Ambient explore and hack of a recent eBay charger
Added 2023-04-12 03:48:51 +0000 UTCThis looks very similar to a charger I looked at 5 years ago, but the circuitry is better.
It would make an excellent cell holding case for a custom charge system. In this instance I just made a few adjustments to turn it from a modestly high current charger into a basic top-up trickle charger reminiscent of the USB/solar PCB design I featured a while ago.
https://www.youtube.com/watch?v=ZyE7hnewzSk
Comments
Clearly the makers watched your earlier video and improved this newer one to benefit from your suggested improvement! I bet your channel is bookmarked all over China! Any day now a new “trickle charge” product will appear!
2023-04-15 15:39:45 +0000 UTCWorth buying for the case. The trickle charger I built uses those nice but hideous looking generic battery holders🖖
2023-04-15 12:10:50 +0000 UTCThat was my thought, too.
Circuitmike
2023-04-14 13:53:09 +0000 UTCWhen paralleling lithium cells you can use a mixture of capacities. They will act as a single larger cell. The main thing is to ensure the voltages are close before connecting them in parallel to avoid high current flow between them.
Big Clive
2023-04-13 02:08:13 +0000 UTCIt should, yes.
Big Clive
2023-04-13 02:06:27 +0000 UTCFound this 'Hackable Trash' chargers on AliExpress for $2.74 (US) each, inclusive of tax and shipping charges! Thanks Clive! These will make great Christmas stocking-stuffers, once properly modified!
Mustafa's Fleas
2023-04-13 00:13:09 +0000 UTCBig Clive, related to this subject, I would love to see a video on testing found cells. By that I mean random lithium cells harvested from everything from vapes with small cells to phones and tools with bigger cells. There are the handy little TP4065 charging boards, but what it the best way to test the cells and group them together if you wanted to build a larger battery of them? If you have already done such a video, my apologies. I'll go back to remedial internet searching class.
Davin Desborough
2023-04-12 13:45:46 +0000 UTCSame boat Rocco. I tried magnifying glass but my iPhone app “Magnify” helps tremendously. Takes longer to just grab a part and solder it but keeps me in the game
2023-04-12 11:07:19 +0000 UTCThe only problem I have with SMDs is seeing them. My old eyes need a magnifier to get them in place properly. Especially anything smaller than 1206.
Rocco Rizzo
2023-04-12 10:08:24 +0000 UTCIf you get rid of the 18ohm resistors, wouldn't the LED connected to the other resistor act as a diode to prevent backward electricity flow?
Ramast
2023-04-12 07:45:30 +0000 UTC'In this instance I just made a few adjustments to turn it from [trash]' 'into [usable trash].'
Curtis Hoffmann
2023-04-12 06:24:44 +0000 UTC
