How do i protect my alternation from this drawing too much current i have a large lifepo4 battery bank?

That’s exactly the point. If you use it to charge from a flood/AGM starting battery, it will limit the draw to the D.C.-D.C. charger rating. So if you have a 60A alternator, choose 20-30A charger

I dont want my battery to be used to start my rv. does the charger contain a backfeed diode (to prevent power coming from the rv battery)?

A reverse current from the RV battery cannot occur. In addition, the Orion-TR Smart is isolated galvanically separated.

I’ve connected the input terminals to the starter battery and confirmed 14.4 v at the input terminals. Why won’t my unit turn on? Defective unit?

There is a green connector inside the box to connect to the "remote" on the left side of the unit. It cannot run if there is a discontinuity between the 2 pole of this remote.

Does this have a built in battery protect, or do i need to add this separately?

Not sure what you mean. It does monitor voltage levels and you can set specific charging profiles. I believe it may have reverse polarity protection in case you hook up the battery wrong.

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Victron Energy Orion-Tr Smart DC to DC Charger (Bluetooth) 12/12V 30A 360W | Battery Charger for Dual Battery Systems - Isolated

Victron Energy Orion-Tr Smart DC to DC Charger (Bluetooth) 12/12V 30A 360W | Battery Charger for Dual Battery Systems - Isolated

Product ID: 231905883

Details

Brand
Victron Energy
Color
Blue
Item Weight
1600 g
Output Voltage
12
Product Dimensions
3.2"D x 5.1"W

⚡30A high current output

📱Bluetooth smart monitoring

🔋360W isolated dual battery charging

AR$752562

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Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔌 Charge smarter, not harder — power your adventures with Victron Energy!

POWER UP WITH PRECISION - 30A output ensures rapid, reliable charging for your dual battery system.
SCALABLE POWER SOLUTION - Connect multiple units in parallel to boost charging capacity as your energy needs grow.
HASSLE FREE INSTALLATION - User-friendly screw terminals make setup quick and tool-free—get powered up without the wait.
STAY CONNECTED STAY IN CONTROL - Built-in Bluetooth lets you monitor and adjust charging via VictronConnect app anytime, anywhere.
VERSATILE BATTERY COMPATIBILITY - Seamlessly supports both lead acid and lithium batteries for ultimate flexibility.

The Victron Energy Orion-Tr Smart DC to DC Charger delivers 30A and 360W of isolated power, expertly managing dual battery systems with three-stage charging. Featuring Bluetooth connectivity for real-time monitoring and control via the VictronConnect app, it supports both lead acid and lithium batteries. Its scalable design and easy screw terminal installation make it the go-to charger for professionals and enthusiasts seeking reliable, flexible power on the go.

Specifications

ASIN	B07ZKG396Y
Amperage	30 A
Best Sellers Rank	#44,899 in Automotive ( See Top 100 in Automotive ) #219 in Battery Chargers
Brand	Victron Energy
Built-In Media	Victron Energy Orion-Tr Smart 12/12-Volt 30 amp 360-Watt DC-DC Charger Isolated (Bluetooth)
Color	Blue
Connector Type Used on Cable	Screw Terminals
Current Rating	30 A
Customer Reviews	4.4 4.4 out of 5 stars (836)
Global Trade Identification Number	08719076047698
Input Voltage	12 volts_of_direct_current
Item Dimensions D x W x H	3.2"D x 5.1"W x 5.1"H
Item Type Name	Victron Energy Orion-Tr Smart 12/12-Volt 30 amp 360-Watt DC-DC Charger Isolated (Bluetooth)
Item Weight	1600 g
Manufacturer	Victron Energy
Mfr Part Number	ORI121236120
Model Number	ORI121236120
Output Voltage	12 volts_of_direct_current
Unit Count	1 Count
Warranty Description	Warranty

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AR$752562

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered 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 Argentina.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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