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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Orion-Tr Smart DC-DC Charger 12/12V 18A 220W Isolated

Product ID: 231905882

Details

Brand
Victron Energy
Color
Blue
Item Weight
1.2 kg
Output Voltage
12
Product Dimensions
2.8"D x 7.3"W

⚡18A high current output

📱Built-in Bluetooth for smart control

🔋Compatible with lead acid & lithium

$332.46

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Description

🔌 Charge smarter, not harder — stay powered and connected wherever you go!

TOOL FREE INSTALLATION - Screw terminals simplify setup—get professional-grade performance without the hassle.
POWER PACKED 18 A OUTPUT - Delivers rapid, efficient charging to keep your dual battery system always ready.
EXPANDABLE POWER NETWORK - Connect unlimited units in parallel to scale up charging capacity as your energy demands grow.
SEAMLESS BLUETOOTH MONITORING - Control and monitor your charger remotely via VictronConnect app for ultimate convenience.
UNIVERSAL BATTERY COMPATIBILITY - Works flawlessly with both lead acid and lithium batteries, future-proofing your setup.

The Victron Energy Orion-Tr Smart DC-DC Charger is a professional-grade 12V to 12V charger delivering 18 amps and 220 watts of isolated power. Designed for dual battery systems in vehicles and boats, it features built-in Bluetooth for real-time monitoring and control via smartphone. Compatible with lead acid and lithium batteries, it supports parallel connections for scalable power and offers easy installation with screw terminals. Trusted by professionals and rated 4.7 stars by over 900 users, it ensures efficient, safe, and flexible battery charging on the go.

Specifications

ASIN	B0851TPKV7
Amperage	18 A
Battery Charge Time	1 hours
Best Sellers Rank	#36,602 in Automotive ( See Top 100 in Automotive ) #181 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
Connector Type Used on Cable	Screw Terminals
Current Rating	18 A
Customer Reviews	4.7 4.7 out of 5 stars (901)
Input Voltage	12 volts_of_direct_current
Item Dimensions D x W x H	2.8"D x 7.3"W x 5.1"H
Item Highlight	Bluetooth Battery Charger for Dual Battery Systems
Item Type Name	Victron Energy Orion-Tr Smart 12/12-Volt 18 amp 220-Watt DC-DC Charger Isolated (Bluetooth)
Item Weight	1.2 kg
Manufacturer	Victron Energy
Mfr Part Number	ORI121222120
Model Number	ORI121222120
Number of Items	1
Output Voltage	12 volts_of_direct_current
Warranty Description	Warranty

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TrustScore 4.5 | 7,300+ reviews

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$332.46

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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