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Battery charger

T

Tractorcedric

Member
Location
Garland. Utah
Battery charger question? I have a 12 volt elevator that lifts me up stairs to a storage over my shop. I have had a battery hooked
to it with a trickle charger. I have an old charger that I think was part of the original elevator. Could I delete the 12 battery
and just use the charger to run the pump and solenoid valve? The charger has a 30 volt gauge on it.
 
First thought is no. But I need more data before I can say for sure either way. You say you have a 12 volt elevator, I assume you mean a 12 volt motor that powers the elevator. If that is true then how much current (amps) does the 12 volt motor draw under full load? Also you say the charger has a 30 volt gauge on it. Is it a 30 volt or is it a 30 amp gauge? What is the continuous current (amps) output of the charger?
 
What you want is a 12v DC power supply.
You will have to measure the amps.
I seriously doubt is you could find a DC power supply that
will meet your demands.
Good luck finding a DC ammeter that will measure
what I think will be a large current.

You may stick with a battery and charger.
 
I tend to agree with the others. It would take quite a battery charger/booster to run the elevator without the battery. If you really need to get rid of the battery, maybe converting the elevator drive to 120V AC would be best.
 
The correct answer is IT DEPENDS ON THE CHARGERS RATING

If it can supply full adequate 100% Duty Cycle current to meet the full load of the elevator YES but I doubt that. More typical is building up adequate stored battery energy sufficient to supply the short term high full load elevator current and then let the battery charger replenish the used up energy over a long term.

John T
 
Probably not. That elevator draws a lot of current. Plus, the output of a battery charger isn't really DC; it's rectified AC, not really what you want to run a DC motor with. If the engineer who designed your elevator could have eliminated the battery from its design, he would have.
 
(quoted from post at 07:04:44 10/05/21) What you want is a 12v DC power supply.
You will have to measure the amps.
I seriously doubt is you could find a DC power supply that
will meet your demands.
Good luck finding a DC ammeter that will measure
what I think will be a large current.

You may stick with a battery and charger.
Click to expand...

-A clamp on multimeter should easily measure the amp draw on the battery.

-Being an elevator you would not want to chance having a power failure when in operation which is likely why it was designed with a stand alone power back up source.

-If the old charger you mentioned was indeed an original part of the elevator it is possible it is more along the line of a power converter similar to what is used in RV's in which case it may have enough output to operate the elevator motor.

-Only way to know will be to check the output rating on the charger and compare it to the ratings on the motor if the data plates still exist.
 
Hey thanks for every ones help on this! Yes I am pretty sure the charger I am trying to use is the one that was on the original lift. I just took the casters and frame off of an Access Master lift. Then just bolted the first section to the block wall. Anyway you guys were right. The charger would set the solenoid and the motor would almost run. So I guess I will leave a battery in place and hook this charger up to it. This charger has a timer on it anyway.
 
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