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

Victron Energy Orion-Tr Smart DC to DC Charger (Bluetooth) 12/12V 30A 360W

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 power for dual battery systems

1457.99 DT

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Description

🔌 Power your adventures smarter, not harder.

SCALABLE POWER BOOST - Connect multiple units in parallel to amplify output and meet growing energy demands.
TOOL FREE INSTALLATION - Screw terminals simplify setup—get powered up without the hassle or extra tools.
SMART BLUETOOTH CONTROL - Monitor and adjust charging settings effortlessly from your smartphone with VictronConnect.
SEAMLESS DUAL BATTERY CHARGING - Keep your start and service batteries perfectly balanced for uninterrupted power on the go.
UNIVERSAL BATTERY COMPATIBILITY - Optimized for both lead acid and lithium batteries, future-proof your power setup.

The Victron Energy Orion-Tr Smart DC to DC Charger delivers a robust 30A and 360W output, expertly managing dual battery systems with a three-stage charging process. Featuring built-in Bluetooth, it offers real-time monitoring and control via the VictronConnect app. Compatible with lead acid and lithium batteries, it supports parallel connections for scalable power and boasts easy installation with screw terminals—ideal for professionals and enthusiasts seeking reliable, smart energy management on the move.

Specifications

ASIN	B07ZKG396Y
Amperage	30 A
Best Sellers Rank	#31,526 in Automotive ( See Top 100 in Automotive ) #160 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 (844)
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
Number of Items	1
Output Voltage	12 volts_of_direct_current
Unit Count	1 Count
Warranty Description	Warranty

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TrustScore 4.5 | 7,300+ reviews

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1457.99 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Customer service was outstanding when I had questions about the product.

2 days ago

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

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