I've looked at a few of these before and they all seem to have some weird circuitry twist. This one initially looked almost identical to the blue Aldi unit, but the circuitry has some weird bits that are actually quite clever.
What's not clever is the current the LEDs are being run at. With a freshly charged battery the current draw was:-
High (2 LEDs lit) 3.8A - 11W
Medium (1 LED lit) 3A - 9W
Low (other LED lit) 1.6A - 4.8W
When the zero-ohm links are removed and replaced with one of the 1 ohm resistors the current drops to:-
Both LEDs lit:- 1.75A - 5.25W
One LED lit:- 1A - 3W
The light output is still very useful, but the light runs much cooler and has a considerably higher run time on a charge. That makes it better suited as a rechargeable light source during these turbulent times.
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What's not clever is the current the LEDs are being run at. With a freshly charged battery the current draw was:-
High (2 LEDs lit) 3.8A - 11W
Medium (1 LED lit) 3A - 9W
Low (other LED lit) 1.6A - 4.8W
When the zero-ohm links are removed and replaced with one of the 1 ohm resistors the current drops to:-
Both LEDs lit:- 1.75A - 5.25W
One LED lit:- 1A - 3W
The light output is still very useful, but the light runs much cooler and has a considerably higher run time on a charge. That makes it better suited as a rechargeable light source during these turbulent times.
Supporting the channel with a dollar or two on Patreon helps keep it independent of YouTube's quirks, avoids intrusive mid-video adverts, gives early access, bonus footage and regular quiet Patreon live streams.
https://www.patreon.com/bigclive
#ElectronicsCreators
So are the zero ohm resistors 5% or 1%?
Thank you for yet another interesting video!
Instead of replacing resistors on the pcd isn't it is easier to put one in the ground wire to the LEDs?
Btw I hope you can make a video on the (nicer) dimmable 12/24v AC/DC G4 halogen replacing led bulbs, these are moulded in clear silicone to resemble a glass bulb i think. It has an efficient switching CC regulator that should be hackable 🙂
The mosfets are typically in the milli ohms range when turned on so dissipate very little power. I'd more worry about the leds, though at some point the battery will drop voltage so that may be straining as well.
Since they look the same from the outside you would reckon the IP class would be the same but one is 54 and the other is 44. Now is 54 the next step better than 44 but still ….
It reminds me of the furry little spiders, they're sort of cute. 🤔
The one I have from the Aldi has an sos mode and a Bluetooth speaker in it. So there are more models. I think mine says Brennstuhl
Always use protection…
Interesting light, thanks.
How convenient! I have this model and the battery is worn out from illuminating my Ukrainian flag every night since February, and I wanted to figure out how to replace the batteries.
I wonder if it's possible to flip the LEDs heatsink to the other side? at least the larger portion of that plate won't sit above the batteries (the large part will be on the left instead of being on the right).
The yellow light looks like a minion lol
The image on it looks like a warshak test.
👍Utube ai censorship app letting me comment today.
Batteries don't seem last long at 4.35v, as u questioned.
Think 4.25v may is still too high.
4.15v seems a good target for long life and charge temp.
Most of charge between 3.7v and 4.0 apparently presumably.
Maybe lower with pin.
What was that movie with the gremlin in the circuitry it would show up on all the electronics? That's what the image kind of reminds me of lol.