Renogy 12V 40A DC-DC battery charger front view

Renogy 12V 40A DC-DC Battery Charger

$186.99
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Renogy 12V 40A DC-DC battery charger front view
  • Renogy 12V 40A DC-DC battery charger front view
  • Renogy 12V 40A charger with starter and auxiliary battery illustration
  • Renogy alternator-running detection illustration
  • Renogy 40A charger terminal and RS485 port layout
  • Renogy charger battery-type setting illustration
  • Renogy charger supplier protection and certification graphic
  • Renogy 12V 40A charger supplier dimensions and overview
  • Renogy 12V 40A DC-DC battery charger front view
  • Renogy 12V 40A charger with starter and auxiliary battery illustration
  • Renogy alternator-running detection illustration
  • Renogy 40A charger terminal and RS485 port layout
  • Renogy charger battery-type setting illustration
  • Renogy charger supplier protection and certification graphic
  • Renogy 12V 40A charger supplier dimensions and overview
Renogy 12V 40A DC-DC Battery Charger

Renogy

Renogy 12V 40A DC-DC Battery Charger

$186.99

Check fitment before ordering
Match the year, make, model, trim and engine in the product details. Review mounting requirements and vehicle modifications. Ask us about this part.

Eligible returns within 30 days of receipt. Items must be unused, with tags and original packaging. Contact Lee Mods before sending anything back. Lee Mods pays return shipping for eligible U.S. returns; no restocking fee. See Returns & Exchanges for full conditions.

The Renogy 12V 40A DC-DC Battery Charger supports charging for auxiliary battery systems used in vehicle and overland builds.

  • 12V, 40A DC-to-DC charger
  • Renogy reports up to 94% charging efficiency
  • Supports smart and traditional alternator charging systems; verify the installation requirements in the Renogy manual
  • Remote system monitoring via the app

Confirm battery chemistry, alternator compatibility, wiring and installation requirements before purchase. This is a power-system component; vehicle-specific fitment is not implied.

SKU: RBC40D1U-G3-US.

Availability: Contact Lee Mods to confirm current supplier stock before ordering. Online checkout is unavailable until availability is confirmed.

Ships directly from Renogy. Renogy estimates 7–10 business days for in-stock orders. Availability can change and stock is reserved only when the supplier order is placed.

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Product reference & ordering help

Manufacturer & part identification

Renogy

Use the SKU for your selected option when contacting us.
OptionSKU / part reference
StandardRBC40D1U-G3-US
Vehicle compatibility

Read the application years, model, trim, engine and exclusions in the description above. A make-level collection or product recommendation alone does not confirm fitment.

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Installation & specifications

Review the manufacturer’s specifications and installation notes above. Confirm required mounting hardware, tools and modifications before ordering. If instructions are not supplied, contact us with the part reference.

Shipping expectations

Processing and delivery vary by product, supplier and destination. Contact us to confirm timing for your part before planning an installation.

Shipping & delivery information
Manufacturer warranty

Coverage and exclusions vary by manufacturer and part. Review the supplied product documentation or ask us for the applicable terms.

Warranty information