Impossible to recharge the yoshikart

Test the battery with a multimeter. Then test the charger output with the multimeter.

It is not that young anymore. The rechargeable battery is (almost?) dead. It is almost impossible to replace it. I once tried it, took me more than a day yo put everything together and still it never was as before.
I have bought a new Braun (799) and I'm convinced this one will live longer. The rechargeable battery in this one, you can shave one hour before you need to recharge it. It lasts a week with me, or sometimes even longer, before I have to charge it again.

Perhaps you just use the shaver with the power cord, like we used to do for 20 years, and start saving for a new one?

The battery has most likely been damaged and will no longer retain a charge. A replacement battery should work.

It is very unlikely that the cord is bad unless it has been severely stressed. Most likely, the problem is the battery but it is impossible for me to say for sure.
You will find the correct replacement battery pack for model 5885XL at shaveroutlet.com. See link below

http://shaveroutlet.com/shaver-replacement-parts/shaver-battery-pack-for-most-norelco-more-p-278.html

1. do one thing
disconnect the power cord disconnect the battery\ disconnect any else connected the laptop. now hold down the power button for 1 minute. Now connect the battery and check Also recharge the battery.
If it still does not work, battery has gone bad.

Based on the limited info provided, it appears you have a rechargeable razor that you plug in to recharge.

I had this occur with an older shaver I had years ago. The suspected issue is tha the battery isn't fully charged and the razor is running on battery power while the cord is plugged into it and the power outlet.

However, the cord is making a loose connection at the razor or has a broken conductor in the cord. So and what is happening is that you arfe getting an intermittent power connection that allows the power to run the razor, which would be why it seems to "speed up" as any rechargeable product always run faster/better when connected directly to an electric power source.

You can look at the plug on the razor to see if the pins/connector is loose, and also carefully check the cord to see if shows signs of having been sharply kinked or bent at the razor plug end or at the power plug end or along it somewhere.

It could be as simple as replacing the power cord. Or you may have to take the razor apart to repair the charging socket at the razor to resolve this issue.

Hope you find this Very Helpful and best regards!

sounds to me like power cord failure.  it is running off battery power and with no power cord it cant recharge and shuts down to save data

ok..pull the battery first, and try it with only the power cord..

the battery MAY need to go through a charge/discharge/recharge cycle..

this will tell us.

Normally that is the best way. Turn your system on and let it run down without the power cord. It will shutdown automatically when the battery is really low. Then with the system off, connect the power cord and let the battery recharge. I'd let give it at least a 10 hour charge if not overnight. Should be OK by then. When you power back up the next day, look for the "icon" that lets you check power levels. That little program should tell you loads of information that you might find useful. Look for "hints' that will extend your battery life too. The newer batteries today no longer have that "Memory Issue" they once had. Just remember re-chargeable batteries do wear out over time. You can only recharge them so many times but that's now in the hundreds with the newer ones or around 2-3 years depending on usage.

Gee, hang on I'll get my crystal ball out :-) I'm afraid it's impossible to say. It could be anything from a dirty battery connection to a full blown power board meltdown. Without having it on the bench it's impossible to say. Try the uwsual silly stuff, make sure the batteries are inserted the right way, make sure they're fully charged, make sure the battery ends are clean, make sure the battery connections in the camera are clean. Try your power supply instead of the batteries, Try a different set of batteries. Next stop, your friendly repair man.