Hi guys i have a simple 12v lead acid battery charger.it consists of 13.5ac transformer & a bridge rectifier.rectifier output is directly conected to the battery.i'm charging 12v/7A batteries.
without the battery i measured the charger output voltage it shows 12.3vDC.
Question1
when i conect the battery it will immediately rise upto 15v & above.is this normal?
Question2
if i use a voltage regulator calculated 13.6v on the output of the bridge rectifier will the voltage rise to 15v & above or will it maintain 13.6v & never go above 13.6v?
What i want to do is show battery voltage using some led's.i can make a circuit but it will measure the rise up voltage 15v not the actual battery voltage.that's my main problem.