Device is 12-15 years old and everything works fine on the battery system. The tracks need a good cleaning but all works. I want to eliminate the batteries to ensure the unit works when it is required to work. Sometimes the chair is not parked in the proper charging station and when they go...
To answer the battery change question is easy. These are rechargeable lead acid batteries. About the size of motorcycle batteries. The chair does not get used often enough since it is a small congregation but we do need it to work when it is required. Replacing the batteries with a PS takes...
OK motor will surge up to 16-17 amp to get started depending on where on the stairs it is. Once running in a straight line it seems to be a constant 10 - 11 amp draw. Again I think a 25 amp PS should work for this application less someone sees a flaw in my logic (or lack there of :-p)
I will go back and run some more tests, all I did was get peak load today. I will see what current draw is during a straight run. I know my basic electric theory but it is testing my memory skill set. I do appreciate all the feed back from this forum though :approve:
OK I ran a test today, the unit will draw 16amp with a load on it going up hill. That explains why the 8amp PS would protect it self and shut down. So I will look into a 25+amp PS which is should provide about 600 watts of power. Hoping this is the right solution for this application.
What is the 9.8 value in the formula? The rate is much slower more like 1 m in 20 seconds but will run some tests today when church is over. Thanks for all the input
I ill check the current draw with the batteries, the motor has a spec of 4amp max which is why I got an 8amp PS, but there is output wattage considerations and a 200 watt PS is not enough to drive the chair with a load on it. Not sure how to determine the proper output wattage required for a PS
Manufacturer was my first stop. They do not have a supported solution for this since it is not within their design spec and they want you to continue to buy batteries. Like I said, I have tested this with a 200 Watt power supply and it works fine but not with a load on the chair. I am not...
We have a battery operated chair lift for seniors at our church. I am looking to replace the on board batteries with a DC power supply. The unit has 2 small 12 volt batteries in series to provide 24Vdc to power the chair. The motor is a 24Vdc 4 amp motor. I had put in a 24Vdc 200 watt power...