Clayton Power 600W Supercharge DC-DC Converter (CD1803) image 1 Clayton Power 600W Supercharge DC-DC Converter (CD1803) image 2

Clayton Power 600W Supercharge DC-DC Converter (CD1803)

£459.99(inc VAT) £706.99
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The Clayton Power 600W Bidirectional DC-DC Converter transforms how motorhomes and campervans charge auxiliary batteries whilst on the move. This compact unit handles both 12V and 24V systems, delivering up to 40A at 12V or 20A at 24V through its intelligent 5-stage charging algorithm. It's bidirectional, meaning power flows both ways - charging your leisure battery from the alternator when driving, and providing emergency jump-start capability when your vehicle battery runs flat. The jump-start function activates with a 3-second press of the front button, giving you 5 minutes of reverse charging to get your engine started.

Installation suits anyone upgrading from basic split-charge relays or fitting lithium batteries that need proper charging profiles. The unit works with all battery types - lead acid, AGM, gel and lithium - automatically detecting your system voltage on startup. It's compatible with modern smart alternators found in Euro 5 and Euro 6 vehicles, something that's caused headaches for many motorhome owners trying to charge leisure batteries properly. Measuring 222mm x 110.5mm x 40mm and weighing 620g, it fits in tight spaces where larger 50A or 60A units won't go. The M12 connector handles activation via your ignition signal (D+ wire), and CAN bus communication lets it integrate with compatible power systems.

One limitation to note is the passively cooled design, which means you're limited to 40A maximum on 12V systems compared to fan-cooled units that might push 60-70A. For most weekend tourers and full-timers with battery banks up to 300Ah, this output proves plenty for daily driving recharges. The converter includes undervoltage and overvoltage protection, automatically shutting down if input drops below 11.5V or exceeds 17V on 12V systems. Sleep mode draws under 1mW when the vehicle's off, so there's no parasitic drain on your starter battery during storage.

Clayton Power 600W Supercharge DC-DC Converter (CD1803) Features


  • Designed to work together with Clayton Power Lithium Power Supply II devices to provide a complete power solution for mobile applications
  • High level of protection against overvoltage, undervoltage, overcurrent, and overtemperature conditions, ensuring safe operation even in harsh environments

Specifications
  • Supply Voltage: 10.9V - 32V
  • Input Current: 0-45A
  • Output Voltage: 14.4V or 28.8V
  • Output Current: 0-40A
  • Output Control: 5 stage charge
  • Wakeup Input Range: 0-36V
  • Wakeup Input (Deactivate): <3.0V
  • Wakeup Input (Activate - Delayed 15sec): >4.0V
  • Power consumption (Idle): <1.6 W
  • Power consumption (Sleep): <1 mW
  • Operating temperature range: -25 to 50 °C
  • Weight: 620 g
  • Dimensions: 222 x 110.5 x 40 mm

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If you’ve changed your mind about keeping your purchase, please return it in its original condition with proof of purchase and we’ll exchange or refund it. Unless faulty, this should be within 100 days of receiving your order. By original condition, we’d expect this to mean that you’ve kept packaging and labels, and that the item is undamaged and unused.

For further information of how to return your item, please visit the "Returning an Unwanted/Faulty/Damaged Item" section on our Help Page.
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