Thunder 20 AMP DC-DC Charger

8 Reviews | Q&A

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Product Description

Thunder 20 AMP DC-DC Charger, 1 year warranty. Easy to install, the Thunder DC to DC charger is the smart way to charge your auxiliary battery, no matter your vehicle. The Thunder DC-DC Charger utilises a unique pulse charging algorithm with the intelligence to determine the best charge rate for your auxiliary battery (excluding lithium).

Features:

  • MPPT solar regulator will regulate solar panels at maximum efficiency capable of up to 300W of solar @ 25V
  • 20A output to charge your auxiliary battery while driving
  • Automatically switches to the solar input when the vehicle battery is turned off or main battery drops to 12.2V
  • Splash resistant (not IP rated)
  • Easy to read and comprehensive LED display
  • Simple to install – 4 mounting holes and 4 easy-to-use wiring studs
  • Rate of charge starts to decrease at 50 degrees and will fully cut out at 80 degrees

Easy to install, the Thunder DC to DC charger is the smart way to charge your auxiliary battery, no matter your vehicle. Utilising a unique pulse charging algorithm with the intelligence to determine the best charge rate for your auxiliary battery (excluding lithium), this charger is the perfect addition to any vehicle requiring the management of a dual battery setup.

Thunder helps take you places you’ve never been before, making adventure more affordable and accessible for 4WD enthusiasts. Designed for the working adventurer, Thunder products have been tested and developed to handle anything you can throw at them without breaking the bank.

This product is also known as - model number TDR02020

Ashdown Ingram Product Manual

Specifications

SKU TDR02020

Brand Thunder

GTIN 9315275901640

Warranty Period: 1 Year

Product Category Battery Chargers

Output Current Rating (Amps) 20

Model TDR02020

Battery Range 18 to 250Ah

Output Fuse Rating Minimum 30A

Float 13.8V

Output 20A

Maximum Solar Watt Input 300W Note: Exceeding 300W of Solar will damage the Thunder DC-DC charger

Input Fuse Rating Minimum 30A

Output System Voltage 12V

Input Voltage 12.2V - 17V Note: If voltage increases over 17V the Thunder DC-DC will shut off, reset will be needed.

Charger Voltage 12V

Net Weight (kg) 1.5

Solar Input Voltage Range 13V-25V

Standby Current 3mA

Charging Voltage 13.1V - 15.2V (stops charging when alternator or vehicle battery below 12.2V)

Operating temperature range 0°C to 60°C (current derates after 60°


Customer Reviews

A good unit and good value Review by
Yet to install. But the specifications provide all I need.
(Posted on 12 September 2022)
Excellent Review by
Does everything it is supposed to. Works great.
(Posted on 24 August 2021)
Haven't set up as yet. Review by
Haven't set unit up as yet, but it does look and feel that it has been well manufactured.
(Posted on 20 July 2021)
Exactly what I needed. Review by
I needed a product that would limit a 14.2 V 165A alternator supply to 20A to charge two caravan batteries while driving so that the fridge would not drain the caravan battery when selected to DC while travelling long periods of time between 230VAC supplies.
(Posted on 29 July 2019)

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Product Q&A

Ask Us a Question
  • What size battery charger do I need for my lead acid battery I have in my camper?

    A good battery charger rule of thumb for charging a lead acid battery, is using a charger with output current (amps) of 10-20% of the battery total stored capacity (Ah).

    So, for example if the battery is 12V 100Ah, the charger need to be minimum of 10A and maximum of 20A.  Often splitting the difference at 15% (so a 12V ~15A charger) is a good option. Happy charging!

  • Is this still compatible with all modern smart alternators?

    HI There,

    This DC DC charger is designed to be used with smart alternators. There should be no issue whatsoever.

Warranty

    For details relating to this product's warranty CLICK HERE

Delivery

    For details relating to our delivery process CLICK HERE

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