Fellow YouTuber Thomas Nagy sent me a few items to explore.
This is the charger he used to maintain the condition of the battery on his motorbike. He went into the garage and found the unit dead and the bike battery flat. Let's see what went wrong.
Here's a link to Thomas's channel. It follows his daily routine as an electrician in London.
https://www.youtube.com/channel/UC6EJTy6p58ZW16PEljSn4Qw
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
This is the charger he used to maintain the condition of the battery on his motorbike. He went into the garage and found the unit dead and the bike battery flat. Let's see what went wrong.
Here's a link to Thomas's channel. It follows his daily routine as an electrician in London.
https://www.youtube.com/channel/UC6EJTy6p58ZW16PEljSn4Qw
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
Why even bother printing component values on a circuit board, and then not make the schematic available easily. I remember the good 'ol days of Radio Shack (siiiigh) when a full schematic was given with EVERY user manual, and frequently printed on a sticker within the cabinet (siiiiigh again)
I watch Thomas every so often to show me the differences between N.American and European Electrical standards which are amazingly different in so many ways. things like electrically heated shower heads that are common in Europe, would never be considered in N.America.
A TV repair person (they always have the best tricks) showed me a trick to measure a fried resistor – carefully cut it in two and stick the probe through half of it and it's likely 2x that.
Think I'll have to have a look inside the one we have. It trickle charges Tammy's bike all the time. To be honest it works very well but it will be interesting to see whether Thomas's is a one off or perhaps it's an ongoing issue.
How do I send something to get checked out?
Hi I have had one of the oxford chargers that gave up the ghost and destroyed my battery too. I would never buy one again.
Hi Clive, I have had one of these for years… however, just noticed recently when connected to my bike I can feel a slight 'tingle sensation' on the metal parts i.e. brake lever etc.. what is causing this? is it something to be concerned about?
keep up the the videos!
Good Video
I gave you a thumbs up but you really should have fixed it. It's not a matter of cost, time, or even pragmatism. It's a matter of principle. Shame on you. Love your videos, keep it up.
Big Clive has said it is Apocalyptic failure. Its dead Jim.
Excellent video Clive! I've just completed an autopsy on a similar 'Oxford Oximiser' charger, and the little IC chip that controls the power supply section has skid marks all over it, and half the legs blown off the board! – They're not cheap these units, and they don't seem to be made with much quality from what I've seen!
Clive, you're brilliant man.
Well, guess its time to unplug my oxford from my bike. Also in a cover. Fire incoming
Great video @bigclivedotcom
Hello Clive
I always find your strip-downs very entertaining and informative. I taught elementary electronics to college students and fancied myself as an electrical engineer as well as a physics teacher. Your knowledge reveals huge areas of my ignorance.
In your second photograph I noticed another skid mark that was hidden by the capacitor that was nearly touching the badly installed resistor. One of the rectifier diode seems to have split from end to end. I have blown several components in my time, including a diode similar to this one. When I did it, its guts spilled out of the split in the form of a blob of metal.
There aren't any guts spilling out of this one.
Many thanks and keep safe.
James
Cause of death: Ducatis kill everything electrical that they come into contact with. Mind you, an Oxfraud won't have put up much of a fight.