Victron 12V/12V 30A Isolated DC-DC Battery Charger

Victron Energy

MSRP: $287.00
$243.95
(Save $43.05)
SKU:
VTR-121230-I
Shipping:
Free Shipping
Voltage:
12V
Amps:
30A
Battery Type:
Lithium
Battery Type:
SLA/AGM
DC to DC:
Yes
Automatic:
Yes
Maintainer:
Yes
Marine:
No
Onboard:
Yes
Sub-Category:
Electronics
Type:
DC-DC Charger
Input Voltage:
12V
Output Voltage:
12V
Adjustable Output:
Yes
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Product Description

Smart 12V-12V DC-DC Charging for Dual-Battery Systems

The Victron Orion-Tr Smart 12/12-30 DC-DC Charger is a professional-grade 30 amp (360W) charger designed for modern dual-battery systems in vans, RVs, overland rigs, and boats. It takes unstable alternator output and converts it into a programmable three-stage charger—helping protect your starter battery while properly charging your house or service battery bank.

With fully programmable charging profiles, built-in Bluetooth connectivity, and support for both lead-acid and lithium batteries, this compact charger gives you precise control over how your system charges. It is an ideal choice when you want reliable, efficient charging that matches the quality of the rest of your electrical system.

Important: This isolated model is for applications where the grounds are not shared. This is more common in marine setups that don't share a chassis ground. For common ground systems like vehicles and RV's that use the chassis as a shared ground, a Non-Isolated DC-DC Charger will be needed.

  • Adaptive 3-Stage Charging – Uses bulk, absorption, and float stages to optimize charging based on battery state of charge, helping extend overall battery life.
  • Bluetooth Smart Monitoring – Connects to the Victron app so you can view charger status, adjust settings, and update firmware from your phone or tablet.
  • Lead-Acid and Lithium Compatible – Supports common AGM, gel, flooded, and LiFePO4 batteries, making it a flexible choice for upgrades and mixed fleets.
  • Parallel-Ready Design – Multiple units can be wired in parallel when your system requires more than 30A of DC-DC charging capacity.
  • Rugged, Compact Construction – A small housing with screw terminals make it easy to integrate into tight spaces in vehicles and marine installations.

Charge Confidently with the Victron 12/12-30A

If you are building or upgrading a serious DC system and want something you can monitor, tune, and expand as your power needs grow, the Victron Orion-Tr Smart 12/12-30 offers a professional, future-ready solution backed by a trusted brand in off-grid and marine power. The Victron Orion-Tr Smart 12/12-30 Isolated DC-DC Charger is a programmable 30 amp (360W) DC to DC adaptive 3-stage charger with built-in Bluetooth. For use in dual battery systems in vehicles or on boats where the alternator and the starting battery system are used to charge 12 volt house batteries.


Victron 12/12-30 Specs
Input Voltage 10-17V
Adjustable Output
Voltage Range
10-15V
Max Continuous
Charging Amps
30A
Length 5.1" (130mm)
Width 7.3" (186mm)
Height 3.2" (80mm)
Weight 3 lbs


For additional specs see the 12/12-30 Datasheet


VictronConnect App

The unit can be monitored and programmed via Bluetooth and can be remotely controlled via a remote on/off switch.

Victron Connect App Apple Link Victron Connect App Android Link Victron Connect App MAC Link Victron Connect App Windows Link


Victron 12/12-30 Isolated Charger Manual

VictronConnect App Manual

Warranty Information

5 Year Limited Warranty