Neil Caulfield: where might i find a rod capacitor? i have a few alternators floating
aroud. I at one point had a streetlight assembly from an accident that
happened nearby, and had something that looked similar to that capacitor
but it may have been a ballast. either way im sure i threw it out
cuchunfletas1: gracias por este video, pero sabes quisiera el diagrama de este circuito
por que se me hace mas facil que el que tienes en tu blog de mayo #14.
breezebro: Richard, I built your Charger/Desulfator and it works great! I used a 45mf
in parallel with a 10mf capacitor. My goal was to recover 9 Dewalt cordless
drill batteries and it did the job. The batteries were 7.2v to 14.4v. These
were batteries I had given up on. They had all been dead for over 2 years
in my shed with the heat and cold. I finished the charging with the Dewalt
charger cause I don't know how to tell when they are fully charged with
your charger, I didn't want to burn them up. Thanks!
g0fvt: I agree with most of your video, however from my experience the heavily
sulphated batteries need extremely low current at first. What seems to
happen is that the current density on sulphated plates is not uniform, so
some localised areas may be gassing early. Over here in the UK the mains is
240v single phase in typical resedential properties so this does get a bit
dangerous. Power factor correction capacitors out of old flourescent light
fittings are ideal for this though.
Tool19672: could you please send schematics of the charger / desulfator to me ?
Muthanna Akram: how does it exactly desulfate the battery?
Mohamed Tabti: is that the desulfator is equipped with a microcontroller or controller to
automate desulfation, if not can you tell me a site where I can find the
shema electronic desulfator a high current equipped microcontroller or
repsolka: @rclewis01 yea right, connected in series each battery will be fully
charged with only 2V...
Lanny Davidson: Why not just use a solar panel as your power source? would be a little more
interesting. Greetings from sunny Jamaica.
TehMG: Capacitors found in microwave ovens are similar in that they are also
oil--filled capacitors, but they are rated for a much higher voltage and
less capacitance than motor run capacitors. As such microwave caps should
work but you'll have to put several in parallel to obtain enough
Rowan1970: Excellent ! If you look at the first battery chargers, they are not much
different. Lead acid prefer choppy charge current to smooth anyhow, and the
modern pulse chargers are little more than PWM power supplies without a
smoothing capacitor. I love the use of recycled parts - well done !
bg0821: hmmm how bout that thanks
Peter mitchell: could you possibly upload the schematics of the desulfator or email them to
me please as i am new at electrics thanks
ln4359: so U can charge the 12V battery you R using in the system? therefore your
12v batteries r always charged?
Richard Lewis: @cobrachoppergirl The transformer type usually are very simple and don't
have any smarts. That wall wart may be designed for something that is
really 13 volts, and since the battery is so much lower, more current
flows. You need to use my circuit and use a capacitor that will provide 250
mA or a little less.
Richard Lewis: the power supply is 120 vac. It then goes through a Run capacitor and then
to a full wave bridge. To see more, go to my blog
(poormanguides(dot)blogspot(dot)com)and go to May 14th posting called
Richard Lewis: Cor, you can use it with 220, just use a smaller value capacitor. Remember,
it has to be a "Run" capacitor. And remember to always have it hooked to
the load before turning it on.
robert reinwall: yea Just one question..You dont show hoe to make the charger you just tell
the ingredients and show the charger but not the build..i dont wanta put
the wires in the wrong spot you know wire it up wrong and end up in the
Richard Lewis: sure , it can be found on my blog at poormanguides(dot)blogspot(dot)com
Richard Lewis: if i use a 24 mfd capacitor I get 1 amp. If I use a 2 mfd them i get 1/12th
pf an amp. AC + capacitor = comstant current
da a: Hi Richard Lewis I made one of this for 220v my question is can I live it
to battery permanently linked for 2 weeks. I have six 12v car battery in
parallel with different Ah is it safe to leave all the time ON for 2 weeks
jacobhn2: Desulfator: One ac transformer +-5 to 15 volt and one capacitor 1000uf ,
one light blub 12v 10 to 45 watt. Conect all of it in series. Battery + to
light blub - to transformer - to + capacitor and - of cap to - of the
battery. Now turn the transformer on and the light blub turns on and the
battery now is changing and discharge 50 or 60 Hz. I hope you understand
what I have written :). Remember that the battery is not charged, so keep
an eye on the 12v over it.
wacek500: hi the 50mfd Capacitor will be good for 75ah battery? how long i need to
charge it ? i have 240v in my country.
MrDextertec: @KRAYSLiCK999 i think he has put a capacitor on mains ac 120volt in series
on +eve. by which he controls the current and voltage, smaller the
capacitor smaller voltage and current it passes ahead, this way by changing
capacitor he can change voltage, after lowering voltage through capacitor
in series he has diodes from old wan which ratify ac in to dc, this way he
can directly charge a battery just by using single capacitor and diodes.
da a: I made one on 220v it ok I charged two cord rill battery, and few car
battery. Today I gona bild one with 10mf. BTW I conec to him 1000hz
desulfator and is ok its work ok no problem so far. Once I had electrical
shock 315v 16mf=1,3A and suvave. BE VERY VERY CAREFFUL use protection and
fuse. I only use to trickle charge the battery to have enough energy for
Cor Blaak: Hi Richard, one question, i live in the Netherlands, we have 240 Volts
here, have i to adjust it with a resistor, or have i have tu use an variac
or transformer ?
da a: Also do you have some experience with sulfated car battery ? Some
experience about the days needed to desulfate ?
Claudio Ferns: @cobrachoppergirl Best method in your case would be take a parallel out of
your Computer UPS to charge any 12V Battery.
Richard Lewis: good job. I always hook up one of those timers to it and let it run. The
cool thing about the charger is that it will put the amps through the
battery even if it has to put out 170 volts DC to do it. 120 volts AC is
really 170 volt peak, so DC can go that high. I've never seen it go that
high, but once it shot up to 70 volts and then went back down.
breezebro: I've been looking for something like this. Will you please email me the
KRAYSLiCK999: hey MAN I NOTICED THERE IS NO TRANSFORMER THERE?? how is it possible 115vac
zebbi3: hi . please forgive my ignorance . i see three wires connected to capacitor
. two on one end i have no idea where they go . can anyone explain how this
is wired . and how it leads to battery . we desperatly need to save
batteries here in a our secluded area in high atlas morocco . we can't
afford new ones . thank you so much .
Cor Blaak: Thanks Richard, btw Happy New Year !
faffaflunkie: Are you using 117v to charge a 12 volt lead acid battery? I hope your life
insurance is paid up.
CHOPPERGIRL AIRWAR: This is frustrating as hell. I bought a desulfator off ebay, but I can't
figure out how to supply a trickle charge to the battery using a wallwart.
I try 12vdc 500ma + to +, - to -, and as soon as I hook the wall wart up to
the battery I heart bubbling and boiling, and I get sparks, and sometimes
the wires smoke. I can't use my regular digital charger because it shuts
off with a red light and won't charge if the damn battery voltage is under
a certain level. Bats at 10.9v,11.04,11.91v
Richard Lewis: 6 car batteries with different amp hours should be in series, NOT parallel.
The worst battery will "suck" the other ones down. You can keep it hooked
up for two weeks as long as the voltage doesn't go too high. About 1 amp or
less will usually work for the current. At 15 volts max each, if the
voltage gets above 90 volts or so, you will need to disconnect it.
bg0821: Is that capacitor like ones found in microwave ovens? interesting.
Paul Kay: @KRAYSLiCK999 thats right.. you are charging the battery with 120v mains
power.. just rectified and current limited
Richard Lewis: I don't think so. These are the "run" capacitors that hook to AC induction
motors. They have metal cases and are filled with oil. They are usually
about 20 to 30 MFD but can go up to 100 MFD (microfarad)
guitarmatt94: how can you tell if a battery is sulfated? because i have 6 eight volt golf
cart batteries that wont charge all the way and runtime is low. how would i
Jammit Timmaj: Pretty interesting. I call these "suicide chargers" just because there's no
mains isolation. Be careful. I saw the schematic on your website, and if
you keep an eye on the battery voltage there should be no harm to the
battery. One thing I would add is a 200W/120VAC lightbulb in series with
the AC socket. The bulb has a non-linear resistance and will limit current
to about 2A. With sulfated plates, the voltage will still rise to a high
george wood: HOW IS THIS WIRED UP. i WENT OUT AND BOUGHT AN OLD ALTERNATOR AND REMOVED
THE RECTIFIER BUT i HAVE NO IDEA WHAT TO DO NEXT
homemade battery chargers and desulfators4.5
out of 5