuits don’t drain the main battery, and enough
charge is maintained in the main battery to restart the vehicle.
A Powertrain DC to DC charging system still offers the same switching technology as a VSR along with a
microprocessor controlled 3 Stage battery charger/ booster built into one unit. This ensures your auxiliary battery
can now be fully charged using the correct smart charging algorithm, overcome voltage drop due to long cable
lengths, and still leave enough charge in the main battery to restart the vehicle.
• A simple push of a button to select the battery
chemistry GEL, Calcium or Lead Acid / AGM to suit
the auxiliary battery type. Once selected, the charger
remembers the chemistry selected, and won’t change
unless you change the chemistry again.
• Three (3) Stage smart charging which comprises
of BOOST, ABSORPTION and FLOAT ensures that
Optimal charging is achieved using safe charging
algorithms guaranteeing longer battery life and more
usable power.
• “Voltage drop” over long cable lengths between
cranking and auxiliary batteries is a thing of the
past. The Powertain DC to DC charger will boost the
supply voltage to ensure your auxiliary battery can be
recharged to 100%. Perfect for caravans or 5th wheeler
• This units micro-processor controller will protect
against overcharging the auxiliary battery and ensures
the main battery is not discharged below 12.4 volts.
This will ensure the main battery is left with enough
voltage to start the vehicle.

Warranty: 12 Month Manufacturer Warranty