| EEVblog > EEVblog Specific |
| EEVblog #751 - How To Debunk A Product (The Batteriser) |
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| zapta:
Dave, at the ~6.20 mark you ignored the '... to many devices' part of the sentence. Another saving can come from lower current at the high voltage period of the battery life, assuming high dc/dc efficiency. |
| Artlav:
I wonder why haven't they made a real product instead, namely boosting a NiMH battery from 1.2V to 1.4V? Many things don't work too well on rechargeables, and many people don't pay attention to them enough to stop using them before they are below the safe discharge voltage. Make a Batteriser-like clip on for a rechargeable battery that boosts it to 1.4V and cuts off at 0.8V cell voltage, and you'd have a real, good and useful product that will easily extend rechargeable battery total life by a couple factors on average, and discharge time by a good fraction quite likely. Instead, they go for a pure scam. Just why...? |
| ebastler:
Hey, I am convinced the Batteriser will work as advertised! Just look at their claim 1 of their patent application, https://www.google.com/patents/US20120121943: --- Quote ---A battery sleeve for extending the operational life of one or more batteries, comprising: a positive conductive electrode; and an insulating layer extending below the conductive electrode such that when the sleeve is coupled to a battery, the positive conductive electrode is positioned above the positive terminal of the battery with the insulating layer electrically isolating the positive conductive electrode from the positive terminal of the battery. --- End quote --- Just insert an insulator between the battery terminal and the connected device. Darn if that doesn't extend the battery life by at least 800%! :-DD (Yes, I know. It's just a patent application, and you always start with ridiculously broad claims -- gotta try what you can get away with... But I have not seen a claim construction this ridiculuos in a while!) |
| tchicago:
Folks, remember good ole days of cell phone "antenna boosters"? When every single average Joe was truly convinced that attaching a sticker to the cellphone was drastically improving the cellphone reception. And it was impossible to prove otherwise, because "my cell reception just became a lot better". Oh, yeah, and you were supposed to attach the sticker under the battery. Those were the days... and they are coming back. There is some psychological phenomenon of trying to justify a purchase even if it was a complete mistake. Bread and butter for scammers of all kinds. V2 product will probably be inserted between the smartphone battery and the smartphone. :-DD The smartphone discharge pattern is highly randomized by a lot of external factors, so even though the device will do exactly nothing, it will be hard to make a valid before/after battery life comparison outside the electronics lab. |
| erfly44:
Hi Dave, and all, I do agree with Zeph, the more the current drawn, the more the ESR resistance effect degrade the performance of the Alkaline battery. So the test with a lab power supply doesn't reflect the reality. For example, my Sony TCD-D8 indicates 'low battery' when the voltage of the cells is between 1,284V and 1,288V!!! http://synthelectro-fr.blogspot.fr/2015/05/alternatives-aux-piles-alcalines-15v.html (in French, sorry) In fact, when the device use a lot of milli Amps, for example greather than 100mA, NEVER use Alkaline Battery but lithium battery, the power density and the constant voltage is incredibly better! For very low power devices like remote control, low power hf like NRF components, you can use Alkaline battery, and better, the very low cost battery because they fall very quickly under 1.1V, so you are sure to use it TOTALLY, that is never the case of the Duracell... And about the Batteriser? The problem isn't there, but I am curious about the suite! And Dave : I like a lot your work and never miss a video ;) |
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