This unit has been triggering my RV's low voltage proection, likely from random spikes. Anyone have an idea on how to disable it?

Yes, the same thing happened to me with my 30A Victron dc-dc on my 2021 Ford Transit starter battery. The answer is to use the 18A victory dc-dc charger. I learned this the hard way. Some cars can't handle that draw.

Would it harm this victron 12-12-18 if I mounted it in a pickup truck engine compartment, connectors at the bottom and air space around it?

For good cooling effect, the Oion is designed for vertical mounting only. Other mounting methods may impair cooling and reduce the service life of the product.

Can I connect the input and output ground together?

Yes if not trying to isolate like in a boat for galvanic corrosion. If you don't need the isolation feature just purchase the non-isolated model and save a few dollars. If you already own the isolated model and installing in a RV you can ground both to same ground connection.

I'm looking to find a dc-dc charging solution that also accepts solar input. i'd rather have victron vs redarc or ctek?

I use two separate devices. Solar is in series so the input ranges up to 100 volts. It’s nice seeing both via Bluetooth.

Victron Energy Orion-TR Smart 12/12-Volt 18A 220W DC-DC Isolated Charger (Bluetooth)

Victron Energy Orion-TR Smart 12/12-Volt 18A 220W DC-DC Isolated Charger (Bluetooth)

Product ID: 733554743

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Details

Brand
Victron Energy
Colour
Black
Product Dimensions
7.1D x 18.5W x
Item Weight
1.2 Kilograms
Output Voltage
12 Volts (DC)

⚡18A high current output

📶Bluetooth smart monitoring & control

🔋Compatible with lead & lithium batteries

Description

🔌 Power up smartly, stay connected effortlessly!

PARALLEL POWER BOOST - Connect multiple units to scale output power seamlessly for larger battery banks
BLUETOOTH CONNECTIVITY - Monitor and program your charger remotely via smartphone app for ultimate control
TOOL FREE INSTALLATION - Screw terminals enable quick, hassle-free setup without special tools
ADAPTIVE 3 LEVEL CHARGING - Optimizes battery health and lifespan with smart multi-stage charging
VERSATILE DUAL BATTERY SUPPORT - Perfect for vehicles and boats, efficiently charging service batteries from alternator

The Victron Energy Orion-TR Smart 12/12-Volt 18A 220W DC-DC Isolated Charger is a professional-grade, Bluetooth-enabled charger designed for lead and lithium batteries. It features adaptive 3-level charging, parallel connectivity for increased power, and easy installation with screw terminals, making it ideal for dual battery systems in vehicles and boats.

Specifications

ASIN	B0851TPKV7
Battery Charge Time	1 Hours
Box Contents	Victron Energy Orion-TR Smart
Brand	Victron Energy
Brand Name	Victron Energy
Colour	Black
Current Rating	18 Amps
Customer Reviews	4.7 out of 5 stars 766 Reviews
Input Voltage	12 Volts (DC)
Item Dimensions D x W x H	7.1D x 18.5W x 13H Centimeters
Item Type Name	NT-1100
Item Weight	1.2 Kilograms
Item Weight Unit of Measure	1.2 Kilograms
Manufacturer	Victron Energy
Manufacturer Part Number	ORI121222120
Output Voltage	12 Volts (DC)
Product Dimensions	7.1D x 18.5W x 13H Centimeters

Reviews

M**R

Perfect for charging trailer battery from tow vehicle

19.10.2021

N**N

Bra gör det den ska

Fungerar bra

27.10.2025

S**?

Sehr gut !

Gute Qualität - macht was es soll.

7.10.2025

W**N

Valeu a pena

Um bom produto

9.05.2025

A**O

Super cool!

2.12.2025

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