Power & Solar8 min read

REDARC vs Enerdrive: Which DC-DC Charger Is Better?

The two biggest names in Australian DC-DC chargers go head-to-head.

Last updated: January 2026

Quick Picks

Best Overall

REDARC BCDC1250D DC-DC Charger

~$549

Best Value

Enerdrive DC40 DC-DC Charger

~$499

Budget Choice

Projecta IDC25 DC-DC Charger

~$299

A DC-DC charger takes power from your vehicle's alternator and uses it to properly charge your caravan's auxiliary battery. Modern vehicles have smart alternators that don't output consistent voltage, and direct wiring can undercharge or damage lithium batteries.

We break down the key differences between REDARC and Enerdrive to help you decide.

Detailed Reviews

Best Overall

REDARC BCDC1250D DC-DC Charger

4.9

~$549

Capacity

50A DC / 25A Solar

Accuracy

9-32V input

What We Love

+Rock-solid reliability
+Green power priority - uses solar first
+Excellent thermal management
+Australian made with local support

What Could Be Better

-Premium price tag
-Basic LED display only
-25A solar limit may restrict larger setups

Best For: Caravanners who want to install it once and forget about it for years.

Check Price at Amazon AU Check Price at REDARC Direct

Best Value

Enerdrive DC40 DC-DC Charger

4.7

~$499

Capacity

40A DC / 40A Solar

Accuracy

9-32V input

What We Love

+40A solar input - higher than REDARC
+Excellent value - similar features, lower price
+Optional Bluetooth monitoring
+Quality build from trusted brand

What Could Be Better

-40A DC vs 50A - slightly lower alternator charging
-Not quite as established as REDARC
-Bluetooth costs extra

Best For: Caravanners who want premium quality without paying the REDARC premium.

Check Price at Amazon AU Check Price at My Generator

Budget Choice

Projecta IDC25 DC-DC Charger

4.3

~$299

Capacity

25A DC only

Accuracy

12V input

What We Love

+Half the price of premium options
+Good for smaller battery banks
+Simple installation
+Widely available

What Could Be Better

-Lower 25A output means slower charging
-No solar input - need separate regulator
-Less sophisticated charging profile

Best For: Budget builds, smaller battery banks, or as a backup charger.

Check Price at Amazon AU Check Price at Supercheap Auto

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