12V 60A car battery , maybe dead?

[bourne]

@ Groundloop

I Like it! 

I will defiantly give this a try when I get a chance. 

Seems very simple.

@ GezGin

Have you tried it yet? Hows your sickly battery doing?

[gezgin]

Hi Groundloop , i have build your circuit (with two coil) short time because Bux80,bd139  very hot .(i measured frequency ~100Hz).
and building new design with 4093 osc ~1Khz
but with this circuit needs heat sink output power diods (DSI20-12A) .battery shows 11.1 volts ,with small increasing.

[Groundloop]

@gezgin,

You must have a good heat sink on the power transistor. Please remove the BD139, it is NOT needed
for this circuit and will just make the amplification WAY to high. Can you provide a data sheet (pdf) for
the output diodes you are using?

Groundloop.

[Groundloop]

@gezgin,

You must have a good heat sink on the power transistor. Please remove the BD139, it is NOT needed
for this circuit and will just make the amplification WAY to high. Can you provide a data sheet (pdf) for
the output diodes you are using? Also, where is the third coil L3? This coil is there so that you will NOT
couple the input direct to the output through the diode bridge. If you build the circuit as I described in my
drawing then it will work OK. The input voltage must be around 9 Volt, not 15 as you use. If the oscillator
does not run then invert the wires on the trigger side.

Groundloop.

[gezgin]

Sorry diod is DSEI120-12A
http://pdf1.alldatasheet.com/datasheet-pdf/view/212503/IXYS/DSEI20-12A.html
other : FEP16GT
http://www.fairchildsemi.com/pf/FE/FEP16GT.html
I used heat sink but i didnt find 500 Ohm 3.5Watt resistor(adjustable)
I found 470 Ohm/5Watt power resistor.
Groundloop, what is the time for desulphating with your circuit?
in  Japanes site talking about 4-6 week ,10KHz
Unfortunately my battery voltage drop every day 9-8-7.. maybe new one, good quality need
here scope photo (with 4093 osc)