Will this be ideal on our 24v power vessel to supply the 12v led lights, sound system, vhf etc? or too powerful

That is the purpose of a device like this. 70Amps is just the max it can output. The output is variable based on the live load. Hopefully that helps.

Are there any issues charging a 24v lifepo4 to a 12v lifepo4 with this charger?

I use the Orion 24/12-25 to bulk charge my 12.8 volt nominal LiFePO4 battery bank from my other 25.6 volt nominal LiFePO4 battery as a supplement to the MPPT Solar Charge Controllers with good results

This unit is listed as 70 amps, is that for the output (12volts)?

Yes, that is the full load rating for the 12VDC output

One reviewer states having issues charging 24v batteries from an alternator with the 12/24 model. Can this be safely and effectively done?

This is not the right device for that.

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Victron Energy Orion 12/24V 20A DC-DC Converter Non-Isolated, High power

Product ID: 82086530

Details

Brand
Victron Energy
Colour
Blue
Input voltage
12 Volts (DC)
Item dimensions L x W x H
19.6 x 8.9 x
Item weight
0.93 Kilograms

⚡20A high output current

🔋Boosts 12V to 24V DC voltage

🔧Up to 5 units parallel for scalable power

₨115866

Duties & taxes included

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Sold byAmazon Sri LankaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔌 Charge smarter, travel farther — power that keeps pace with your adventure!

SEAMLESS CONTROL - Remote on-off connector lets you toggle power with low-current switches or engine controls—no bulky switches needed.
MAXIMIZE EFFICIENCY - Achieves an impressive 93% conversion efficiency to minimize energy loss and extend battery life.
SCALABLE POWER BOOST - Parallel up to five units to multiply output current, perfect for demanding setups and future-proofing your system.
POWER UP YOUR JOURNEY - Effortlessly converts 12V to 24V with a robust 20A output, powering your devices on the go.
VERSATILE COMPATIBILITY - Ideal for camper vans, boats, trucks, and more—charge power stations, LED strips, dashcams, and beyond with confidence.

The Victron Energy Orion 12/24V 20A DC-DC Converter is a high-efficiency, non-isolated step-up converter designed to boost 12V DC input to 24V DC output at 20 amps. With 93% conversion efficiency, remote on-off capability, and the option to parallel up to five units, it delivers scalable, reliable power for vehicles, marine, and off-grid applications. Compact and durable, it’s a must-have for professionals and adventurers seeking efficient, on-the-go charging solutions.

Specifications

ASIN	B01BF5BU20
Best Sellers Rank	6 in Car Audio Power Inverters
Box Contents	Victron Energy DC-DC Converter
Brand Name	Victron Energy
Colour	Blue
Customer Reviews	4.4 4.4 out of 5 stars (133)
Global Trade Identification Number	08719076022763
Input Voltage	12 Volts (DC)
Item Dimensions	19.6 x 8.9 x 6.6 centimetres
Item Type Name	Orion 12/24-20 DC-DC Converter IP20
Item Weight	0.93 Kilograms
Manufacturer	Victron Energy
Manufacturer Part Number	ORI122420020
Model Number	ORI122420020
Number of Items	1
Number of Outlets	1
Output Voltage	30 Volts (DC)
Plug Type	Type M
Power Source	Battery Powered
Product Warranty	Other

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