A former Tesla process technician, Martin Tripp, is tweeting internal emails, photos and vehicle identification numbers that he says are evidence of flawed manufacturing practices at Tesla's battery factory, and of product sold by Tesla that is imperfect, and could put drivers' lives at risk. 
 
 Tesla has characterized Tripp as a disgruntled ex-employee and saboteur in the past. 
 
 Tripp, in previous interviews, said that Tesla's Gigafactory took dangerous manufacturing shortcuts, and that Elon Musk had direct knowledge of these but failed to intervene. 
 
 The tweets were posted to Tripp's account Wednesday. However, Tripp took down his Twitter account by Thursday morning, his lawyer told CNBC. 
 
 The lists of vehicle identification numbers, which he wrote in the tweets, refer to specific cars that received batteries containing damaged cells that never should have been installed. 
 
 Tripp also tweeted pictures that he claims prove Tesla is storing waste or scrap in open parking lots and trucks at the Gigafactory, rather than temperature-controlled warehouses. He also shared screen shots of graphics that he says show a high volume of waste at the factory. ||||| Cristina Balan posing with the prototype of an electrochromatic windshield she designed and showed to Elon Musk in 2014. Business Insider 
 
 In early August, a former Tesla process technician, Martin Tripp, countersued the company. 
 
 Tripp claims that Tesla, which filed a lawsuit against him in June, falsely accused him of hacking into the company's operating system. He also alleges Tesla waged a smear campaign against him in order to silence his claims of poor part quality and waste at the company. 
 
 For another former Tesla employee, Cristina Balan, Tripp's story feels familiar. 
 
 Balan began working for Tesla as an engineer in 2010. In a series of interviews with Business Insider, Balan said she was pushed out of Tesla four years later. 
 
 Balan says this happened shortly after she and her seven-member interior-design team shared concerns with their superiors about poor part quality and waste they observed on the job. Balan sued Tesla alleging discrimination, retaliation, and other issues. A multiyear arbitration ensued. 
 
 Business Insider reviewed emails, testimonies, text messages, and other information from Balan's tangle with Tesla. 
 
 Here's how a once celebrated Tesla engineer — who used to work on top-secret projects for Tesla's top brass and whose initials were actually carved onto the battery of the Model S — says she wound up on the wrong side of the company. 
 
 It could be a cautionary tale for what Tripp is about to face. 
 
 If you are a Tesla employee or customer who has a story to share about a car or experience with the company, give me a shout at llopez@businessinsider.com. 
 
 A Saturday venting session spirals: 'I feel like a sheep in a slaughterhouse' 
 
 In March 2014, Balan and her interiors team had brewing concerns about Tesla. 
 
 They worried about design flaws in the cars and felt their concerns were being overlooked or mishandled by managers. 
 
 According to internal emails and testimony from the arbitration, Balan's team had every intention of taking its issues straight to Tesla's CEO, Elon Musk. 
 
 Musk had, after all, told employees that Tesla was not a hierarchical company. They should feel free to approach him whenever they deemed it necessary. 
 
 Before she scheduled a meeting with Musk though, Balan reached out to one of the heads of her department, Chris Porritt, who was Tesla's vice president of vehicle engineering. Porritt asked to meet with Balan and the team about their concerns. 
 
 Business Insider 
 
 The team met with him on a Saturday for about two hours. 
 
 There, they described an aggressive, high-pressure atmosphere, as well as a version of business as usual at Tesla that was full of part defects, opaque relationships with suppliers, and waste. 
 
 The engineers said they felt frustrated because they believed their immediate bosses might have been shielding them from contacting suppliers, making it difficult for the interiors team to finish projects thoroughly and correct design flaws. 
 
 Balan said she suspected this bottleneck was really just a way for her bosses to hide mistakes. For instance, her concern about a so-called rat hole — a gap she had found in the design of the Model S's roof headliner that separated the roof from the rest of the car — had been met with what Balan saw as clear resistance from her managers. 
 
 Tesla, she claimed, ultimately stuffed a piece of Styrofoam in the gap of the $100,000 car to fix it. And while the DIY-sounding solution didn't present a safety issue, Balan said it created a rattling noise in some of the vehicles that customers later complained about. 
 
 Where the "rat hole" would be, according to Balan. Business Insider At the Saturday meeting, members of the group shared instances when they felt their attempts to fix faulty Tesla car parts were thwarted by management. 
 
 One engineer said he had wanted to fix a problem with the Model S's driver's seat floor mat since 2012. As designed, the floor mat could interfere with the brake, the engineer claimed. 
 
 But he said that when he tried to investigate the issue with the supplier, his managers stopped him and either demanded to take over or asked him to focus on something else. 
 
 The engineer told the group that the still unfixed floor mats were a safety issue, even as Tesla had tens of thousands of cars on the road. Porritt agreed. Porritt also lamented that the company might have to scrap $90,000 worth of defective parts. 
 
 Tesla ignored repeated requests for comment on this exchange. 
 
 Porritt agreed with just about everything the team said during that long Saturday meeting. He listened when the employees complained about what they said was bullying by managers. He thanked them for meeting and said that what was happening on their team was certainly not "the Tesla way." He also said the team could trust him, and he promised to help find a solution. 
 
 Instead, in the following days, the team members were pulled into meetings with their bosses and pressured to recant their statements, according to text messages, emails, and arbitration documents seen by Business Insider. 
 
 "I feel like a sheep in a slaughterhouse," one engineer wrote in a text to teammates. 
 
 Another engineer who attended the meeting later testified that he felt pressured to deny his attendance at the meeting with Porritt and any complaints about the team's superiors. He said he felt that if he didn't, he might lose his job, and he claimed the rest of the team felt the same way. 
 
 Balan's final days 
 
 Tesla handled Balan differently from her colleagues. 
 
 In emails dated April 2, 2014, her managers and a member of Tesla's human-resources team discussed how to deal with her going forward, and, according to emails viewed by Business Insider, they did not see much of a future for her at Tesla. 
 
 Balan understood she had become an increasing headache to her immediate superiors she constantly clashed with, so superiors and HR discussed a plan to either coach her or determine other paths for her, according to an email. 
 
 They decided to check in with Balan about her health rather than any work-performance issues; she had expressed concern about it to a superior months before and had health issues during her first stint at Tesla. Then they would decide the best way forward, according to their correspondence. 
 
 "If for any reason we are unable to substantiate the health issue, we will need to then set a different plan of action," Tesla's HR wrote in the email to Balan's managers and Porritt. 
 
 Tesla ignored repeated requests for comment on this email exchange. 
 
 Balan ultimately left Tesla on April 16, 2014, less than a week after Tesla's counsel told her via email that she was the only person on her team who "accused" her managers "of wasteful spending and the covering up of that wasteful spending." 
 
 "You were the only one who made the accusation to Chris," Tesla's counsel said in an email. "You were the only one who made such an accusation to HR. Thus there is no reason for me to speak to the others who complained to Chris." 
 
 Balan said it felt as though Tesla wanted to go on as if the Saturday meeting with Porritt never happened and none of her colleagues had ever spoken up at the company. 
 
 Electric culture shock 
 
 In the arbitration that followed Balan's departure, Tesla claimed that Balan resigned in 2014 because she didn't get along with her bosses and couldn't get work done. 
 
 Tesla's lawyers argued that she complained often and was concerned with only her own designs. 
 
 A former colleague familiar with the situation who felt Balan was a "creative," capable engineer also said she was overly excitable and too intense. 
 
 But Balan maintains a belief that her resignation was prompted by a campaign to "push" her out of Tesla after she and her team complained about quality issues with cars. 
 
 Balan said she believes that even in the subsequent arbitration, Tesla found ways to continue to discredit and silence her. 
 
 Balan recorded conversations with her colleagues while at Tesla, but the former San Francisco Superior Court judge who presided over the arbitration would not allow any to be used in the case. 
 
 The arbitrator found that Tesla underpaid Balan by misclassifying her as an employee below her talent level. But he did not find that there had been any gender discrimination or that Balan was a whistleblower. 
 
 The defects she was concerned about, like the "rat hole," were simply not a safety risk to the arbitrator, and Tesla's witnesses also denied that the defects were severe. 
 
 Balan said she was offered to settle with Tesla "seven or eight times" and the money would have allowed her to stop working for at least a decade. But Tesla wanted Balan to sign away her right to speak about her experience, and she found that troubling, so she never agreed. 
 
 "We are living in an era of autonomous driving and artificial intelligence," Balan told Business Insider. "We cannot afford to have engineers on that level being afraid to speak up" when they see mistakes, she added. "We cannot afford this." 
 
 2 Teslas. Same Tripp. 
 
 To Balan, her story is a tale of two Teslas. 
 
 During her first stint at the company, Balan worked in the battery department. There, she said, everything was about pushing creativity and innovation and saving every penny the fledgling company could find. 
 
 But her experience on the interiors team felt different. 
 
 "As soon as the Model S came out the door and Elon realized how cool he'd become, everything went down the drain," she said. 
 
 She said she felt Tesla went from a scrappy startup with high integrity to one engulfed by Silicon Valley hype. 
 
 When a company becomes the hot company to work for and rich with funding, the type of people who flock to work there can change. Priorities sometimes change. And culture can change too. 
 
 "The reason Tesla is what it is is because it transformed from a company of innovation to a company of sales," Balan said. "The only thing they care about is how many cars they come up with per week. It doesn't matter what the quality is." 
 
 This opinion is perhaps why Balan saw so much of her story in Tripp, the former technician countersuing Tesla. 
 
 Like Balan, Tripp is trying to claim whistleblower status after he pointed out perceived issues with Tesla's production process to Business Insider. 
 
 He claims in his filing that the quality of Tesla's battery manufacturing is low — to the point of being dangerous — and that he fears batteries could overheat and go into what's known as thermal runaway. He also claims that Tesla's production process is so wasteful that it's not living up to its environmental mission. 
 
 Also, like Balan, he claims that now the company is trying to intimidate him into silence. 
 
 "I think they are just too full of themselves," Balan said of Tripp's situation. "They think Tesla can get away with everything. And it worked — up until now." ||||| John Moore / Getty Images 
 
 Editors Note: Martin Tripp's Twitter account has been taken down; the images he tweeted are no longer available. 
 
 "Are you ready," Martin Tripp tweeted on Wednesday evening, before sending out dozens of photos that he alleges came from inside Tesla. 
 
 Tripp told Business Insider he thought the photos were central to his legal battle with the electric-car maker. A former process technician at the company's Nevada Gigafactory, Tripp claims the photos support allegations he has made about the safety and quality of Tesla's parts, specifically the batteries that power Tesla's vehicles. 
 
 "I decided to send this info out because I have been humiliated by Tesla and Elon Musk," Tripp told Business Insider. 
 
 Tesla sued Tripp in June, accusing him of hacking the company and transferring secret information to third parties. 
 
 Earlier this month, Tripp filed a countersuit. He denies Tesla's claim that he's a hacker and says the company intimidated and harassed him after he was fired. 
 
 "As we've said before, these claims are false and Mr. Tripp does not even have personal knowledge about the safety claims that he is making," Tesla said in a statement to Business Insider. "No punctured cells have ever been used in any Model 3 vehicles in any way, and all VINs that have been identified have safe batteries. Notably, there have been zero battery safety issues in any Model 3." 
 
 If you are a Tesla employee or customer who has a story to share about a car or experience with the company, give me a shout at llopez@businessinsider.com. ||||| Photo: Getty 
 
 Martin Tripp is currently embroiled in a nasty legal dispute over claims he’s made about his former employer, Tesla. On Wednesday evening, Tripp began tweeting out details and photos about his time at Tesla and found himself suspended faster than you can say, “Infowars was an inside job.” 
 
 A former technician for the electric vehicle company, Tripp was fired by Tesla earlier this year and he was accused by Elon Musk of being a “saboteur.” A subsequent lawsuit filed by the company accused Tripp of hacking into “the company’s confidential and trade secret information and transferred that information to third parties,” and giving false information to media outlets. Tripp took his claims to the SEC and filed a whistleblower tip. He then filed a $1 million defamation lawsuit against Tesla. There’s a lot of bad blood between these two parties. 
 
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 Earlier tonight, Tripp took to his personal Twitter and began posting photos that he claims help back up some of the assertions that Tesla has denied. “Are you ready,” he asked his followers and proceeded to upload photos of what he claimed to be improperly handled cooling tubes, proof of damaged battery cells being reworked and installed in cars that were sold, and graphics about a high volume of scrap waste. Tripp made many other allegations but what might be his most jaw-dropping disclosure was a listing of Teslas that he claims were sold with “punctured / dented / damaged” batteries. 
 
 
 
 If you’re a Tesla owner, you might want to make your way here, here, here, and here to check out the VIN numbers of models that are allegedly carrying hazardous batteries. 
 
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 But not all of Tripp’s tweets are still on his page. He told Gizmodo that he’s been slapped with a twelve-hour suspension by Twitter and some tweets were deleted. In a direct message (he can still use DMs) he told us that he believes it was because at least one photo contained “an email [address] with Elon’s name.” We can confirm that one photo did appear to show what may be Elon Musk’s email address. Tripp showed us a screenshot of the notification Twitter sent him, and it does list the reason for his temporary suspension as violating its policies against posting private information: “You may not publish or post other people’s private information without their express authorization and permission.” 
 
 Here’s the image that contained Musk’s name beside an email address with the address redacted: 
 
 Screenshot: Martin Tripp 
 
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 Whatever the veracity of Tripp’s claims, you have to give him credit for just laying his case out there for all to see. We contacted Tesla for comment and a spokesperson told us: 
 
 As we’ve said before, these claims are false and Mr. Tripp does not even have personal knowledge about the safety claims that he is making. No punctured cells have ever been used in any Model 3 vehicles in any way, and all VINs that have been identified have safe batteries. Notably, there have been zero battery safety issues in any Model 3. 
 
 Tripp also finds himself as an example of how quickly Twitter is capable of responding to a violation of its policies while the social networks CEO is doing publicity 24/7 to explain how hard it was to suspend Alex Jones, the conspiracy theorist host of Infowars who is being sued for claiming the Sandy Hook school shooting was a hoax and inspiring his followers to harass and dox the victims’ families. When asked for comment on this story, Twitter did not immediately reply. 
 
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 It definitely appears that Tripp violated Twitter’s terms, and the fact that the company responded in a matter of a couple of hours sets a new gold standard for which we should all hold the company accountable. We’re more than curious to find out if its capable of evaluating violations so quickly when the personal information belongs to someone who’s not a billionaire. 
 
 [ht Lora Kolodny/CNBC]
– A former Tesla technician continues to cause headaches for CEO Elon Musk. "Are you ready?" Martin Tripp tweeted Wednesday before unleashing internal documents and photos he alleges show scrap piles, "bent" cooling tubes, and "reworked" M3 battery modules at Tesla's battery factory in Nevada, backing his claims of dangerous practices, per Business Insider. (His Twitter account was down as of Thursday morning, with Gizmodo reporting he had received a 12-hour suspension, ostensibly after tweeting Elon Musk's email address.) Before his account was suspended, Tripp also shared dozens of vehicle identification numbers of cars built with what he says are "punctured/dented/damaged" battery cells, allegedly the result of a robot that malfunctioned in February. "This is how @elonmusk and his business operates. He's taking money and fooling everyone," added Tripp, who is suing his former employer for defamation. "As we've said before, these claims are false," a Tesla rep tells CNBC. "No punctured cells have ever been used in any Model 3 vehicles in any way, and all VINs that have been identified have safe batteries." Yet Tripp isn’t the only ex-employee making such claims. Per Business Insider, former Tesla engineer Cristina Balan says she was silenced and left the company in 2014 after airing concerns about design flaws, part defects, and waste. "As soon as the Model S came out the door and Elon realized how cool he'd become, everything went down the drain," she says.