My black and decker battry charger quit working all of a sudden. is it rrash or can i fix it

This could be faulty battery

My 20V battery was stored completely discharged for over 8 months. After all that time I bet the battery was holding no charge whatsoever. When you plug a completely drained battery to a charger the charger will experience a big demand in current and will fault out, flashing red. So we need to put just a little bit of charge in the battery for the charger to start working. What I did is with the battery in charger unplug and plug the charger like 10 times. Every time you plug it in it will send voltage to the battery for a split of a second before the charger fails. Eventually the battery will get enough charge for the charger to start working.

You need to post MORE information like what is it doing or not doing and how you use this charger then we can eliminate operator trouble and focus on the charger.

Black and Decker has had numerous complaints from consumers. Most of them are over a failed batttery or batttery charger. There have been reports that their service centers refuse to repair them, stating that it is not cost effective. so, if a unit is still under their warranty, they probably just replace it. In your case, if it is an older unit; consider yourself one of the lucky ones that had one to work for an extended period of time. If you choose, the charger and the batteries for it can have their electrical capacities checked with a simple volt-meter tool. The tool doesn't lie and would let you know if the charger's output is correct and if the batteries are holding their charge.

Porter Cable has not offered a replacement for their poorly designed 19.2V chargers. I had the same problem and happen to like my drill and circular saw. I found a universal charger called a model number CHUN-2420. Google it--I got mine for $27 plus shipping. All you need to do to make this work is splice 3 wires.

My charger is a PC model 8624, so the instructions might vary slightly between the chargers. Remove the six screws on the bottom of your PC charger. Remove the bottom section. Remove the screw(s) that attach the circuit card to the plastic housing. Disconnect the 3 pin white charging connector from the circuit card, and cutoff the connector. Discard the circuit card and power cord. Cut the 3 conductor (red/yellow/black) cable coming out of the Chun-2420 approximately 2' from the charger. Splice these three wires to the three wires in the charger housing that connect to your battery. In my situation, Red/Red, Yellow/Yellow, White/Black. To verify, red=positive, black/white=negative, yellow=temperature sensor. Wrap the red/yellow/black cable with electrical tape where it exits the PC charger through the power cord hole. Re-attach the bottom.

change batteries, your charger should indicate wheather you battery is good or noot on the pause inbetween blinks.

My charger has a fuse located on the circuit board inside the unit....when mine stopped working, it was the fuse...replaced it and it is working fine for one battery, the other blows the fuse every time....bad battery.

Open it and look for a fuse, then go buy a new one (my Ryobi charger didn't have a fuse)

motor problem.if you hit something stone our water springler may be the motor magnetic ring broke & jam the armature & not
to start & house pop. see toolpartsdirect.com looks for the model of the mower. black & decker

If it seems to be taking a charge, then the charger and the battries are ok and the problem is with the indicator light. So if it is working normally, I wouldn't worry about that light.