• Home
  • /
  • 4WD
  • /
  • Field Tested :: Renogy DCC30S Solar Charge Controller

Field Tested :: Renogy DCC30S Solar Charge Controller

Dual-isolated batteries have been a fixture of overland vehicles for decades, and in recent years, the price of solar and lithium batteries has dropped enough to become the go-to choice. Correctly isolating batteries is essential to preserve the vehicle starting battery, and keeping batteries fully charged is a necessity for modern camp life.

Since 2010, Renogy has been a leader in solar panels, off-grid chargers, and battery systems. In recent years, they’ve created a range of products specifically for use in vehicles, including a DC/DC charger with MPPT solar charging.

This all-in-one unit combines the functions of a DC/DC charger and a solar charge controller into one lightweight, silent package that works without any intervention. When the vehicle is running, current from the vehicle alternator and solar are both used to charge the auxiliary battery, whether lithium, AGM, or old-school flooded batteries.


Input is prioritized from solar to minimize load on the alternator and engine. Solar charging is completed by a three-step maximum power point tracking (MPPT) system, the most efficient possible. When the vehicle is switched off, batteries are isolated while the unit charges the auxiliary from solar before trickle charging the starter battery, keeping it topped off without the need to run the engine.

LED indicator lights display the current mode, and a companion Bluetooth module and app allow for detailed monitoring and logging of energy flow in the system. Units are available in both 30- and 50-amp versions.

$290+ | renogy.com

Our No Compromise Clause: We carefully screen all contributors to ensure they are independent and impartial. We never have and never will accept advertorial, and we do not allow advertising to influence our product or destination reviews.

Read more: Old Versus New: A Real World Perspective , Dan Grec

Dan Grec is an adventurer, snowboarder and photographer based in Whitehorse, Yukon, Canada. Growing up in Australia gave Dan a passion for travel and exploration, and years of family road trips around the continent re-enforced that passion. In 2011 Dan set out in his Jeep Wrangler and drove 40,000miles from Alaska to Argentina, passing through some 16 countries over 22 months. You can connect with Dan, and learn more about his developing adventures at: The Road Chose Me