EEVblog #751 - How To Debunk A Product (The Batteriser)

[AndyC_772]

Whats the short circuit current of an AA battery...?  Approaching 10A...?

Easily; I've had over 10A out of a fresh AA battery during short-term fault condition testing.

[Mr.B]

If I had the test equipment to do such a test I would shoot out in the morning and get a new Batteriser Energiser AA battery to test.
I don't know if my Maynuo M9710 load will be able to log the current curve accurately enough.

I think I might just have to have a go at that in the morning...

[samgab]

If I had the test equipment to do such a test I would shoot out in the morning and get a new Batteriser Energiser AA battery to test.
I don't know if my Maynuo M9710 load will be able to log the current curve accurately enough.

I think I might just have to have a go at that in the morning...

Yeah please do... I've been seriously considering purchasing a Maynuo electronic load (M9711?), so I'm interested in your results. Perhaps try discharging various different fresh AA Alkaline cells at various high current loads like 10A, 8A, 5A... Very interesting stuff.

[Jay_Diddy_B]

Hi,

Have a look at this message: https://www.eevblog.com/forum/blog/eevblog-751-how-to-debunk-a-product-(the-batteriser)/msg809012/#msg809012


In this post I presented the results of finding the maximum power point of an AA cell at various states of discharge. I used an HP 6060A Electronic Load controlled by PC. Starting with a fresh cell I measured the maximum power point by sweeping the load, I then discharged the cell by 100mAh, and repeated until the cell was depleted.

Here is a graph showing the discharge current during the experiment. Only the rising edges are valid, I didn't have any data points showing the current returning to 200mA between the sweeps:



If I add the missing data points the graph looks like this:




The load resistance was swept from 1 Ohm to 0.2 Ohms during each sweep.



Most boost converters do not 'play nicely' on the left side of the maximum power curve. On this side of the curve as you increase the duty-cycle the output will drop, eventually shorting the cell, a condition that they can't recover from.

Regards,

Jay_Diddy_B

[Jay_Diddy_B]

Hi,

Here is another graph obtained from the same data. It shows the maximum power that can be extracted from an AA cell versus the state of discharge:



This is very fundamental. You cannot get more power of the cell than is shown on this chart.

Regards,

Jay_Diddy_B

[mikerj]

That looks like a nasty bit of corrosion from a leaking battery

[ccs46]

That looks like a nasty bit of corrosion from a leaking battery

a common effect from over-exhausted batteries


Sent from my iPhone using Tapatalk

[Fungus]

That looks like a nasty bit of corrosion from a leaking battery

One that's been over-discharged by a voltage booster with no low-end cutoff?

[ccs46]

That looks like a nasty bit of corrosion from a leaking battery

One that's been over-discharged by a voltage booster with no low-end cutoff?

[rx8pilot]

I am seeing Batteriser posts in my sleep now. I had a dream that I was in the year 2028, logged into the forum and was reading this thread on page 1.26x10⁸

[SL4P]

NEW BATTERISER PHOTO
Jay_Diddy_B

Is that BOOSTERISER equipped battery - LEAKING & CORRODING ?

[isaiahA]

this post is still active!
batteriser is still a scam!

[rich]

Meanwhile, over on the Batteriser Facebook page we have:




Let us see how long the message about the trademark dispute lasts.

Mia Micra   

Regards,

Jay_Diddy_B

And... it's gone. Not just the comment, the whole image. So after being called out on IGG for not having posted images of new batterisers in production, they posted the hairy green rendering and then deleted it soon after. Net photos posted since promise = 0 

[LabSpokane]

If, by now, Bros. Roohparvar cannot even show photos of assemblies or parts thereof, I'd say it's pretty safe to assume that none will be forthcoming. The whole trademark dispute could actually be relatively simply resolved by EDM-ing the logo out of the stamping dies, milling out the logo from the existing plastics and applying a sticker in its place. The logo on the sheet metal should have been pad printed or laser marked from the get-go.

It really looks like the pittance of cash they started with has been burned through and all that's left is to wait for their web-hosting plan and domain registration to expire.

[EEVblog]

March


So they are going to ship the ordered Batterisers, and then later in the year ship a free 9V one to all the backers. With what money? They must have bugger-all left if they ever ship anything.

[SL4P]

"...our valued customers..."

They're not your valued customers yet Bobby!
They haven't received what they purchased.

[Fungus]

"...estimating sometime in March to be out ship out data"?

What happened to the "...we are very confident of shipping them in the next two weeks" that they were posting two months ago? 

(oh, right, it was the landslide that got them!)


PS: Does nobody at Batteroo own a camera?

[Godzil]

The only they have takes pictures upside down

[Jay_Diddy_B]

Hi,

Today's entertainment comes from the Batteriser Facebook page:





From the Batteriser Facebook. We have some link to a website offering guidance on getting an intern position.

And a comment from Mia Micra offering his skills. Subtle, love it !!


Regards,

Jay_Diddy_B

[Fungus]

And a comment from Mia Micra offering his skills. Subtle, love it !!

So funny.   

PS: Has to be a Brit who posted that. It's too subtle for any other country.

[rrinker]

 Maybe - I can be pretty sarcastic like that. But then I DO love Brit humor, which leaves many friends and family wondering what I find so funny at times. Fawlty Towers and Are You Being Served among my favorites.

[AF6LJ]

"...estimating sometime in March to be out ship out data"?

What happened to the "...we are very confident of shipping them in the next two weeks" that they were posting two months ago? 

(oh, right, it was the landslide that got them!)


PS: Does nobody at Batteroo own a camera?

Did they say what year???

[rrinker]

 I don't think they mentioned the year when they made the November promise. So I guess technically they haven't missed any deadlines. If they wait long enough, the technology may catch up to where the device is small enough AND can handle any current that the bare battery can. Not holding my breath though. Once we get past the year line though, I think we will lose our entertainment, most of the funders will write it off as another bad investment if more than a year goes by with no actual evidence of production.

[AlxDroidDev]

(...) most of the funders will write it off as another bad investment if more than a year goes by with no actual evidence of production.

And Bob Roohparvar will be free to create another scam, another fraudulent crowdfunding project, because most backers won't even remember his name after all this. Give it enough time and all this batteroo scam will be forgotten.

[rrinker]

(...) most of the funders will write it off as another bad investment if more than a year goes by with no actual evidence of production.

And Bob Roohparvar will be free to create another scam, another fraudulent crowdfunding project, because most backers won't even remember his name after all this. Give it enough time and all this batteroo scam will be forgotten.

 Same with so many things - to far too many people, "history" is just a meaningless word.