- Joined Apr 30, 2022
Thanks for your reply.Welcome to AAC!
Pins 4 and 5 are +12V and GND connections.
Measure the voltage across these two points.
What type of battery are you planning on using?
Depending on the battery voltage you will either be constantly charging or discharging the battery. A common solution is to use two diodes from each power source so that only the higher of the two sources will be supplying current to the load.
Yes - I'd just realized that myself... I meant that the COM of the relay is connected to 12v, so NC (2) or NO (1) are powered outputs, so COM on the relay appears to be connected to one side of the relay coil and then to the 12v out.Pin-3 (COM) is connected to pin-5 (GND).
But that won't charge the battery...You might be able to get this to work with just the 12V battery and one diode connected to the 12V and GND, pins 4 and 5.
For starters, I would experiment with two diodes in series with the 12V battery. The reasoning here is that the battery will be in standby mode and will only kick in if you lose AC power.
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