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 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

🔋220W power for fast charging

€ 311.74

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Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔌 Charge smarter, not harder — stay powered and connected everywhere!

ADAPTIVE 3 STAGE CHARGING - Optimizes battery health for both lead acid and lithium types.
COMPACT ISOLATED DESIGN - Safe, space-saving installation with electrical isolation for peace of mind.
POWER PACKED 18 AMP OUTPUT - Delivers robust current for rapid and reliable battery charging.
SEAMLESS BLUETOOTH CONTROL - Monitor and program your charger remotely via smartphone app.
SCALABLE PARALLEL CONNECTIVITY - Connect unlimited units to boost charging capacity effortlessly.

The Victron Energy Orion-Tr Smart 12/12-Volt 18 amp 220-Watt DC-DC Charger is a professional-grade, Bluetooth-enabled charger designed for both lead acid and lithium batteries. Featuring adaptive 3-stage charging and isolated circuitry, it ensures fast, safe, and efficient power delivery. Its scalable parallel connection capability and remote monitoring via Bluetooth make it a must-have for modern mobile power management.

Specifications

ASIN	B0851TPKV7
Amperage	18 Amps
Battery Charge Time	2 Hours
Best Sellers Rank	#31,976 in Automotive ( See Top 100 in Automotive ) #111 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
Compatible Devices	Car batteries, boat batteries, lead acid batteries, lithium batteries
Connector Type Used on Cable	Screw Terminal
Current Rating	18 Amps
Customer Reviews	4.6 4.6 out of 5 stars (901)
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
Manufacturer	Victron Energy
Mfr Part Number	ORI121222120
Model Number	ORI121222120
Number of Items	1
Number of Packs	1
Output Voltage	12 Volts (DC)
Specification Met	UL
Unit Count	1 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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Great experience from order to delivery. Highly recommended!

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€ 311.74

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered 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 Slovakia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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Good experience, but the tracking updates could be better.

2 months ago

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