Dumb Question

So are you saying I could wire the lift directly to the charger to use it?

If the lift has electronic circuitry, (for example a speed controller) it may need a regulated voltage.

If the lift control is just a switch, it should work, as the charger is able to power DC motors.

Can you describe the controller and what it does?

If you want to try it, have someone knowledgeable look over your wiring and explain the charger voltage is unregulated - not clean DC.

I have concerns with your experience level. That being said this is not a complicated project. If you have tried starting a car with booster cables and didn't cause damage during the process then you have knowledge of what you are trying to do. If you fried either car electrical system in your booster attempt then don't attempt this.

If you are going to use the charger to power the lift, then I recommend the charger has some safety features. Some old chargers had no protection circuits. The circuit breaker in the house tripping was the only indication there was a problem. The safety circuits in the charger are providing protection. Yeah you can depend on tripping the house breaker but don't. If the lift draws to much current your expecting the charger protection circuits to work and shut the system down.

If you screw up the polarity of the connections between the devices one or both of the devices will give up their magic smoke that allows them to work. Your not guessing or working on an I think this is right. Be sure.

The charger needs to be capable of supporting the load. Check the specifications. Ensure the cables are sufficient to handle the current load. Like I indicated you need a minimum of 10 awg but that is the electrical code in my area. Ensure the switch is rated to handle the load. The connections have to be mechanically and electrically sound. All connections need to be well insulated.  Your not just twisting two wires together and wrapping it with gaff tape.

I'm trusting you are not using this around water. This is not a 9V battery your sticking your tongue on. Your talking some pretty serious current that has the potential to do some damage. Don't overlook safety just so you can have it working. The charger is just a fancy power supply it can do the job if done correctly.

I'd be very wary of trying to use just a battery charger to operate the lift. A battery charger is designed to provide a low current (for slow charging) over a long period of time. A car battery is capable of short burst of very high power. It can even melt a spanner if you short out the terminal with one!

I was going to suggest the same as Sean - use a battery for the heavy lifting and a charger to slowly recharge it between uses.

There are devices designed to starts cars from mains power and provide a large amount of power. This may also do the job but is likely to be a more expensive solution.

This really isn't a dumb question. Maybe it's worth changing the title! It also makes it easier for someone to find useful information if they have a similar question.

Hmmm, thank you Shabaz.  I wouldn't want to send Mark in the wrong direction and damage his lift.  Sorry about that, gotta read the details before posting.   Please disregard.

It kinda sounds like the easiest way to do this would be with an external battery and trickel charger, Yes?

mark1054 YES!  Go for the battery and the charger.  It's simple and what the system was designed to use.  I also do not believe that a battery charger will run your lift, but you might try the following item - or something similar.

https://smile.amazon.com/BMOUO-Universal-Regulated-Switching-Computer/dp/B01EWG6YT8

It's not a bench top power supply.  It's just power.  I have one for my ham radio.  I have a 24VDC one that I use for vehicle diagnostics when the starting batteries are dead.  At $20 USD... it's worth trying out.

Yep. Provided you are not deep discharging the battery a trickle charger would do the trick (pun intended).

I have a friend that uses the arrangement to run a radio transmitter to broadcast infrequent short messages. The battery is the radio supply and the trickle charger keeps it working.

Actually they just had to replace the battery after eight years of operation. No heat in the enclosure tends to reduce the life of the battery.