120mm x 38mm tha1248be Delta server fan

99w rated 48v fan

318.19CFM

Battery powered

You will need the fan grill assembly https://makerworld.com/en/models/487600

and the batteries pack

Wire the batteries in series to get 21.6V

power the fan using the 400w DC DC step up converter to convert the 21.6V to 48V

The fan uses 99w so the switch need to be rated for 5A

Battery pack 2P3S variant (x6 18650) https://makerworld.com/en/models/487668 (Reccomended)

Battery pack 1P3S variant (x3 18650) https://makerworld.com/en/models/487623

Related projects:

Powerful 99w mega fan https://makerworld.com/en/models/487975

Portable powerful mini fan https://makerworld.com/en/models/487618

LED spotlight attachment https://makerworld.com/en/models/487592

Car socket attachment https://makerworld.com/en/models/487588

x6 battery holder https://makerworld.com/en/models/487614

battery receptacle snap on https://makerworld.com/en/models/487605

Tools to make the building of the pack easier https://makerworld.com/en/models/487583