Good job. I have so many of these lights. I'm mounting a few strips by themselves onto a framed back pack. I decided to use lithium polymer batteries with built in bms boards, even though a tp4056 board will work. A small dc voltage meter will give me the charge status. So many things that these free lights can be repurposed into.
was gonna comment that the cost difference for type C can't be that high, I remember Linus Sebastian saying twelve cents like, half a decade ago. Of course, this is a three year old video and your comment is over two years old lol so I'm basically shouting into the void 💀
I have successfully repurposed the original battery contacts to replace corroded contacts in remotes and various toys and tools where durasmells or enerdispizer exploded and destroyed the contacts! Especially the springy dingy side, clean the old one tin it with some flux and solder the hf one right to it! And Bobs your auntie!
I just did a similar mod with an even smaller lithium cell that easily fit. Then did some current draw measurements, and noted that the cob was pulling 40mA per LED and they are only rated for 30mA. Wondering if yours is holding up or if they burned out already??? PS - my 350mA cell was small enough to fit in bat compartment with room to spare for the tp4056 sol I kept the little 3 LED flashlight option which I kinda like - has good spot direction and is comparable to the light output of the smaller old incandescent flashlights.
I have a dozen of these little cobs. I use them on my drill press to illuminate my work area. This flashlight I made still works but about half of the LEDs on my press are burned out. Doesn’t seem to be proper current regulation. Which, for the price…
@@thedoubtfultechnician8067 Thank you for reply! Others have reported that swapping from regular AAAs to higher powered alkaline AAAs or Lithiums somehow give the LEDs too much current? Rechargeable Ni/Mh have less nominal voltage so may be better, but possibly still pull too much current when fully charged? My cob's resistor is 1.5 Ohms. Think I'll substitute it with a 2 ohm resistor so LEDs pulls closer to 30mA which I think is their rated capacity. Will have to learn SMD soldering techniques first though. In the mean time I'll only use the 3 LED mini flash light mode option since my measurements show they run at 30mA, within tolerances/not abused.
Good job. I have so many of these lights. I'm mounting a few strips by themselves onto a framed back pack. I decided to use lithium polymer batteries with built in bms boards, even though a tp4056 board will work. A small dc voltage meter will give me the charge status. So many things that these free lights can be repurposed into.
It looks like those TP4056 chargers are available with a USB-C port, which is awesome for me. Don't have to have a second cord to lose.
was gonna comment that the cost difference for type C can't be that high, I remember Linus Sebastian saying twelve cents like, half a decade ago. Of course, this is a three year old video and your comment is over two years old lol so I'm basically shouting into the void 💀
@@krisplanker9640I hear you!
Mad3 it awesome for free. With a disposable vape i found on the ground
great first video.
I have successfully repurposed the original battery contacts to replace corroded contacts in remotes and various toys and tools where durasmells or enerdispizer exploded and destroyed the contacts! Especially the springy dingy side, clean the old one tin it with some flux and solder the hf one right to it! And Bobs your auntie!
Nice one, this is right up my alley.
I just did a similar mod with an even smaller lithium cell that easily fit. Then did some current draw measurements, and noted that the cob was pulling 40mA per LED and they are only rated for 30mA. Wondering if yours is holding up or if they burned out already???
PS - my 350mA cell was small enough to fit in bat compartment with room to spare for the tp4056 sol I kept the little 3 LED flashlight option which I kinda like - has good spot direction and is comparable to the light output of the smaller old incandescent flashlights.
I have a dozen of these little cobs. I use them on my drill press to illuminate my work area. This flashlight I made still works but about half of the LEDs on my press are burned out. Doesn’t seem to be proper current regulation. Which, for the price…
@@thedoubtfultechnician8067 Thank you for reply! Others have reported that swapping from regular AAAs to higher powered alkaline AAAs or Lithiums somehow give the LEDs too much current? Rechargeable Ni/Mh have less nominal voltage so may be better, but possibly still pull too much current when fully charged?
My cob's resistor is 1.5 Ohms. Think I'll substitute it with a 2 ohm resistor so LEDs pulls closer to 30mA which I think is their rated capacity. Will have to learn SMD soldering techniques first though. In the mean time I'll only use the 3 LED mini flash light mode option since my measurements show they run at 30mA, within tolerances/not abused.
So this place gives you a free flashlight when you buy something?
Whats the usb device vid & pid
Well....atleast it's not ave.
Put a 555 time inside makeit 80 90 duty, human eye wont notice, save enery prolong life. Metric system & electronics rule
take this board and chuck it, you don't LED no mo'
Without it there’s no switch.
You still got this light? Lol
Sure do!
Grabbing disposable vapes is another good source of batteries for these