Trucks and buses often have a significant weight differential between their front and back axels. This differential challenges the ability of mobile columns to remain coordinated as they raise a vehicle. An adequate power source is required to help the columns remain in unison. Three-phase current is the best source for that power. Although it requires cables between the columns, its benefits far outweigh any inconvenience.

Battery power coupled with radio control has gained recent popularity because it eliminates the cables, but both technologies have problems of their own.
  • Batteries are not a source of constant power. They require frequent rechanging.
  • Batteries discharge at varying rates due to the load differential between columns.
  • Low battery power affects the performance of a column.
  • Batteries can go dead in the middle of a lift.
  • Batteries wear out and require replacement.
  • Radio control is subject to interference.
  • The long-term security of current radio control technology is uncertain.
The interconnecting cables on Maha lifts not only deliver consistent power to all columns, they also provide a secure means of communication to keep vehicles level. The few minutes required to connect the cables adds immeasurably to the safety of a mobile lifting system.