OK, but saying that doesn't prove it. I can find people complaining about issues, but those issues seem to have more to do with QC than design. Not saying QC isn't important - it definitely is. But to say that the design is flawed is different from saying they have manufacturing problems.
The design is flawed. Period. There is no manufacturing problem.
What do you think is the difference between science and engineering?
I'm a scientist. I know engineers. While they both have science classes and some of the training and vocations intersect, the end results are different purposes. There are few scientists that make good engineers, and few engineers that make good scientists. It is the entire reason they are different fields and specialties.
They do work well together to solve problems, however. For example, it often requires a good engineer to design and build the intricate machines envisioned/discovered by a good scientist who knows how they work - NMR/MRI is a case in point. No engineer could have even imagined this, while few scientists could have built the magnets, rf generators, and stable power supplies necessary for it to work.
No, but I haven't seen any evidence that Battle Born has either. Again, a YouTube video is not credible evidence. At most, it is sufficient evidence to possibly warrant further examination - not to come to a final conclusion. Unless I personally inspect a battery or someone I trust does, I don't give the issue a lot of weight. You might not be as skeptical about what you see on the internet, but I'm just telling you where I am, personally, on the subject.
You seem to be participating in this topic without fully reviewing the available data. I understand you hate YouTube, but many of them just show the insides of the battery, where the design flaws are instantly obvious. Some of the reviewers do comment on it, and point out what is bad and why it is bad, but you are free to make your own judgement.
If you have seen these batteries opened up, and still do not see the design flaws, then all I can say is OMG!
OK, what is that design defect and how do you know it exists?
I mentioned the two major design flaws. I know they exist because I have seen the tops taken off several batteries and can see inside.
And not to put too fine a point on this, but Battleborn themselves responded and said the batteries were intentionally designed this way. The reasons they gave are engineering malpractice and more CYA to prevent their business from going under, but these responses are also available, and you can make your own interpretation.
To reiterate, the first flaw is that there is a large 1/2" plate of plastic between the battery terminal (busbar in this case) and the main power lug (what is presented as the main terminal to the outside user). The only way current gets from the busbar to the main terminal is through a 8mm aluminum bolt and nut.
This is the equivalent of putting a 1/2" piece of plastic between your battery terminal and the power lead lug, and connecting the lug to the battery with an aluminum bolt.
The second design flaw is that 4 battery cells are built from 15 cylindrical cells in parallel each, and these are then connected in series for the 12V nominal. This isn't a bad design. What is the design flaw is that they decided the way to connect these plates of 15 cells in series was to put a thin piece of metal foil between them and push the plates together. There is no uniform clamping force keeping these plates together or in contact with the metal foil between them. To make this worse, there in not one, but 30 individual contact points between each pair of cell plates that need constant contact with the metal foil.
Mark
