I made a SLA battery charger from this design here
http://shdesigns.org/gcellchg.html
I spoke to the person that designed it asking about using a relay in it, since this is for lighting when the power goes out I was thinking since the battery would always be on charge why not have it switch over on it's own..
Maybe I have been over thinking things but on a normal day the contact should be open which prevents the LED's from turning on.. when the power goes out the contact closes and the relay closes and the LED's come on.
I put the charger in it's own project box but if I have it right I'd need to hook the relay to the battery directly in series with the LED's right? I was wondering if it's possible to slim everything down to the same box?
You can kinda see what's going on here, the relay in the lower right is not set yet.
Another thing I did not think about is battery voltage and when to turn the lights off before the voltage drops too low.
http://shdesigns.org/gcellchg.html
I spoke to the person that designed it asking about using a relay in it, since this is for lighting when the power goes out I was thinking since the battery would always be on charge why not have it switch over on it's own..
Maybe I have been over thinking things but on a normal day the contact should be open which prevents the LED's from turning on.. when the power goes out the contact closes and the relay closes and the LED's come on.
I put the charger in it's own project box but if I have it right I'd need to hook the relay to the battery directly in series with the LED's right? I was wondering if it's possible to slim everything down to the same box?
You can kinda see what's going on here, the relay in the lower right is not set yet.
Another thing I did not think about is battery voltage and when to turn the lights off before the voltage drops too low.
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