L
lentildude
I have a cheepish 12v 4amp car battery charger with led bargraph
for bat voltage. (brand projecta )
Question is it is a 12v charger, voltmeter reads 11.5v with no load.
Car batteries are 13.8v, how is a lower voltage going to top up a car
battery? I have some older batteries in the garage but they are
sitting on 12v. Battery chargers 11.5v aint gonna do a thing?? right??
Opening it up it has no adjustment, just 2 diodes, a thermal fuse and
leds with different zener diodes to display voltage in 1/2 v
increments.
Maybe I should build a proper charger from scratch, anyone have any
good, simple reliable circuit links? BTW I assume those desulphators
dont work, silicon chip had one a while back.
for bat voltage. (brand projecta )
Question is it is a 12v charger, voltmeter reads 11.5v with no load.
Car batteries are 13.8v, how is a lower voltage going to top up a car
battery? I have some older batteries in the garage but they are
sitting on 12v. Battery chargers 11.5v aint gonna do a thing?? right??
Opening it up it has no adjustment, just 2 diodes, a thermal fuse and
leds with different zener diodes to display voltage in 1/2 v
increments.
Maybe I should build a proper charger from scratch, anyone have any
good, simple reliable circuit links? BTW I assume those desulphators
dont work, silicon chip had one a while back.