Strong Portable Jump Box With Long Cables For 24V Battery System In Motorhome RV

Published 01/28/2026

Question:

Hi! I’ve got a motorcoach with a 24V system and want something purpose-built, not a workaround. Any suggestions?

asked by: Denise

Expert Reply:

Hey Denise! You’re thinking about this the right way.

For a motorcoach with a 24V battery system, the Projecta Intelli-Start 3,000A jump box # VX55NR is designed exactly for that application. It’s not just “compatible” with 24V - it’s intended for regular use on 24V gas and diesel vehicles, which is why it’s so common in fleet and coach environments. It also has plenty of amperage for a strong punch of cranking power, and very long cables.

Do you use this primarily for travel or storage starts?

expert reply by: Andrew N