Http://lectricgenius.blogspot.com/ the battery charger had both diodes burnt out. i replaced them with some salvaged/recycled diodes.. Use a voltmeter to determine if the battery charger is producing electricity. place the end of the red wire from the voltmeter onto the metal clamp on the end of the red cable from the battery charger.. The battery should pop out; give it a tug if it doesn't. apply a small amount of rubbing alcohol to the tip of a connton swab and use it to clean the battery's connectors. dirt can build up and interfere with the connection, giving the appearance of a broken charger..
However, some dewalt battery chargers contain a fuse, so if you find your battery charger isn’t charging your battery, there’s a good chance you can repair it by replacing the fuse. you can find a fuse at an electrical supply store.. How to repair battery chargers dewalt 18 volt battery recall small 6 volt battery charger 12 volt nicad battery pack lubricate the posts. a decreased dab of petroleum jelly on each post will allow keep your cables neat and free of corrosion greater the time.. Repairing a "digital" battery charger like exide several years ago i bought a "broken" battery charger at a garage sale, hoping that there was some internal fuse i could replace to make it run again..
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