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.

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Victron Energy Orion-Tr Smart 12/12-Volt 18 amp 220-Watt DC-DC Charger, Isolated (Bluetooth)

Product ID: 333311416

Details

Brand
Victron Energy
Colour
Blue
Item weight
1.2 Kilograms
Output voltage
12 Volts (DC)
Product dimensions
7.1D x 18.5W x

⚡18A high-current output

📶Bluetooth Smart monitoring

🔌Isolated DC-DC charging

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R$2662

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In stock

Sold byAmazon BrazilDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Charge smarter, travel farther — stay powered with Victron’s Bluetooth-enabled DC-DC charger!

POWERFUL 18 AMP OUTPUT - Delivers robust 220W charging to keep your 12V batteries optimized on the go.
EXPANDABLE PARALLEL SETUP - Connect unlimited units in parallel to scale up your charging power without limits.
SEAMLESS BLUETOOTH CONTROL - Monitor and program your charger remotely via Bluetooth for ultimate convenience and precision.
COMPLETE ELECTRICAL ISOLATION - Protects your vehicle and trailer batteries by isolating circuits, preventing backfeed and damage.
UNIVERSAL BATTERY COMPATIBILITY - Supports both lead acid and lithium batteries, adapting effortlessly to your power needs.

The Victron Energy Orion-Tr Smart 12/12-Volt 18 amp 220-Watt DC-DC Charger is a compact, isolated charger designed for professional-grade battery management. Featuring adaptive 3-stage charging and Bluetooth Smart connectivity, it supports both lead acid and lithium batteries. Its scalable parallel capability and built-in isolation ensure safe, efficient charging for vehicles and trailers, making it a must-have for millennial professionals who demand reliable power on every journey.

Specifications

ASIN	B0851TPKV7
Amperage	18 Amps
Battery Charge Time	2 Hours
Best Sellers Rank	#37,371 in Automotive ( See Top 100 in Automotive ) #133 in Battery Chargers
Brand	Victron Energy
Built-In Media	Victron Energy Orion-Tr Smart 12/12-Volt 18 amp 220-Watt DC-DC Charger Isolated (Bluetooth)
Color	Blue
Colour	Blue
Connector Type Used on Cable	Screw Terminals
Current Rating	18 Amps
Customer Reviews	4.6 out of 5 stars 1,779 Reviews
Input Voltage	220 Volts
Item Dimensions D x W x H	7.1D x 18.5W x 13H centimeters
Item Type Name	Victron Energy Orion-Tr Smart 12/12-Volt 18 amp 220-Watt DC-DC Charger Isolated (Bluetooth)
Item Weight	1.2 Kilograms
Item weight	1.2 Kilograms
Manufacturer	Victron Energy
Mfr Part Number	ORI121222120
Model Number	ORI121222120
Output Voltage	12 Volts (DC)
Output voltage	12 Volts (DC)
Product dimensions	7.1D x 18.5W x 13H centimeters
Specification Met	UL
Specification met	UL
Unit Count	1 Count

Reviews

H**O

Top

16.03.2026

J**H

Great, Simple 12/12 Charger for RV Lithium Upgrade

29.11.2024

L**D

Conforme a la description

5.11.2024

C**.

As advertised

14.11.2025

K**E

Mycket bra laddare

Väldigt bra produkt som kom snabbt och fungerar utmärkt. Inbyggd bluetooth möjliggör konfiguration av dom olika inställningarna. Det går att köra produkten som laddare och strömkälla och man kan välja när den skall sättas igång, med mera. Väldigt nöjd!

24.09.2024

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R$2662

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