The laser light on my black & decker bdl500 stopped working

Either the switch is defective or the wire inside the pole is broken

it is probably the brushes on the motors are wore out or stuck and not making contact. pretty much junk unless you feel confident enough to attempt repair.

If you need further help, reach me via phone at https://www.6ya.com/expert/steven_a67ead41eb5fc62a

Batterys have a life span associated with them. Typically about 2 years depending on how often you use them and your charging habits. The newer batteries(in the past 4 years) do not have memory, but since it is a black and decker and it is low cost item they may have used an older technology. I am assuming you have checked the obvious such as the charger does work. Battery is inserted properly. An easy task to try would be to buy a new battery and make sure you discharge it before you charge. Run your drill till it stops. Then charge it to see if the charger is working. If not, then you have a charger problem. If so, there may be fuse inside that can be replaced or something simple like a solder joint broke.
Hope that helps

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.

Check to see if the fwrd/rvrse switch is fully engaged in one direction.

I have a miscrosoft wireless laser mouse 6000, and it also stopped working on my laptop. I changed the battery, still no workie. I tested the battery in another device, and it was good. I moved the mouse to another computer, and it did not work. The light on the usb connector was lit. [No changes at all to my laptop.]. It seemed like there was no power to the mouse, and I looked at the contacts inside the mouse. The contact just inside the mouse's opening for the battery appeared to be bent down (away from the contact on the battery tray). So, I pulled it up a little so it would connect when the battery drawer closed, and (after tweaking it a couple of times), it finally worked!

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.

check the factory date.. the batt might be bad due to time, check the polarity conexion to the batt might inverse. i suggest u try another batt..

Im having the same problem, anyone find the solution?

common problem battery.