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  1. M

    Draper led torch charging light remains on

    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...
  2. M

    Draper led torch charging light remains on

    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...
  3. M

    Draper led torch charging light remains on

    PPS Below is the underside of the pcb. Any comments?
  4. M

    Draper led torch charging light remains on

    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...
  5. M

    Draper led torch charging light remains on

    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)...
  6. M

    Draper led torch charging light remains on

    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.
  7. M

    Draper led torch charging light remains on

    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?
  8. M

    Draper led torch charging light remains on

    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...
  9. M

    Draper led torch charging light remains on

  10. M

    Draper led torch charging light remains on

    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).
  11. M

    Draper led torch charging light remains on

    Thankyou for the explanation.
  12. M

    Draper led torch charging light remains on

    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?
  13. M

    Draper led torch charging light remains on

    That would be difficult unfortunately. I’ve sent the problem to Draper to advise what to do and will post their reply here.
  14. M

    Draper led torch charging light remains on

    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!
  15. M

    Draper led torch charging light remains on

    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...
  16. M

    RING LCD torch misbehaving - is it saveable?

    Sadly the LED torch is for the scrap heap. I connected the new battery and the torch lit ok initially but after 5 mins went out. On attempting to charge it initially showed red (charging) but soon went green (fully charged). I then tried to run the torch again (to run down the battery) but after...
  17. M

    RING LCD torch misbehaving - is it saveable?

    Thanks for comments! Will be soldering in a new battery Saturday and will report the results here soon after.
  18. M

    RING LCD torch misbehaving - is it saveable?

    You could well be right but how do Li-ion batteries tend to fail? Don’t they just like phone batteries need recharging much more often? My money’s on the pcb but I have no idea how to test it to be sure. What is an easy way of putting the old battery under load?
  19. M

    RING LCD torch misbehaving - is it saveable?

    I am trying to decide whether to repair a RING lcd inspection torch/lamp. On switching on the lamp lights for a few seconds then goes out. Ditto with torchlight on two presses of switch. On connecting to a charger the red light (presumably partially discharged needs charging) comes on but after...
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