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Battery release system to prevent car EV fires. Imagine being Chinese and chilling in some tea shop eating a deep fried bat or something when a giant flaming lithium battery gets propelled at you.

1,132,178 次观看 • 6 个月前 •via X (Twitter)

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Hello Tata Motors I purchased a Tata Nexon EV (30 kWh battery pack) on 10 February 2024 for around ₹18 Lakhs. Tata claimed a range of 325 KM, but throughout my ownership I NEVER received more than 175 KM on a full charge. Now the condition has become even worse. My battery drains so fast that I can barely drive 90 KM per charge. After reporting this issue, even the service center admitted there is a battery problem. At the time of purchase, Tata Motors clearly promised an 8-year / 160,000 KM battery warranty and assured us that defective batteries would be replaced with NEW ones. But now, when the issue has actually occurred, they are trying to replace my battery with a REFURBISHED (second-hand) battery instead of a new one. I raised this issue in February 2026. It has been months, and despite continuous follow-ups, there is still no battery replacement and no proper response from Tata Motors. What is more shocking is that Tata keeps blaming driving habits for the poor range. But according to THEIR OWN meter, my average consumption over the last 6434 KM is 91 Wh/KM, which technically should deliver around 329 KM range. Yet in reality, I never received anything close to that. To make things worse, the car makes frightening noises while charging. Honestly, it feels unsafe and scary, as if something could go seriously wrong at any moment. And when I asked Tata about exchanging this problematic vehicle, they offered only ₹5 Lakhs for a well-maintained 1.5-year-old car purchased for ₹18 Lakhs. Is this a joke? My demands are simple: 1. Provide a BRAND NEW battery replacement instead of a refurbished battery. 2. Offer a fair replacement/exchange value for the vehicle. This has been the worst ownership experience of my life. Extremely disappointed with Tata Motors and their after-sales service. TATA.ev Nitin Gadkari Department of Transport Tata Motors_Cars

Nikhil Dadhich (Vishweshwar Suntwal)

143,097 次观看 • 1 个月前

Those investing in submarines today may be wasting money. A Virginia-class submarine, powered by an S9G reactor, has a submerged displacement of around 10,000 tons and costs approximately $4–5.8 billion. Its top speed is over 30 knots. Now imagine a much smaller reactor, with power and weight around 15% of the Virginia's, used solely to continuously recharge a solid-state battery bank. Solid-state batteries weigh about half as much as lithium-ion batteries while offering 2-3x more energy capacity. In practice, this means that with the same battery weight, such a sub could achieve roughly 3x the energy gain, In terms of speed, solid-state batteries deliver double or higher discharge rates (potentially 10–20C vs. 5–10C for lithium-ion), ideal for sustained sprints above 30 knots lasting many days and a cruising speed around 25 knots. All this with 15% less overall weight, much quieter operation on batteries alone, and the same endurance as a conventional nuclear sub. And the cost? A micro-reactor would be 15–25% the price of a conventional one, small, modular, low-temperature/low-pressure. This means that when a more modern reactor is needed, you simply swap the module. A micro-reactor paired with solid-state batteries could make a Virginia-class sub $1.2-1.6 billion cheaper, quieter, and leave far more space for weapons, additional batteries, or crew comfort. That's why this system would put all existing submarines at a disadvantage in terms of cost, space, and stealth. Those not adopting micro nuclear reactors can follow what the Germans, Japanese, and French are doing. The Japanese pioneered lithium-ion batteries with diesel chargers, giving their submarines excellent value for money. The Germans chose a fuel cell AIP system to recharge lithium-ion batteries, while the French opted for a similar Japanese-style approach with a battery configuration allowing up to 80 days endurance, making the new Scorpène highly competitive. Starting around 2030, production will shift to solid-state batteries, tripling the capacity of these conventional submarines and enabling silent navigation at around 25 knots for days,making them superior in stealth and speed to many nuclear submarines currently in service. Submarines powered by solid-state batteries, recharged via micro-reactors, fuel cells, or diesel, will be superior: better armed, cheaper, and stealthier than anything we know today.

Patricia Marins

288,841 次观看 • 7 个月前

This Chinese developer launched Llama 70B locally on a MacBook on a plane and for a full 11 hours without internet ran client projects. He was sitting by the window on a transatlantic flight with a MacBook Pro M4 with 64 GB of memory. WiFi on board cost $25 for the flight. He declined. No cloud API, no connection to Anthropic or OpenAI servers, no internet at all. Just a local Llama 3.3 70B on bf16 and his own orchestrator script. The model runs through llama.cpp. Generation speed, 71 tokens per second. Context around 60,000 tokens. Memory usage, 48.6 GiB out of 64. Battery at takeoff, 3 hours 21 minutes. And he gave the orchestrator this system prompt before takeoff: "You are an offline orchestrator running on a single MacBook. There is no network. The only resources you have are local files in /Users/dev/work, the Llama 70B inference server at localhost:8080, and a battery budget of 3 hours 21 minutes. Process the queue at /Users/dev/work/queue.jsonl (one client task per line). For each task: draft → run local evals → save artefact to /Users/dev/work/done/. Save context checkpoints every 12 tasks so you can resume after a battery swap. Stop only on empty queue or when battery drops below 5%." So the system knows exactly what resources it is running on. It knows it has no connection to the outside world for the next 11 hours. It knows it has finite memory and a finite battery. It knows the human will not intervene until the plane lands. The system runs in 1 loop. Takes a task from the queue, runs it through inference, saves the artifact, writes a checkpoint. Task after task, just like that. And only when the battery drops below 5% does the orchestrator automatically pause, waits for the laptop to switch to the backup power bank, and continues from the last checkpoint. Here is what the system actually writes in his log during the flight: "saved context checkpoint 8 of 12 (pos_min = 488, pos_max = 50118, size = 62.813 MiB)" "restored context checkpoint (pos_min = 488, pos_max = 50118)" "prompt processing progress: n_tokens = 50 / 60 818" "task 37016 done | tps = 71 s tokens text → /Users/dev/work/done/proposal_westside.md" Outside the window, clouds, blue sky, and no WiFi. On the tray, 1 MacBook, an open terminal on 2 screens, and an inference server on localhost. From what I have observed, this is the cleanest offline AI workflow I have seen in the past year: 11 hours of flight, $0 for WiFi, and the entire client queue closed before landing.

Blaze

1,838,219 次观看 • 2 个月前

You’re on a journey on this kind of lonely road with your car and your car suddenly develops a fault, You can’t call for help and your lines can’t be reached due to network issues, what do you do? Except the car will stop and the engine won’t come up again, please reduce your speed and accelerate softly till you get to a nearby town, if it is an overheating issue, keep driving, put the gear in the neutral position and switch off the engine and let the car keep moving, switch it back on when you have to ascend a hilly road and the car can’t move freely on its own again. If the battery signal comes up while driving, chances are that your alternator has failed, or the alternator belt is damaged, apply the same method and switch off your AC, radio system or anything that may drain the battery while driving till you get to a safe place. If it is a flat tyre, maintain a low speed till you get to a safe place to change and use your spare, keep moving. Yes!!! Damage that tyre till you get to a safe place, just keep moving and make sure you have a spare tyre always and it is in a good condition. If the engine suddenly goes off on top speed, chances are that a fuse is damaged and this is why I will make a thread on how to identify different fuses and how to have them fixed temporarily in case of Emergencies. If your car jerks or experiences a lazy movement while driving, it’s likely to be a fuel related issue, fuel pump most likely, switch off the engine intermittently and put the gear in Neutral position, keep moving… if the fuel pump rests for about 5mins, it’ll pick up back when you ignite the engine, this will/may at least take you to a safe place or where you can have access to network to make calls. If you hear strange sounds like knocking sounds or the oil signal starts to blink, relax and reduce your speed, keep moving. Manage it till you get to a safe place or can have access to network. If your gear/transmission system isn’t selecting well, apply the same method, reduce your speed but keep moving, slow movement is better than no movement, your life and safety matters a lot. Please note that there are some Mechanical issues that nothing can solve on the road except patience and just to pray to God for safety and help, for example, you run into a pothole unknowingly and the oil pan hits the road and your engine or gear oil leaks away, or your ball joint or tie rod head pulls out, I’ll suggest you leave the car there, roll up your windows and lock up the car and start trekking till you get network or help, staying with the car may make you vulnerable to attacks or attract unexpected company, just keep walking away from the car for safety. Most importantly, please stay safe and be conscious of your environment. Be friendly with your Mechanic too or any Mechanic you see on the road. Don’t manage faults in cars and risk traveling with it.

Wanjohn D-Mecho

436,198 次观看 • 2 年前