garage door opener

Posted by Kon Pik on March 05, 2009, 01:05:13 PM

garage door opener
Hello to all,
I would like to connect my garage door opener to one(or more if needed) solar panel(s). This opener is equipped with a 24volts battery which takes on in case of electricity failure. And the question: What gear do I need to accomplish this task? I suppose that besides the solar panel(s) I will only need wire for the connection. Am I right? I am keen to making small furniture,  repairing my computer etc and I want to try this out. I understand that this might look very primitive to you all, but I see this project as a first step to gradually change to a complete solar system.
Thanks in advance for your help.
kon pik
 

Posted by Jonathan W on March 05, 2009, 03:54:52 PM

Re: garage door opener (Reply #1)
What size batteries it use to open in case of power failure? 2 6.5 amp or 2 13 amp?
 

Posted by Kon Pik on March 06, 2009, 09:37:23 AM

Re: garage door opener (Reply #2)
Quote from: Jonathan Winters on March 05, 2009, 03:54:52 PM
What size batteries it use to open in case of power failure? 2 6.5 amp or 2 13 amp?
Thank you for the prompt reply.
I don't exactly understand what "2 6.5 amp or 2 13 amp" so the specifications of the battery in the user's manual are as follows:
>One battery 24V with charger
>Capacity 1.2Ah, which is enough for 10 openings and
                              closures  of the door
>Amperage 4A, ignition amperage 7.5 A for 3 seconds.
>Operating Voltage: 28V during maximum charge
                   16V during maximum discharge
Do these figures make sense?
 

Posted by Jonathan W on March 07, 2009, 12:07:24 PM

Re: garage door opener (Reply #3)
Quote from: kon pik on March 06, 2009, 09:37:23 AM
Quote from: Jonathan Winters on March 05, 2009, 03:54:52 PM
What size batteries it use to open in case of power failure? 2 6.5 amp or 2 13 amp?
Thank you for the prompt reply.
I don't exactly understand what "2 6.5 amp or 2 13 amp" so the specifications of the battery in the user's manual are as follows:
>One battery 24V with charger
>Capacity 1.2Ah, which is enough for 10 openings and
                              closures  of the door
>Amperage 4A, ignition amperage 7.5 A for 3 seconds.
>Operating Voltage: 28V during maximum charge
                   16V during maximum discharge
Do these figures make sense?

Ya makes sense sounds like a small nickle cadmium pack that uses 20 double AA batteries. I figured it would use 6.5 amp or 13 amp lead acid battery. The answer really is that you would have to replace the battery pack with something larger as I think even a 5 watt panel would overcharge those. IF it uses .12 ah every day for opening once then you would need a very very small panel.

You would need 2 of these in series. http://www.surplusshed.com/pages/item/r3208p.html

But you would have to add a blocking diode.
Might consider doing a larger project. Get 2 large deep cycle 12 volt batteries, wire them into the door opener, buy a 60 watt panel or 2 and an inverter and solar charger. Then throw your tv or something else on it. If the solar bug hits ya, you can go from there. Trying to solar power those nicad packs won't be very fun or helpful. My guess is 2 years after they were installed they would have a hard time opening and closing the door once without going flat. Have you unpluged it and ran the door up and down till it stops working?
 

Posted by Kon Pik on March 07, 2009, 03:01:29 PM

Re: garage door opener (Reply #4)
Thanks very much for your suggestions.
Well, the door doesn't move up&down but slides horizontally. It's made of iron rods and weighs about 200 kg. I haven't tried to unplug and drain the battery. I think I will try the 60W panel procedure and see how it succeeds.
Sincerely.
 
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