|Home > Circuits > Power Supply > Car Battery Charger|
|This charger will quickly and easily charge most any lead acid battery. The charger delivers full current until the current drawn by the battery falls to 150 mA. At this time, a lower voltage is applied to finish off and keep from over charging. When the battery is fully charged, the circuit switches off and lights a LED, telling you that the cycle has finished.|
|C1||1||6800uF 25V Electrolytic Capcitor|
|T1||1||3A 15V Transformer|
|BR1||1||5A 50V Bridge Rectifier||10A 50V Bridge Rectifier|
|S1||1||5A SPST Switch|
|F1||1||4A 250V Fuse|
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|I am a novice but I built this charger and it works just like it's supposed to. I am going to hook this up to a table fan that I converted to a generator and charge the battery on windy days. Great site.|
|from the power supply the positive and negative of the supply connects to where in the charger? it only has one "IN" where does the negative of the supply go? the ground goes to the transformer right?|
|I just know more about car battery. Don't over charge the battery or it will damage it.|
|Can i use a 8amp 13.8V voltage regulator as an input supply for the car battery charger?|
|what should the output voltage of the charger be? i got around 15 V according to multisim. thanks|
|hi, when saying "most any lead acid battery" do you mean it will charge a 6 Volter too?|
|can i use any other diode instead of D1 IN457?help me plz....|
|Thats a great circuit ! I am gonna use it as a storage battery charger. Thank You|
|the circuit that u suggested has 18v input i think it should be DC voltage and as you know a 12v AC transformer after passing throgh a diode bridge give 18v DC( 12x2 root squire). so i think a 12vAC transformer with 3 amp current are enough for this circuit, is it ok?|
|Nice circuit. what needs to be changed if i want to make it charge a 140 amp battery quckly. I need a 10A to 20Amps charger at least, For my ups, we get 4-5hrs blackout here every day.|
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