isolated

Name: Battery-to-battery charger ORION-TR-SMART / 12 to 48 V / 8 A / isolated
Brand: VICTRON
Price: 259.95 EUR
Availability: InStock
Rating: 4.8888888888889 (18 reviews)

SVB item number: 48634 Manufacturer no.: ORI124838120

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Recommended retail price: €310.59

only €259.95

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VAT inc., ex-works

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Available variants

VICTRON ORION-XS Battery to Battery Charger / 12 V to 12 V / 50 A

€395.08

only €329.95

VAT inc., ex-works

To product

VICTRON ORION-TR SMART Battery to Battery Charger / 12V to 24V / 15A

€273.70

only €229.95

VAT inc., ex-works

To product

VICTRON ORION-TR SMART Battery to Battery Charger / 24V to 24V / 17A

€273.70

only €229.95

VAT inc., ex-works

To product

VICTRON ORION-XS battery-to-battery charger / 12 V to 12 V / 70 A

€476.00

only €399.95

VAT inc., ex-works

To product

VICTRON ORION-XS 1400 Battery Charger / 50 A

€452.20

only €399.95

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VICTRON ORION-TR SMART Battery to Battery Charger / 12V to 12V / 30A

€273.70

only €229.95

VAT inc., ex-works

To product

VICTRON ORION-TR SMART Battery to Battery Charger / 24V to 12V / 30A

€273.70

only €229.95

VAT inc., ex-works

To product

At a glance!

Max. charging current: 8 A

Optional remote display / operation

Bluetooth

Product data

SVB item number 48634
Manufacturer no. ORI124838120
Description VICTRON - ORION-TR SMART 12/48-8A (360W)
Input voltage 8 - 17 V
Output voltage 48 V
Max. charging current 8 A
Device type Battery-to-battery charger
Battery type Lead-Acid, AGM, Gel, Lithium (LifePO4)
Engine running detection Yes
Bi-directional charging No
Optional remote display/operation Yes
Temperature sensor can be connected No
Integrated fan No
Bluetooth Yes
NMEA2000 No
CAN Bus No
Width 186 mm
Height 130 mm
Depth 70 mm
Weight 1.8 kg
IP protection class IP22, IP43
Protection from Short circuit, Overheating, Overloading

Product details

The professional DC-DC charger ORION-TR SMART from Victron is ideal for dual battery systems in which the alternator and the starter battery are used to charge the service battery. The battery-to-battery charger can be monitored via Bluetooth, programmed and controlled via a remote switch.
The ORION-TR-SMART 12-48 is designed for systems in which the starter battery or alternator is based on 12 V, but the consumer side is deliberately designed for 48 V. The B2B charger can also be used as a voltage source.

Bluetooth Smart
Thanks to the Bluetooth function, you can monitor the unit and make changes, settings and software updates via a smartphone, tablet or similar.

Further features at a glance

Suitable for lead and lithium batteries
Adaptive 3-stage charging algorithm: constant current, constant voltage, conservation
Remote switching possible via ON/OFF switch or relay contact
Protected against short circuits
An unlimited number of devices can be connected in parallel
Overtemperature protection: the output current is reduced at high ambient temperatures
Waterproof to IP43
No special tools are required for installation

Please note
The device has isolated battery inputs/outputs.

System example

Technical data

Input voltage	8-17 V
Undervoltage switch-off	7 V
Undervoltage restart	7,5 V
Nominal output voltage	48,2 V
Output voltage setting range	40-60 V
Cont. Output current at rated output voltage	8 A
Short-circuit output current	25 A
Cont. Output power at 25 °C	430 W
Direct current connection	Screw terminals
Maximum cable cross-section	16 mm²
Dimensions (HxWxD)	130 x 186 x 70 mm
Weight	1.8 kg
Galvanic isolation	200 VDC between input, output and housing

Documents

Datasheet

PDF (800,62 KB)

Manual

PDF (3,83 MB)

Product safety

What other SVB customers have to say

100% real reviews

18 customer reviews

4.9 (out of 18 ratings)

5 Stars

(16)

4 Stars

(2)

3 Stars

(0)

2 Stars

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1 Stars

(0)

100% recommend SVB

by Rainer H.

6/25/2026 Verified purchase Variant: 41603

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Top product

Mixed system: 12V starter battery with 24V lithium house battery. The instructions in German are a bit confusing. But everything works perfectly.

Advantages
Max. charging current
Weight
Connection options
Range of functions
Delivery contents
Price/performance ratio
Mounting/Installation
Max. charging power

by Leandro C.

6/16/2026 Verified purchase Variant: 41600 in use on a Bavaria Yachtbau GmbH - Bavaria 36 Cruiser

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Victron a guarantee

Having replaced the old lead-acid batteries with LiFePO4 batteries, I had to manage charging them with the engine's original alternator, which, being insufficiently large, overheated quickly, so I decided to install this DC-DC that allows me to decide how much current to draw from the alternator. All setup and control via cell phone.

Advantages
Max. charging current
Weight
Connection options
Range of functions
Delivery contents
Price/performance ratio
Mounting/Installation
Max. charging power

by Ottmar B.

5/31/2026 Verified purchase Variant: 41600 in use on a Linssen Yachts B.V. - Dutch Sturdy 320 AC

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Charging booster with very good efficiency, charging current continuously adjustable via app

The charging booster is currently being tested during our spring cruise.

So far, it's working perfectly!

I've replaced my lead-acid leisure batteries with three LiFePO4 batteries. The starter battery remains lead-acid.

My charging and power supply setup now consists of:

- 1 x Victron 15A mains charger for the lead-acid battery

- 1 x Victron 30A mains charger for the lithium batteries

- 1 x Victron 15A solar charge controller for the leisure batteries

- 1 x Victron 1212 50 charge booster

- 1 x Ective 300S battery box, 300Ah, approx. 3600W, primarily for mains-powered devices including TV, cool boxes, induction cooktops, Thermomix, contact grill, air fryer, etc.

I'm still working on fine-tuning the settings, because according to the Victron Connect A0, the leisure batteries are usually charged via the 15A charger, which is intended exclusively for the lead-acid starter battery, presumably indirectly. My new charging booster seems to think, even when connected to shore power, that my engine is running and that it should be charging both the starter and house batteries.

What would a skipper's life be without unsolved mysteries...?