I'm following this design here: https://shdesigns.org/gcellchg.html
only two changes I plan to do is because this is for a LED emergency lighting kit It's being connected to a 12V 17 Ah battery, with 3 LED's driven by a 350 mA driver.
OK so the relay as long as the charger is on the leds will be off, power fails and they come on.. that's simple... however I don't want to run the risk of having the SLA go under 11.6 V so how can I have it automatically disconnect the load when the voltage hits that point?
I was thinking about adding a analog panel voltage meter to the project box.
only two changes I plan to do is because this is for a LED emergency lighting kit It's being connected to a 12V 17 Ah battery, with 3 LED's driven by a 350 mA driver.
OK so the relay as long as the charger is on the leds will be off, power fails and they come on.. that's simple... however I don't want to run the risk of having the SLA go under 11.6 V so how can I have it automatically disconnect the load when the voltage hits that point?
I was thinking about adding a analog panel voltage meter to the project box.