First impressions of this little light are pretty good. Apart from the low capacity internal lithium cell it works fine and has a very neat and minimalist PCB to control the light and the charging of the lithium cell.... Except it DOESN'T control the charging of the lithium cell.
On closer examination it looks like the space for the charging circuitry might become active if the diode is left out. They possibly allowed for a simple diode where a cell that already had protection was used.
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.
On closer examination it looks like the space for the charging circuitry might become active if the diode is left out. They possibly allowed for a simple diode where a cell that already had protection was used.
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.
A chunky battery would also give it some weight and make it more stable . I bought something similar but with an 18650 battery inside , very wobbly so i got some Plasticine and put that in the base , worked a charm
it looks like a light that you put in your
Perhaps that bit of stuff under the touch point isn't actually copper, but copper clad aluminum? 🙂
We sell one like this at jaycar here in australia, it's got a 500mah battery and a large clip on the underside to clamp onto a desk with a body that's half the width.
Id assume it's the proper one with all the circuitry and healthy battery inside it though considering its about 12 USD
The best (but expensive) portable desk light is Yeeligh YLTD01Y 5W
Cost about ~50 but not Chinese cheap quality
thank you for disassembling rechargeable touch light…👍
I've just bought some of these touch chips from ebay – SGL8022WS
The IC is JL8022W-N
i have a similar version however i think you missed the chip has low Voltage cutoff protection and it charges slowly ~45ma to right around 4.16v
mine can fit 2x 18650 and with 4000mah from 2 CGR18650A (laptop pull) on LOW i get ~100 hours and on HIGH i get ~20 not finished testing
the light will dim below 3v but will turn off at ~2.75v
We had two fail for us, too. Not sure if it was overcharging, they started to flicker erratically and get dim
LEDs in parallel?
are those really recycled old phone batteries? if so, are they likely tested to see if they even hold a charge? one part of me feels that you're getting cheated in a way by getting a used cell, but the other part feels that if it works then recycling them is a good use for things like this. i just wonder how long they would work for..
I bought two of these two years back and fitted them with large lithium cells almost straight away. It's a dodgy lamp, but it works. Mine doesn't have a 3-step light level, instead it just changes slowly and you stop pushing the touch button at the intensity you want.
I just bought one of those. But mine takes 2×AA celle or conects To usb
I got one of those type lights however mine took 3 AAA batteries. I hat AAA batteries so I installed a small cell like that, then used the little charging/protection adapters you can get off eBay. The one I have has the magnifying glass with a circle of LED'S to light up what you are looking at. I use it sometimes when I need that extra magnification for my soldering jobs. Conversion of these things is really kind of fun I have done others using old phone batteries or batteries from old PDA'S that I used to play around with in years gone by.