A listed wall pack can support selected loads only within the exact equipment's output, usable capacity, transfer behavior, placement rules, and approved design. A portable-generator hookup is a separate fuel-based option.
Key Takeaways
- AJ Long Electric can include compatible listed battery equipment in the approved scope or connect customer-selected listed equipment.
- Typical installed cost: $2,500-$6,000 portable; $6,000-$15,000+ whole-home.
- Portable generators stay hookup-only. We do not sell generators or do fuel work.
- The written proposal identifies the exact equipment without implying an unsupported manufacturer certification or product relationship.
Wall pack vs portable hookup
A wall pack uses no combustion engine or generator exhaust and can be commissioned to selected circuits when the listed placement, clearance, transfer, and operating requirements are satisfied. A portable generator needs an inlet, listed transfer or interlock equipment, and outdoor operation. Those are two different pages on this site for a reason.
Planning Backup Power for Your Home?
Plan for the next outage with a listed portable-generator hookup or a compatible battery-backup installation. We evaluate the panel, selected loads, equipment, and transfer method before quoting the electrical scope. Call (571) 444-6886 to request an in-home assessment.
Same visit as the panel or the charger
If a $3,500–$7,500 panel upgrade, an EV circuit, and battery work are being considered together, one coordinated design can identify shared panel, routing, control, permit, and access inputs. Any combined-scope cost difference is project-specific and not guaranteed.
Start at home battery wall packs or portable generator hookups.




