@@JulianIlettHello mate I just got that battery you got from lidles in your other video from a while back ..thanks that was helpful.. do you do any vids on making your own batteries sir from cheap too free materials n cheap too free electrolytes I would love a chinwag if u got any ideas or intrested in that type off content...cheers
@@JulianIlett just managed too make a 7.6 volt 10 milliamp stack cell from charcoal n vinigar...I know 10 milliamp not much but my cells are small but hold for a long time you could series n parralel 100 off them in less than a shoebox...the voltage would be stupid you would have too tone it down but amps current yh low but very usable if talking LED but like I said this is purley charcoal n vinigar so it's like bottom bottom barrel power so far but yh if your intrested shout me...I think I could get an amp in half a shoe box which you just top up with salt water or vinigar once a week but yh not even started yet if fancy bit diff content for channel
Yes as some others already noted, since the device has to be powered from near exhausted low voltage cells obviously the inductor must be part of a boost circuit to power it.
There's two versions of the digital one, the BT-168D (aka BT-168 Pro) will do lithium, the BT-168 won't (apparently). I've never checked what the 9v range goes down to, should be able to test a LiPo on that.
Only this week I acquired a Ronco Battery Tester from a local charity shop! I'm assuming it uses a motor or Galvanometer for the battery power display, as there are no batteries. I never knew they existed until this week ha
the BT168 Analog puts a load on the batteries (I have that one). I don't know about the digital one but open circuit voltage on an alkaline battery doesn't tell you much. It would need to put a load in order to make it useful.
Pretty sure that was a MOSFET not a diode - I dont think two pins were connected - looked like the left one had a keep out. Might be wrong. Like the 18650 tester.
The analog BT-168 has load resistors to check battery voltages under some load, but the digital versions (BT-168D or higher model BT-168 Pro, which can test Lithium batteries) apparently do not have these load resistors as they indicate voltage similar to multimeter.
I hope you realize there's a tester that can do up to 8S battery packs, search for "Lipo Battery Low Voltage Buzzer Alarm Indicator Monitor Checker Tester" Single display, it shows the overall voltage, then steps through each cell The inductor in yours is probably a boost converter to power the display
Hi, What was the conclusion on the battery tester loading? If it's just powering the on board switching regulator then you might expect the load to reduce when the cell voltage is higher.
That analogue battery tester design has been around for at least 30 years unchanged 😊. I still have the one I bought from (probably) B&Q just after I moved into my first flat in 1992.
I agree, I think battery testers are better at telling when a battery is flat if they put a little load on them when testing them, like the old ones do(Not on purpose, they use current to deflect the needle). The deliverable current nosedives at the end of a AA battery's useful life, and I don't think that is as apparent if you don't put a load on them.
It was showing 9 volt batteries on the advertisement on your computer. So I don't see why you couldn't test lithium batteries because I'm sure it has a wide voltage range. Probably from 0.01 all the way up to probably around 11 or 12 volts on the battery tester.
It's interesting. The 9V input powers the circuit through a linear regulator. The 1.5V input appears to drive a boost converter - it works down to 0.45V (below that the LCD flickers and shows 0.00V).
Do you have grand plans for the 18650 tester? I only ask, as you have a Liitokala 18650 charge/discharge ( I know, coz i bought one on your recommendation ) and it does multiple cells :)
I use the following voltmeter displays, they work quite well: Red LED Display Mini Digital 2.5v-30v Voltmeter Tester Voltage Panel Meter For Electromobile Motorcycle Car
I wish you would go back to the type of videos you did 5-8 years ago. Battery testers, ev chargers and similar isn't something i jump and plan to see or recommend to orhers. I liked crazy flashlights, small china electronics without a real need, a music instrument of an Arduino and the "muppet". Those things were fun and educational.
Yeah, what happened to that CRT tennis game project? I was loving that one. And the OINK computer. That was awesome. Now it's all just car charging videos. I can't relate to them!!!
AliExpress absolutely refuses to send me anything. Everything goes fine until I enter the mailing address. Immediately after it’s entered I get “Transaction Terminated” I live in the US Anyone else experience this problem?
Yay, new postbag. Really missed that series. Always brings back good memories from 2016/2017 when I first discovered your channel.
The inductor would be part of a boost circuit to generate enough voltage to power the chip from a nearly dead 1.5V cell.
Yes, that's the conclusion I came to. In fact the LCD works down to 0.45V
@@JulianIlettHello mate I just got that battery you got from lidles in your other video from a while back ..thanks that was helpful.. do you do any vids on making your own batteries sir from cheap too free materials n cheap too free electrolytes I would love a chinwag if u got any ideas or intrested in that type off content...cheers
@@JulianIlett just managed too make a 7.6 volt 10 milliamp stack cell from charcoal n vinigar...I know 10 milliamp not much but my cells are small but hold for a long time you could series n parralel 100 off them in less than a shoebox...the voltage would be stupid you would have too tone it down but amps current yh low but very usable if talking LED but like I said this is purley charcoal n vinigar so it's like bottom bottom barrel power so far but yh if your intrested shout me...I think I could get an amp in half a shoe box which you just top up with salt water or vinigar once a week but yh not even started yet if fancy bit diff content for channel
Hello Julian 9:10, the gate of the right hand "mosfet" is isolated. The 2 outer pins are NOT connected, as you described.
Exactly that!
Yes as some others already noted, since the device has to be powered from near exhausted low voltage cells obviously the inductor must be part of a boost circuit to power it.
Brightness all over the place !...cheers RIP Calculon
On the 600W buck converter, the two diode outer pins were not commoned. One of them is isolated
Yes, you're right. Both devices on the heatsink have the same number - they're both MOSFETs. I'm thinking this might be a synchronous buck converter.
The volt meter will do higher voltages, one thing you failed to notice/mention is the 9v test points on the ends of the units.
yeah, i'd probably hook up there too, if it reads a 4ish volt OK
There's two versions of the digital one, the BT-168D (aka BT-168 Pro) will do lithium, the BT-168 won't (apparently). I've never checked what the 9v range goes down to, should be able to test a LiPo on that.
Only this week I acquired a Ronco Battery Tester from a local charity shop!
I'm assuming it uses a motor or Galvanometer for the battery power display, as there are no batteries.
I never knew they existed until this week ha
the BT168 Analog puts a load on the batteries (I have that one). I don't know about the digital one but open circuit voltage on an alkaline battery doesn't tell you much. It would need to put a load in order to make it useful.
Pretty sure that was a MOSFET not a diode - I dont think two pins were connected - looked like the left one had a keep out. Might be wrong.
Like the 18650 tester.
You're right - both devices are MOSFETs. Synchronous buck converter I think.
I assume the inductor in the battery tester might be in a boost converter to pump up a very low battery voltage to power the chip?
I would separate the two power resistors slightly so they aren't touching.
Edit: Yeah, the thermal image confirmed my fears.
The analog BT-168 has load resistors to check battery voltages under some load, but the digital versions (BT-168D or higher model BT-168 Pro, which can test Lithium batteries) apparently do not have these load resistors as they indicate voltage similar to multimeter.
Yay postbag!
I saw those battery capacity testers but i assumed it twsted both not just 1 and 1 for running it
I hope you realize there's a tester that can do up to 8S battery packs, search for
"Lipo Battery Low Voltage Buzzer Alarm Indicator Monitor Checker Tester"
Single display, it shows the overall voltage, then steps through each cell
The inductor in yours is probably a boost converter to power the display
Hi, What was the conclusion on the battery tester loading? If it's just powering the on board switching regulator then you might expect the load to reduce when the cell voltage is higher.
That analogue battery tester design has been around for at least 30 years unchanged 😊. I still have the one I bought from (probably) B&Q just after I moved into my first flat in 1992.
Good to know!
They were showing 9-volt batteries in the ad so I think your lithium ion is good to go
I agree, I think battery testers are better at telling when a battery is flat if they put a little load on them when testing them, like the old ones do(Not on purpose, they use current to deflect the needle). The deliverable current nosedives at the end of a AA battery's useful life, and I don't think that is as apparent if you don't put a load on them.
All prices on aliexpress are without VAT. Something worth mentioning when you quote prices.
Post-bag🙌👏
It was showing 9 volt batteries on the advertisement on your computer. So I don't see why you couldn't test lithium batteries because I'm sure it has a wide voltage range. Probably from 0.01 all the way up to probably around 11 or 12 volts on the battery tester.
It's interesting. The 9V input powers the circuit through a linear regulator. The 1.5V input appears to drive a boost converter - it works down to 0.45V (below that the LCD flickers and shows 0.00V).
👍👍
9:11 No?
9v battery shown in the listing…
I have the BT-168 tester. It's not bad for what it is.
Do you have grand plans for the 18650 tester?
I only ask, as you have a Liitokala 18650 charge/discharge ( I know, coz i bought one on your recommendation ) and it does multiple cells :)
Not really. I just liked the very detailed display on such a simple tester.
Sound
Why are the ad-revenues going down? Either less hits, or the advertisers are spending less? Or a new Google algorithm?
I think some of the ad revenue has been diverted to shorts.
If the psu is a flyback it is probably only good for 100 W.
Yeah. This is what we want to see, Sir !
it works with 9v cells... lithium will be just fine.
I use the following voltmeter displays, they work quite well: Red LED Display Mini Digital 2.5v-30v Voltmeter Tester Voltage Panel Meter For Electromobile Motorcycle Car
I wish you would go back to the type of videos you did 5-8 years ago.
Battery testers, ev chargers and similar isn't something i jump and plan to see or recommend to orhers.
I liked crazy flashlights, small china electronics without a real need, a music instrument of an Arduino and the "muppet". Those things were fun and educational.
Yeah, what happened to that CRT tennis game project? I was loving that one. And the OINK computer. That was awesome. Now it's all just car charging videos. I can't relate to them!!!
Hmm more money to support Chinese industry ;-)😉😜
Everyone supports Chinese industry - everyone who has a phone and/or a laptop.
@@JulianIlett Or a smart bulb, led strip. thermometer, digital alarm clock, power tool , cheap hand tool, expensive German named tools etc etc.
@@JulianIlett I know soon the way it is going everything will be Chinese made, including Climate change 🙂
AliExpress absolutely refuses to send me anything. Everything goes fine until I enter the mailing address. Immediately after it’s entered I get “Transaction Terminated” I live in the US Anyone else experience this problem?
man i really love this show, more more more
May I just add my 3 pence.
shooting