Thankyou for a very detailed and considered response. You are quite correct that I’m new to led technology and wary of Li-Ion batteries in particular. I’m remain surprised - even a little shocked - that such a device is sensitive to the specification of the charger ie that whilst it is happy to...
Not just yet! My new torch took about 7 hours of charging at around 1 watt (5v) before the red light turned green and so I charged the faulty torch the same rate for 7 hours (no charging light) and am testing briefly every few days. It could be that the torch remains useable ie holds its charge...
As a postscript, after checking the presumed fully charged torch every day today it failed to work which must mean despite there being no red charging light there remains a small drain. I’ve now given up and ordered a new one which unlike the original is supplied with a charger. I’ve learned my...
Oblique response presumably using the squirrel to assert my actions have no logic. That’s your opinion though I disagree.
Once drained I can charge for about 4 hours knowing that should fully charge (From the infoplate). That way not leaving the torch on charge unattended (I can do other things)...
My new strategy is to test the torch daily until it fails to illuminate then charge at 5V DC for 8 hours but checking every so often ie not overnight. Hopefully this will enable me to continue using it for the foreseeable.
Thanks for your very detailed reply which alarmed me somewhat! I don’t know anything about Lthium Ion batteries but doubt seriously that the tiny cell in this torch would cause an issue. When its voltage drops below a certain value won’t the main led light simply go out?
Examined the torch again but can see it would not be easy to reveal the underside of the pcb without using a soldering iron. Decided to disconnect the offending charging led (waggled its leads until they broke) and after charging for a couple of hours the torch works well. Will test it every...
I’ve heard back from Draper that the model was discontinued in 2018 and they can’t assist!
I may now look at removing the pcb controller board screw and seeing whether there is any evidence of solder melting due to wrong charger plug (too high voltage output).
Nice one! I can assure you that removing that screw will not make getting a photo of the pcb any easier as the wiring and led indicator light will obstruct. And anyway it’s probably only got components on the top. What do you imagine is going to be revealed?
Like most I have a drawer full of chargers with different pin diameters and am happy to find one which fits the device rather than try to read the output DC voltage. I need to stop assuming it doesn’t matter!
Following recharging the red charging light now remains on though the torch still works well.
i maybe grabbed the wrong charger which could have damaged the pc? I assumed that as long as the current was DC the torch protective circuit would only allow charging at the 3.7v Li-ion required. Am I...