--- product_id: 231905882 title: "Orion-Tr Smart DC to DC Charger (Bluetooth) - 12/12-Volt 18 amp 220-Watt - Battery Charger for Dual Battery Systems - Isolated" brand: "victron energy" price: "VT66914" currency: VUV in_stock: true reviews_count: 13 category: "Victron Energy" url: https://www.desertcart.vu/products/231905882-orion-tr-smart-dc-to-dc-charger-bluetooth-12-12 store_origin: VU region: Vanuatu --- # 18A high-efficiency charging Bluetooth smart monitoring Compatible with lead acid & lithium Orion-Tr Smart DC to DC Charger (Bluetooth) - 12/12-Volt 18 amp 220-Watt - Battery Charger for Dual Battery Systems - Isolated **Brand:** victron energy **Price:** VT66914 **Availability:** βœ… In Stock ## Summary > πŸ”Œ Power your adventures smarter, not harder. ## Quick Answers - **What is this?** Orion-Tr Smart DC to DC Charger (Bluetooth) - 12/12-Volt 18 amp 220-Watt - Battery Charger for Dual Battery Systems - Isolated by victron energy - **How much does it cost?** VT66914 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/231905882-orion-tr-smart-dc-to-dc-charger-bluetooth-12-12) ## Best For - victron energy enthusiasts ## Why This Product - Trusted victron energy brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Scalable Power Boost:** Connect multiple units in parallel to amplify output power as your energy demands grow. - β€’ **Smart Bluetooth Control:** Monitor and adjust charging parameters in real-time via VictronConnect app for ultimate convenience. - β€’ **Plug & Play Installation:** User-friendly screw terminals make setup quick and tool-freeβ€”get powered up without hassle. - β€’ **Effortless Dual Battery Mastery:** Seamlessly charges your service battery from your vehicle or boat alternator, ensuring power on the go. - β€’ **Universal Battery Compatibility:** Optimized for both lead acid and lithium batteries, future-proofing your power setup. ## Overview The Victron Energy Orion-Tr Smart DC to DC Charger delivers a robust 18 amps at 220 watts, expertly managing dual battery systems with isolated, three-stage charging. Featuring built-in Bluetooth, it offers real-time monitoring and control via smartphone, supports both lead acid and lithium batteries, and allows parallel connections for scalable power. Designed for easy installation with screw terminals, it’s the professional choice for reliable, efficient battery charging on the move. ## Description Buy Victron Energy Orion-Tr Smart DC to DC Charger (Bluetooth) - 12/12-Volt 18 amp 220-Watt - Battery Charger for Dual Battery Systems - Isolated: Battery Chargers - desertcart.com βœ“ FREE DELIVERY possible on eligible purchases Review: Great, Simple 12/12 Charger for RV Lithium Upgrade - These things aren't as "smart" as some of the other Victron stuff - for example you cannot limit its max output current, but it's simple and works great. Since it cannot be limited I went with the 12/12 18A instead of the 12/12 30A to ensure I don't blow 12V aux fuses when the batteries are low. We upgraded the batteries in our Jayco 312BHOK to LiPo4 batteries and I wanted to make sure the trailer was "adapted" instead of worrying about back feeding or charging issues. I simply disconnected the Aux Charging leg of my 7 way from the trailer, ran it to the input side of the 12/12 18A, connected the - input leg to the ground coming off the 7 Way, and then ran the +/- outputs directly to my battery bus bars with a 30 amp breaker on the positive leg. It pretty much worked out of the box with one minor adjustment needed for my 2500 CTD Tow Vehicle - I had to change the Alternator detection from "Smart Alternator" to "Standard Alternator", but that was it. It detected that it was charging lithium batteries on its own and it does isolate the camper from the tow vehicle. Doing it this way I am limited to 18A of charge current from the my truck, but that's more than enough to run my 12V fridge going down the highway. We don't really do any boondocking or dry camping so I liked this solution of being able to tow it with any truck rather than using a bigger charge controller with extra dedicated high amperage 12V plugs that would limit me to only being able to charge with my truck towing it. Review: Perfect for charging trailer battery from tow vehicle - You probably already know that the 7 pin tow connector that is standard when towing a travel trailer is useless for charging the trailer's batteries - given the distance from the tow battery to the trailer battery you are lucky to get a trickle charge at best. So you need a DC-DC charger to do the job and I chose the 18 amp Victron to charge our 100Ah travel trailer battery. I wired in an 8 gauge hot wire from the tow vehicle's battery (a Jeep JKUR) back to the hitch and used a pair of 50amp connectors and ran a second hot wire from the hitch back to the Victron and then the battery. I ran 10 gauge black wire to the frame on both vehicles off the connectors. It all works perfectly, and I can monitor the state of charge from the tow vehicle using the Bluetooth app. You can program the voltages for each charging stage for any battery type and program an auto-shut-off so you don't drain the tow vehicle's battery if you stop the motor. All in all I'm very happy - the Jeep has a 160 amp alternator and doesn't seem to notice the load at all. Should you go big and up it from 18 amps to 30 or 40 amps? Well, if you have a big alternator and more battery capacity then yes, that would be a good idea. Of course you'll have to install big wire which costs more than my 8 gauge - I'd go 1/0 for 30 amps or more. In terms of how long it takes to recharge the battery, well it has been on float when we arrive at our next destination after a few hours driving. One time I just idled at a campsite to charge - while not as quick or fuel efficient as a generator, it will certainly get you by in a pinch and make a generator quite optional in many cases. ## Features - PROFESSIONAL DC TO DC CHARGER: The Orion-Tr Smart DC-DC Charger is a professional charger that uses three stages to efficiently and safely charge your batteries. - DUAL BATTERY CHARGING: The Victron DC to DC charger is ideal for vehicles or boats where the alternator and start battery are used to charge the service battery. - BUILT-IN BLUETOOTH: The DC to DC charger can be monitored and cotrolled with smartphone or tablet via Bluetooth and the VictronConnect App. This allows you to see the charger's status and make adjustments as needed. - FLEXIBLE POWER SOLUTION: The DC DC charger is suitable for both lead acid and lithium batteries and unlimited multiple units can be connected in parallel to increase output power. - EASY TO INSTALL: The screw terminals provide a convenient and easy installation process, eliminating the need for specialized tools. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0851TPKV7 | | Amperage | 18 Amps | | Battery Charge Time | 1 Hours | | Best Sellers Rank | #32,525 in Automotive ( See Top 100 in Automotive ) #176 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 Amps | | Customer Reviews | 4.6 4.6 out of 5 stars (798) | | Input Voltage | 12 Volts (DC) | | Item Dimensions D x W x H | 2.8"D x 7.3"W x 5.1"H | | 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 | | Output Voltage | 12 Volts (DC) | | Warranty Description | Warranty | ## Product Details - **Brand:** Victron Energy - **Color:** Blue - **Item Weight:** 1.2 Kilograms - **Output Voltage:** 12 Volts (DC) - **Product Dimensions:** 2.8"D x 7.3"W x 5.1"H ## Images ![Orion-Tr Smart DC to DC Charger (Bluetooth) - 12/12-Volt 18 amp 220-Watt - Battery Charger for Dual Battery Systems - Isolated - Image 1](https://m.media-amazon.com/images/I/813L8K7ZUuL.jpg) ## Questions & Answers **Q: This unit has been triggering my RV's low voltage proection, likely from random spikes. Anyone have an idea on how to disable it?** A: 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. **Q: 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?** A: 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. **Q: Can I connect the input and output ground together?** A: 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. **Q: I'm looking to find a dc-dc charging solution that also accepts solar input. i'd rather have victron vs redarc or ctek?** A: I use two separate devices. Solar is in series so the input ranges up to 100 volts. It’s nice seeing both via Bluetooth. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great, Simple 12/12 Charger for RV Lithium Upgrade *by J***H on November 29, 2024* These things aren't as "smart" as some of the other Victron stuff - for example you cannot limit its max output current, but it's simple and works great. Since it cannot be limited I went with the 12/12 18A instead of the 12/12 30A to ensure I don't blow 12V aux fuses when the batteries are low. We upgraded the batteries in our Jayco 312BHOK to LiPo4 batteries and I wanted to make sure the trailer was "adapted" instead of worrying about back feeding or charging issues. I simply disconnected the Aux Charging leg of my 7 way from the trailer, ran it to the input side of the 12/12 18A, connected the - input leg to the ground coming off the 7 Way, and then ran the +/- outputs directly to my battery bus bars with a 30 amp breaker on the positive leg. It pretty much worked out of the box with one minor adjustment needed for my 2500 CTD Tow Vehicle - I had to change the Alternator detection from "Smart Alternator" to "Standard Alternator", but that was it. It detected that it was charging lithium batteries on its own and it does isolate the camper from the tow vehicle. Doing it this way I am limited to 18A of charge current from the my truck, but that's more than enough to run my 12V fridge going down the highway. We don't really do any boondocking or dry camping so I liked this solution of being able to tow it with any truck rather than using a bigger charge controller with extra dedicated high amperage 12V plugs that would limit me to only being able to charge with my truck towing it. ### ⭐⭐⭐⭐⭐ Perfect for charging trailer battery from tow vehicle *by M***R on October 19, 2021* You probably already know that the 7 pin tow connector that is standard when towing a travel trailer is useless for charging the trailer's batteries - given the distance from the tow battery to the trailer battery you are lucky to get a trickle charge at best. So you need a DC-DC charger to do the job and I chose the 18 amp Victron to charge our 100Ah travel trailer battery. I wired in an 8 gauge hot wire from the tow vehicle's battery (a Jeep JKUR) back to the hitch and used a pair of 50amp connectors and ran a second hot wire from the hitch back to the Victron and then the battery. I ran 10 gauge black wire to the frame on both vehicles off the connectors. It all works perfectly, and I can monitor the state of charge from the tow vehicle using the Bluetooth app. You can program the voltages for each charging stage for any battery type and program an auto-shut-off so you don't drain the tow vehicle's battery if you stop the motor. All in all I'm very happy - the Jeep has a 160 amp alternator and doesn't seem to notice the load at all. Should you go big and up it from 18 amps to 30 or 40 amps? Well, if you have a big alternator and more battery capacity then yes, that would be a good idea. Of course you'll have to install big wire which costs more than my 8 gauge - I'd go 1/0 for 30 amps or more. In terms of how long it takes to recharge the battery, well it has been on float when we arrive at our next destination after a few hours driving. One time I just idled at a campsite to charge - while not as quick or fuel efficient as a generator, it will certainly get you by in a pinch and make a generator quite optional in many cases. ### ⭐⭐⭐⭐⭐ Perfect to charge a lithium battery in a boat *by J***A on February 27, 2026* Works great on my boat. You can even see what it’s doing in the app without any issues at all. Victron knows what they’re doing! ## Frequently Bought Together - Victron Energy Orion-Tr Smart DC to DC Charger (Bluetooth) - 12/12-Volt 18 amp 220-Watt - Battery Charger for Dual Battery Systems - Isolated - Victron Energy SmartSolar MPPT Solar Charge Controller (Bluetooth) - Charge Controllers for Solar Panels - 100V, 30 amp, 12/24-Volt - Victron Energy SmartShunt Battery Monitor (Bluetooth) - Victron Smart Shunt - 6.5V-70V, 500 amp --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/231905882-orion-tr-smart-dc-to-dc-charger-bluetooth-12-12](https://www.desertcart.vu/products/231905882-orion-tr-smart-dc-to-dc-charger-bluetooth-12-12) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-04-23*