I have attached a 12v charging socket that I found on youtube - I am having problems with 12v lead acid batterys, over a period of trickle charging they are degrading and will not hold a charge.
The trickle charger is a 12v 500ma and the powercells range from 12v7ah - 12v22ah
Firstly I want to fuse the unit to stop overload - I assumed this circuit would do it for me with the cut off, what I cant understand is the use of Diodes. With 12v Battery I assume Im look to charge to about 12.4 what Diodes would I need, also how does the circuit actually work - does it know when the Battery reaches 12.4 the cutoff kicks in.....I don't want it constantly kicking in when connected to a 12v charge that surges to 15v
Sorry for so many questions