Thunder TDR02021 charger unit with the wired colour display showing voltage, current and charge state
Thunder TDR02021 charger unit with the wired colour display showing voltage, current and charge state
End of the TDR02021 showing the Power, Charging and Fully Charged status lights
End of the TDR02021 showing the Power, Charging and Fully Charged status lights
TDR02021 charger body with the Thunder logo and mounting feet
TDR02021 charger body with the Thunder logo and mounting feet
TDR02021 remote colour display with its cable
TDR02021 remote colour display with its cable
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THUNDER logo

Thunder TDR02021 20A DC to DC Charger with MPPT Solar

SKU: TDR02021
5.0 (1)
Price
$110.35
Inc. GST. Most orders ship Australia wide for a flat $15.95. Larger or heavier items may cost more.
Buy now, pay later
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Note: This item requires stackable freight due to its size and weight. As a result, shipping costs may increase for each additional unit added to your order. This ensures safe handling and delivery by our courier partners.
Shipping information

Australia wide flat rate shipping is $15.95. Larger or heavier items may cost more; we will confirm when your order is processed. In stock items are dispatched within 1 to 2 business days. Report transit damage within 24 hours with photos so we can lodge a freight claim.

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Thunder TDR02021 charger unit with the wired colour display showing voltage, current and charge state

Thunder TDR02021 20A DC to DC Charger with MPPT Solar

$110.35

Product features

Clearance stock at a clearance price, while stock lasts.

The TDR02021 charges an auxiliary battery at 20 A from the vehicle or from solar. The MPPT input takes up to 300 W of panels at up to 50 V.

It works with vehicle input from 12.2 to 26 V and suits GEL, AGM, lead acid and lithium. For lithium it charges at 14.2 V bulk and holds 13.2 V float. Other types float at 13.8 V. It is IP67 rated and comes with a remote LCD screen with Bluetooth.

Use 30 A fuses or breakers and 6 B&S cable for runs up to 10 m. With a variable voltage alternator, the negative goes to chassis.

Want it fitted? Book in at Albion Park Rail (02) 4257 2636 or South Nowra (02) 4423 5254.

Specifications

  • Charge current: 20 A
  • Vehicle input: 12.2 to 26 V
  • Solar: MPPT, up to 300 W and 50 V
  • Charge stages: 8 from vehicle, 3 from solar
  • Lithium: 14.2 V bulk, 13.2 V float
  • Other batteries: 13.8 V float
  • Suits: GEL, AGM, lead acid, lithium
  • Protection: IP67
  • Display: remote LCD with Bluetooth
  • Size: 190 x 125 x 40 mm
  • Cable: 6 B&S up to 10 m, 30 A fuses or breakers

FAQ

What is the Thunder TDR02021?

A 20 A DC to DC charger with 300 W MPPT solar input, Bluetooth LCD remote and lithium charge profile.

Does it work with smart alternators?

Yes. For variable voltage alternators, run the negative to chassis as Thunder describes.

How big a solar panel can I use?

Up to 300 W and 50 V on the MPPT input.

Can you fit it?

Yes. Book in at either store and we will wire it to suit your setup.