12V Lead Acid Battery Charger(Homemade)



I took a MOT and carefully stripped out the 2000V Secondary and replaced it with a low voltage high current winding of 18-20T or 12ga wire. New fully rectified DC output is 15.8VDC. An electrolytic capacitor of 1500uf was also added for smoothing purposes(Not much smoothing is required for charging lead acid batteries). Also includes a voltage monitoring circuit which allows you to know when the voltage of the battery being charged has reached completion. A green LED will be brightly illuminated to let you know to unplug the charger.

Schematic Here:
http://tinypic.com/m/k0oy94/4

The circuit in the schematic above will connect to this automatic charging cut-off circuit, then to the battery to be charged:

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Schumacher SE-2158 Battery Charger Repair



This video shows the process of repairing this Schumacher SE-2158 battery charger. In this particular case, the charging capacity selector switch had an intermittent contact on the 12V/10A setting (probably the most used setting for this charger). The switch replacement was quite straight forward and went very well. I now have a capable battery charger for almost any occasion that only cost me $25 in repairs. It’s amazing that this thing was left on the side of the road. It’s got allot of life left in it. (1/18/2016)

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Homemade 6V / 2.5 Amp Power Supply/Battery Charger



If your looking for a HIGHLY efficient (6VDC 2.5A / 6VAC 3.0A) power supply or 6V lead acid battery charger, then look no further. This power supply/charger is made using a 120V (MOT) microwave oven transformer, by performing the modifications shown in this video. 120V transformer current at idle(NO LOAD) only draws 30mA, and using a full 2.5A load, 200mA. NO heating issues of the core whatsoever. As usual, always be very careful when working with 120VAC/240VAC projects!

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How To Make 12 Volt 30 AMP Battery Charger Transformer Winding Easy At Home. YT-48



12 volt 30 amp transformer winding 150 AH to 300 AH battery charger cum 500VA inverter transformer ( output 120V and 230V AS your required ) , make easy at home .

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How to make automatic cut off battery charger circuit 12V under 10AH



Hello my dear, today i would to show you about How to make automatic cut off battery charger circuit 12V under 10AH

Thank You for watching my video! please kindly assist me to like share and subscribe our channel for more video…

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Battery charger 12V 5 AMP at home || DIY battery charger using transformer



Car tuck motor cycle mower battery charger (ebay affiliate) https://goo.gl/FoLfhd
purchase 12 V 6Amp Battery Charger (Amazon Affiliate) http://amzn.to/2vBthcY

This video tells, how to make 12 Volts 5 Ampere battery charger.
Simplified video. Every connection has been explained in detail.
Thanks.
Keep Innovating.

To download circuit diagram, Please Click the link below:—-

https://drive.google.com/open?id=0B7F7KKh_JHk9YUZvVUNpRmhRZE0

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9V Battery Charger



In this video I have made a 9v battery Charge For YOU.
How to charge a 9V Battery without mobile charger..

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