Buck Converter to DC to DC converter - Step Down to 48v - Help Finding

[JD McGyver]

Hello,
I have several EG4 Lifepower 48v server rack batteries.
Looking to use one of these to extend the battery for a smaller Portable Solar Power Station (Oukitel/FFPower P2001).
It takes 500W Max with 12-48V 15a input.
The Lifepower 48v outputs 51.2 to 56v (to the best of my knowledge), which will fry the p2001.
Can not seem to locate a suitable solution. Can you folks help?
As a minimum, it would need to take anything 48-56+ V and convert down to 48V or slightly lower.

Are there any adjustable units that are both a boost and step-down converter? I do not mind spending more for something that can be used for other tests.

Thank you.

 

[timselectric]

It takes 500W Max with 12-48V 15a input.

Is that a hard limit or just a nominal voltage range.
I would verify that with the manufacturer.
If nominal, you are good to go.

 

[JD McGyver]

I was told it was a hard limit.

 

[DIYrich]

Victron Orion-TR 48/48-8 will do 380watts stackable if you want more watts.