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-DC Charger 12/12V 30A 360W 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

📱Built-in Bluetooth for smart control

🔋360W isolated power for safe charging

R8081

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Description

🔌 Power up smart, stay charged smarter!

DUAL BATTERY DYNAMO - Seamlessly charges service batteries from alternator and start battery
TOOL FREE INSTALLATION - Screw terminals make setup quick and hassle-free for busy pros
SMART BLUETOOTH CONNECTIVITY - Monitor and control charging via VictronConnect app anytime, anywhere
TRIPLE STAGE CHARGING MASTERY - Optimizes battery health with professional 3-stage charging
UNIVERSAL BATTERY COMPATIBILITY - Supports lead acid and lithium batteries with scalable parallel setup

The Victron Energy Orion-Tr Smart DC-DC Charger delivers 30A and 360W isolated power with advanced 3-stage charging, perfect for dual battery systems in vehicles and boats. 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. Easy screw terminal installation makes it a professional-grade, user-friendly solution for reliable, efficient battery charging.

Specifications

ASIN	B07ZKG396Y
Amperage	30 A
Best Sellers Rank	#38,311 in Automotive ( See Top 100 in Automotive ) #186 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 (849)
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 Highlight	Bluetooth Battery Charger for Dual Battery Systems
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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R8081

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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