Only the light works

Thoughts -
No/poor connection between power source and motor
Motor failure
Only someone with their hands on the bike can fully diagnose.

battery has failed to take a full charge. will new a new battery

I had the same exact issue. I'd pill the on trigger and light would blink 1 per second.

Called dyson and was told I need a new battery which +tax and h&s would be just under $100 Canadian.

Having a bit of electronics background and experience with common household battery operated tools, I thought what is the likely reason for them to think I need a new battery, even if my battery wasn't dead.

first and simplest, safe thought was could it be the same thing that happens in your basic flashlights, if not used for a while. That is the connection between battery and device being dirty or obstructed somehow.

So, took battery out, saw the 3 connectors has a bit (very little) black on them. Wiped them clean with my finger. Did the same with the 3 connectors on device where battery goes in.

Put battery back back in and it was as good as new.

No no new battery, no special tools, no fancy work, no repair cost.

Wife is very happy and toddlers love using it to help clean.

You are sure the battery is charged OK? Bosch Li-Ion drills have a feature whereby they stop working when the battery is low but not discharged right out. This is to extend the battery life as it does not like being flattened altogether.

This happens quite suddenly, from one press of the trigger to the next. It can make you think the drill is faulty.

If the battery charge is OK, then maybe
- trigger faulty
- motor burnout
- broken contact on battery or in drill battery shoe

This could be a trigger (contacts) problem or motor brushes are worn. Try to rotate the drill chuck by hand about 1/4 turn, then try the trigger. If the drill starts to move then it most likely will be worn brushes.

Try pulling the battery out a few times or maybe even replacing your battery. This used to happen to my phone all the time and it has suddenly stopped doing it- I'm not sure what triggered it but if I were you I would just keep taking out the battery and unplugging/replugging the phone into the charger, and pressing and holding the power button until it turns on.

sounds like your battery is either shorted out or out of charge

what you are missing is a dewalt hammer drill.

This worked for me: I turned the ISO to 800 and set the flash to "auto" - even in quite bright light the flash still goes off so I'd definitely try this. To turn the image stabiliszer off, press the "unlock" button next to the shutter on the side of the phone.

yes this is normal the spark keeps motor from stalling out by taking away the friction spark by making own spark
the clunk is the drill brake so you dont brake your hand when screw goes in all the way unlike old drills that kept going even when your hand was attached to it