OP
- Reaction score
- 4
Ok so the plan is: to power the the lighting circuit using a car battery via a pcu, that connected the the a/c via timer circuit, fit a diode to the battery pos, so not to waste electricity recharging the battery with a/c power supply.
Is there a better way to click over to the ac power? I.e. Monitoring the battery status and some sort of automatic switch over once the voltage drops?
Also how do you calculate how long the battery would last, I know I'd need to find out the consumption of that circuit per day, and battery ratings etc but what would the formula look like?
And if I connected the neg post of the battery to the met bar would it tap into the unused neutral current (probably not the right word). Also I suspect something terrible would happens under fault conditions.
Is there a better way to click over to the ac power? I.e. Monitoring the battery status and some sort of automatic switch over once the voltage drops?
Also how do you calculate how long the battery would last, I know I'd need to find out the consumption of that circuit per day, and battery ratings etc but what would the formula look like?
And if I connected the neg post of the battery to the met bar would it tap into the unused neutral current (probably not the right word). Also I suspect something terrible would happens under fault conditions.