## How to make a car battery charger with power supply,club car golf cart battery wiring,car battery voltage when starting xi,cell phone battery charger for iphone - PDF Review

25.06.2016
Can we use 12-0-12 transformer insted of 15-0-15 transformer.because my transformer is 12-0-12. If you have only a 12 volt transformer use a rectifier and 2.5 ohms 10 watts resistance in series with the battery to be charged as a current limiting resistance, no filter capacitor is also required.
Hello, I find this circuit and its explanation very interesting and explanatory in its entirety. Hi Fredz it can charge only one partially discharged 12 volt 40AH battery and not for even a flat battery. Hi Hari 4nos BY127 as bridge is ok but 12 volt may not be sufficient, you require 0-15 volt transformer.
Hi Nidesh C2 & C3 are ceramic disc capacitors with working voltage of 40volts or above. Hello peter we appreciate all the schooling and guidance but how do we get in touch with u for practical and theory lessons and can somebody study on line and get a certificate or diploma maybe even degree in the electrical and radio telecommunication? Hi Abhi the DC voltage will become low and as the battery voltage builds up your charging current will become too low and the battery may not get fullt topped up. If you have only 12-0-12 2A on hand then use 2nos 1N5404 and a 2.2 ohms 10watts resistance and charge no other electronics is required. Can I use a 12-0-12 (2A) step down transformer instead of 15-0-15(3A) step down transformer? Hi Seetharaman, what ur saying is I could have a slide switch, if slide switch is moved toward ther 12 volt indication, than with the 2 rectifiers and 1to 2 ohms as current limiting resistance, would be able to charge the 12 volts battery. Hi Patrick With a 12 0 12 transformer you can charge a 12volt car battery with just 2 rectofiers and one 1 to 2 ohms current limitting resistance. HI Seetharaman, IS there a possibility of adding a toggle switch for 6 and 12 volts charging and toggle switch for slow and fast charging in this circuit. Hi since this is regulated voltage charger with a flat battery at the start of charging the current will be at 3amps, gradually decrease and once the terminal voltage reaches the rated voltage the current will reduce to minimum and it will be just doing the topping up function, hence no additional circuit is required. I need to build my own power supply for 220 volt ac to 12 volt dc around 30 watt is ok,it must be reliable for LED signage,,can I be assisted?

An electrolysis machine of this type is my favorite because it is easier to set up and more efficient than the electrolysis machine of the Classic type. My goal in designing the "Pipe" type electrolysis machine was to make it faster and more powerful. I decided to use a car battery charger, the same charger which I use for electrolytic derusting of iron relics, and surprisingly it did a great cleaning job on the clad coins. This car battery charger incorporates an Ammeter which allows for determining an optimal level of concentration of the electrolytic solution (see details on next page). Even though this car battery charger has the battery clamps attached, I recommend to use the disposable alligator clips at the terminals to connect to the cathode and anode inside the electrolytic cell; thus, preventing the charger's clamps from any corrosive effects of hot vapor evolving above the electrolytic cell during electrolysis. It is best to use the charger that does NOT have a timer, relay or charging rate device so that it can run continuously for the entire electrolytic coin cleaning session.
Another way to increase the speed and efficiency of the electrolytic coin cleaning process is to use an anode that surrounds the coin by 360°.
An orange marker is placed across the jar's lip to provide proper suspension of the coin into the electrolyte.
Step 2: Mount the transformer and attach the line cordUse screws to mount the transformer on the plywood base.
I miss the days when magazines like Popular Mechanics had all sorts of DIY projects for making and repairing just about everything. The transformer T1 steps down the mains voltage and diodes D1&D2 does the job of rectification.
Once the battery terminal reaches around 13.6 Volt, the charger will only start trickling, hence no problem. This will be the simplest charger watch for the terminal voltage once it reaches 14 volts terminate the charge, as the peak DC voltage can reach 12 X rt2(1.414). To charge a 6 volt battery you have to add one thyristor after the full wave rectification with zener and transistor to limit charging voltage at 6.9 volts. This would enable me to clean numerous tarnished and slightly corroded dug clad and other coins faster than usual.

If you would like to learn more about using car battery chargers for electrolysis, please visit page 8 of my "Electrolytic Rust Removal" tutorial. The ammeter is also a very useful device for checking amperage readings that reflect the ongoing cleaning action.
Also, make sure you do not purchase a car battery charger that will not start generating current in the electrolyte unless you use a battery along with it. I found a piece of a stainless steel pipe that could last long and best serve the purpose: it fits into the glass jar, and its diameter is larger than a diameter of an average large coin. This can be also done to improve the coin's position inside the electrolytic cell of the "Classic" setup.
Current limitting can also be achieved by limitting charging current at 30% of the rated capacity of the battery. The amperage can be controlled by a knob, so a high current density can be selected to increase the hydrogen evolvement for quicker or slower removal of the hardest encrustation off the coin. As the "line of sight" is all around the coin, entire coin's surface gets uniformly cleaned within a short period of time. The LED will glow brighty to start with and slowly it will dim down as the battery is nearing its rated charge limit. In that case, the dome light will remain on all night and the battery will be very low in the morning.I made this charger when I ordered some electronic parts and received a 120 to 12 volt AC transformer with center tap.
Some friends have also borrowed it when their batteries were dead and it worked for them.The center tap allowed the output to be either 6 or 12 volts.

### Comments How to make a car battery charger with power supply

1. Genie_in_a_bottle
You are researching how to build an electronic toy have my car torn.
2. Turchanka_18
Most expensive ones go up to \$150 cycle.
3. sex_qirl
These have flashlights and other.
4. AISHWARYA_RAI
Charging your battery as the voltage.