DIY Circuit – Car Battery Charger

http://zedomax.com/image/200609/batterycharger.JPG

Here’s a cool car battery charger diagram.

This very simple circuit uses a transformer ,two diodes , a capacitor and an ammeter. To charge a battery just connect the + and – terminals of the circuit to the corresponding terminals of the battery. When the battery is not charged, the ammeter reading shows 1-3 amps. When the battery is fully charged the ammeter reads Zero or nearly zero, after which the battery should be removed from the charger.

via electronic-circuits-diagrams

8 Responses to DIY Circuit – Car Battery Charger

  1. David Vega says:

    Hola de casualidad ustedes no tendran el diagrama para realizar un coche a control remoto.

    Gracia

  2. Pingback: All Car Portal - Blogs » Car Battery Charger

  3. ronald says:

    A resistor must be added to limit the current flow or fuse to avoid short circuit. Any accident may cause overheating or fire!

  4. thundergodrules says:

    cool, but is that charger a real CAR battery charger? it works on larger batteries or the small ones? please, i need to know because it looks very simple to build . I need to build it, i need it a lot. Thanks.

  5. zedomax says:

    I believe it is but as always, proceed with caution, especially if you don't mess around with circuits much. Well, my honest advice here.

  6. zedomax says:

    I believe it is but as always, proceed with caution, especially if you don't mess around with circuits much. Well, my honest advice here.

  7. Markos says:

    Oh, come on, Don’t ever do this. It doesn’t even have a current limiter. It is REALLY dangerous, as lead acid batts could explode (literally).

    Each battery has a different max charge current (larger ones will have a really high charge current capacity), so exceeding that is REALLY DANGEROUS!!

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