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Toshiba Satellite P100 Battery

  • fasophiafrance
  • 2016年6月8日
  • 讀畢需時 11 分鐘

Hydrogen is an energy carrier and not a primary fuel source on this planet. Maybe out somewhere in the universe, but not on a terrestrial planet. When you add that all up, it turns out that the amount of energy in per kilometer driven is just terrible. It’s way worse than almost anything else you can come up with. Which I always suspected is one of the reasons why the energy companies have been big proponents of it.

When we were raising money the first time, we had very carefully gone through the math to understand fuel cells because there was a bunch of money going into fuel cells at the time and we also looked at biofuels and ethanols. We sort of went down the whole list to figure out what the most energy efficient system was, which turned out to be battery electric cars.

When we would go to these VCs , we had a whole slide deck on why fuel cells were a bad idea, and about half the VCs would get to those slides and they would say, ‘Oh, skip this. We know it.’ And actually, one of them used the word ‘scam.’ But the other half of the VCs were quiet. Then they asked lots of questions about it, and they’d have us go back over the slides again. Because they had, in fact, invested in fuel cells. All of which went out of business.

GM is not the most well-loved brand among the money people. If you’re successful, you tend to buy a Mercedes or BMW. You’re not going to buy the latest GM vehicle . . . yet the people who were leasing the EV1 in California were in the top one percent. They were clearly not trying to save money. Gas was at about a buck fifty a gallon at the time. They literally were spending more at Starbucks than they were at the gas station, and yet they were leasing electric cars, so they were doing it for some other reason.Literally every driveway had a Porsche and a Prius. They had traded in a BMW or a Lexus and replaced it with a Prius. They were making a statement. They wanted to be less a part of the oil economy.

We looked at that and said shoot, any new technology is going to be expensive, we’re going to come in at a high point. What extra value can we deliver? And it turns out electric cars are really, really quick off the dime.The mathematical case.It’s all high school math and physics, really. You’re trying to figure out how much energy it takes to accelerate something. How much friction you have on the wheels. An estimate of the aero drag based on the typical sports car. You know, we didn’t have the actual design. You could make a pretty good guess at how heavy the vehicle is going to be. The spreadsheet predicted what was possible through the math. That’s just amazing to me.

Rampant automotive outsourcing proved perfect for Tesla.The more we researched the industry, we discovered that over the previous 30 years, the car industry had gone from being vertically-integrated — the most famous being Ford, which literally would take in iron ore and produce Model Ts at the other end — to the current model, where the car companies simply do final assembly. They make their own engines, but everything else is done by other companies . . . And even some of the final assembly was completely outsourced as well. At that time, all the BMW X3s were being made by a company called Magna Steyr out of Austria. BMW had very little to do with it. Magna Steyr built all the cars. The Saabs were being done by Magna Steyr. A couple of the other American car companies that had European versions, Magna was building. So we knew it was possible to go to a company like Magna and say, ‘Ok, here’s the drivetrain, and the suppliers are going to be shipping you parts. Can you screw the thing together?’

Magna was too “magna” to bother with little Tesla. Enter Lotus.Lotus had experience making low-volume sports cars, and had experience doing outsource manufacturing. They had done this for GM. They had made the Opel Speedster. And a Vauxhall something-or-other. So they had a legal structure that could accommodate us. And they had this idea on the production line, that some of the cars they were making were Lotus cars, and then some for other companies.

But little Tesla had a large-scale appetite for batteries.At the time, every laptop had these 18650s, and every camcorder. We were familiar with them from the ebook days. We thought, ‘Let’s use these.’ I thought that was insane. There were going to be thousands of them. But the more we thought about them, this was a great thing because they were commodities, made my dozens of different companies around the world — not all of them the same quality, but the same form factor — and that’s what you want. If you’re a buyer, you want to have lots of choices. You don’t want to be locked into one particular weird format that only one company makes. You want to have lots of competition all beavering away to make those 18650s cheaper and better for you. So the whole chicken-and-egg problem around specialized automotive batteries goes away, because we’re just buying these laptop batteries.

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Now, it turns out that laptop batteries have to be handled very carefully when you combine a whole bunch of them together. And the battery companies really, really didn’t want us to do that. They did not want us to put more than seven of them together, because there is a chance of a fire. If you mistreat then, you can get them to catch fire. They don’t explode, but they kind of catch fire . . . Sony quite famously had a whole set of laptops that would spontaneously burst into flames.

The Roadster would require about seven thousand per car.So battery companies really didn’t want us to do that. But eventually we convinced them that we know more about how to keep batteries safe than they did, and so we got a supply agreement worked out. It turns out of you go to sales guy and ask, ‘What is a fantasy customer for your batteries?’ The answer is about seven batteries per user.

And then say, ‘We think your market is a thousand times larger.’ If you can convince even a low-level salesman that their addressable market is really a thousand times larger, you will get a call from the CEO of that company, no matter how big the company is, asking, ‘What’s this thing about a thousand times larger market?’ So we eventually convinced several battery companies to work with us. It helps that we had by far the best safety data. Because nobody else had really tried it.

Ready to pitch the Shark Tank? No. First, some dress rehearsals.We used some VCs who were friendly to us, but knew they wouldn’t invest in us. For example, their fund only invested in internet routing, or biotech. So we know we were completely outside of their investment space. But we called them up and said, ‘Hey, we have this crazy idea, and we want to pitch you guys. This isn’t a pitch that you’re going to have to actually respond to, but we’d like the feedback.’ It turns out that if every day, you hear nothing but pitches about internet routing, if someone says they’re got this crazy idea for high-performance electric sports cars, all the partners will show up if you provide lunch.

So they gave great feedback, asked quite insightful questions. We thought we had all our ducks in a row and all of our answers figured out, but they would ask these questions we didn’t have answers to. So we would go back and re-think it and re-tool. And that’s how we honed our pitch before we actually used our silver bullets with the VCs that we thought might fund us, because you only get one chance, really.

Unanimity in a big firm is so hard to achieve. Smaller funds? A bit easier. We figured we could probably get a couple people to say yes. We lined up money from SDL Ventures and Compass Technology Partners because they were relatively small funds with only one or two deciding partners. And of course, various friends and family.We pitched Elon as a super-angel. We went down to SpaceX and did the pitch. SpaceX was just a little startup, years from its first launch. We pitched on a Thursday or something. Then I was in Washington DC all weekend. I was peppered with questions by Elon over the weekend and then into the beginning of the next week. After a few more days: He said, ‘I like this. I’m really concerned about oil consumption as well. I get the vision, and where you’re coming into the market. I’m in.’ It was exactly up his alley.

The test cars had a two-speed manual transmission, which we didn’t think would be hard to source. The car industry was making manual transmissions for a hundred years. So we contracted with a small transmission house. Now, we had a lot more torque than they were used to, but we figured, ‘How hard is that?’ It was not something we really focused on because we had a supplier that we thought could deliver. But their transmissions just didn’t work. They couldn’t shift, which was unfortunate for us.

We then contracted with another, a much bigger auto supplier to build transmissions, and we spent lots and lots of money with them. We looked pretty good initially, but we put them on the durability track, we put them on our dynos, our test fixtures in the lab — and they all begin to break. And they all break in different ways. That’s not good. If they all break in one way, you can deal with it. But they’re really not breaking well.

By this point, everything else is done. We’ve gotten through the federal motor vehicle safety standards. We are essentially ready to ship, except we don’t have transmissions that work. This nearly killed the company. It was also in 2007, financing was starting to get a little skittish, and here was this huge — it was the first milestone that we missed in a big way. Everything might have been a little bit more expensive, or a little bit late, but there were conscious decisions along the way that did that. We had decided to make the car better, or change the specs. Everything along the way was conscious. This one was just a screw-up. And it just wasn’t in our core competency. We were dealing with one of the largest transmission makers in the world. They should be able to make a transmission that works, right? We didn’t understand how dangerous that was.

As it turns out, of course Moore’s Law is thankfully ticking along. The state of electronics had improved. We could increase the power we could deliver to the motor . . . and get to a one-speed transmission. Which is just a reduction.Our new supplier was awesome. In record speed, produced a beautiful transmission, and that’s what we ended up shipping. We shipped late. Our customers had been waiting for years.TeslaMondo note: The first Roadster customers took delivery of cars with the inferior tranny, on agreement that Tesla would upgrade when the new one-speeds became available. That worked out perfectly for all.A mouse among the mastodons.

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We figured that if we were successful, we would change people’s perception of electric cars, that they weren’t these lame golf carts. That people would say, ‘Oh, if I ever get rich, I want one of those electric cars.’But in terms of the other car companies, we thought they would wake up and say, ‘Wow, this is really, this can be done, these can be really compelling vehicles,’ and there would be some amount of space race, basically, to get into the electric car business, and we would have to deal with that as it went.And we could deal with that in a couple of ways. We might be suppliers to some of those car companies. We figured we would have more experience, and more electrically-driven miles than anybody else in history, by the time this became a hot thing, so we would be the world’s experts in that, and this would be a good place to be if all the car companies were trying to be in that space, so there would be lots of potential deals, and, who knows, an acquisition? We’d have lots of options. And if the car industry really decided to be competitive with us, we also felt that Silicon Valley could out-compete them, because they just move at a much slower pace.

I don’t think any of us really imagined that they would move as glacially slow as they really are. I mean, they’re just now, finally beginning to get with the program. And still their technology really just isn’t as good. And, you know, they have huge resources and tremendous experience certainly in making cars. I certainly didn’t expect them to take this long to wake up and begin to take electric cars seriously and begin to produce competitive products — which I think plays very well for Tesla.

If you’ve been around for a long time and you’ve done things the same way, and you’re making money — it’s not like you’re failing — there’s a huge resistance to taking risks. Because that could impact your division’s numbers or your career. It just makes it very hard for innovative ideas to infiltrate these big companies. In Silicon Valley, we don’t have any hundred-year-old companies.

UPDATE: Musk just spent a VERY long time at the shareholder meeting tonight (5/31) waxing nostalgic and telling gallows-humor anecdotes about Tesla’s garage days. It’s a reminder that there’s a lot more to the story than just Tarpenning’s version. Even Ashlee Vance’s book missed some doozies. This would make an absolutely divine motion picture. Now to find a suitable producer/director.Battery life is always a crucial part of any PC, whether it’s old or brand new.We’ve already explained some techniques to preserve power on Windows 7 but what about Microsoft’s latest addition Windows 10? Thankfully if you’re using the new operating system, there are a number of simple tips that will help you save on power so you can continue using your PC that little bit longer.Watch the video above to see some of the tips in action and follow our guide below for more details.Tip 1: Turn off wi-fi and Bluetooth Windows 10’s new Action Center makes it easier to switch off connectivity options such as wi-fi and Bluetooth which can drain battery life.

If you don’t need or Bluetooth on all the time, go to the Action Center by clicking the small square icon near the time in the bottom right, and click on Bluetooth to deactivate them so that they’re no longer lit. Older machines may not have Bluetooth, in which case you won’t see that option.Wi-fi is usually used a lot of the time, but if you don’t need to be online for a while (perhaps if you’re writing a letter using a word processor) you can always click the Wi-fi icon to turn it off, which will save some battery as well.

Alternatively, if you want to switch all connectivity options off for a certain period of time, click Airplane mode and it’ll cut off all connections for you. When you want them back, simply click Airplane mode again.For laptops that aren’t plugged in to a power source, Windows 10’s new Battery Saver is a great way to preserve some of your machine’s juice.Battery Saver does what its name suggests by reducing screen brightness, stopping push notifications and preventing apps from running in in the background.Battery Saver is automatically set to kick in whenever your battery falls below 20%, but you can switch it on at any time (if mains power is not connected) from the Action Center.Got a USB stick plugged in all day but not using it? Remove it! Even if you’re not actively using it yourself, your PC will still be powering it.


 
 
 

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