i'm trying my best to not feel guilty after seeing the amount of work mudder spent making a safe heater solution for folks, when it gets cold out it's human nature for people to take it too lightly. I have people around me every year that procrastinate for cold temps because it's a bear to deal with.
I wouldn't feel guilty about it. Sub zero pack heating is a fair ask, and now it exists.
I'm still amazed Honda doesn't design it into their vehicles that use these same modules. However, they know more info about how the cell handles cold weather, and also they're probably not worried about maximizing battery life as I am... their engineering team is probably designing around the warranty expiry, whereas I'm wanting to keep these cells working as long as possible.
it's super sad when these cheap overseas extension cords/heaters have become an everyday part of people's lives and ultimately their eternal fate.
It saddens me that so many people are so comfortable with cheap crap. It took too long for me to understand why a $300 drill costs $300.
all it would take to wreck mudder's dream is for someone to get lazy and last minute run to the dollar store and buy the cheapest thing they can get their hands on.. when those things run non stop out in a cold garage/ possibly attached to the house/ it is a HUGE fire hazard. my biggest fear is they would try to cover up the facts.
If I've learned anything from Tesla, it's that lithium car fires aren't good for brand image. I am very conservative with the cells. In cold weather the pack heater will add to that safety margin.
i have poked around and researched plenty to know anything mudder sells has safety as a number one top priority to cover his end. however the image it would portray would wreck it for everybody. If people don't like me for bringing it up, i'll deal with it. if mudder doesn't like me bringing it up, i will listen, because i respect his intuition.
I am very safety focused. This stems from having to pass each product design through NI's internal safety team. All products operating anything above 30 Vac / 60 Vdc had to pass their rigorous gauntlet. I honestly miss having a qualified 3rd party engineering team audit my work for safety.
I have zero issues with anyone bringing up any potential issue related to safety, whether or not an issue actually exists.
but i want to see his dream have a happy ending where he helps all these people have simple solution for their own benefit. my insight has literally paid for itself with gas prices and has helped me pay bills and keep the refrigerator stocked with food. I love the community aspect and how people are fighting to keep these cars on the road. Now that light has been shined on the subject i pray people think safe and prepare for cold.
I'm routing for "happy ending", too. If not, worst case a litigious plaintiff is going to get enough raw materials to build as many LiBCMs as they want... if anyone is still buying them after this hypothetical Linsight bonfire. I would hope it never came to that.
I certainly haven't 'saved' any money with the LiBCM project, but I'm having a great time designing whatever I want. It's so refreshing not building someone else's dream... in a previous life as CTO at a startup, even though I designed the product roadmap and was super passionate about the application, it was ultimately not entirely my dream. I loved it, but it wasn't 'mine'. LiBCM is 'mine'.
I could also care less if i get black listed from libcm fomoco heater if it's too hard to make safe for all of these reasons.
I haven't talked about it much, but I actually developed and tested the FoMoCo heater solution in parallel to the 5AhG3... it's presently installed in my car and working well. Next time I take the pack out, I'm going to see about adding a thin insulation layer underneath the aluminum tray... but otherwise the concept works and just needs some fine tuning.
i bought 47ah batteries with high hopes, but if it is too difficult, i wouldn't blame the man one bit for pulling the plug on it. I don't want to be that burden and am still willing to support him however "if i can".
There's 0% chance I pull the plug on FoMoCo. All subsystems in my prototype unit are 100% where I want them, and I'm probably 90% done designing the hardware I'll end up selling next year. The only hardware I still need to finish is laying out the daughterboard PCB (which is required for the 1500 watt charger, and also included in that upgrade cost).
FoMoCo is 100% happening. As is the FoMoCo heater.
i know it doesn't look like im supporting him to the non heater crowd but i promise it's for everybody's good.
I'm seeing your support every time you post. I really enjoy your feedback, banter, encouragement.
Now i'm stressing that he is going to have to respond, and i don't want there to be any tension over the matter. period.
Edit: forgot to reiterate that priority at the moment is getting patient existing customers out of beta as they very much deserve it.
First heater PCBs, then final push to exit beta. Honestly I'm a bit perplexed that beta customers are so eager to stop updating their firmware. I can say for certain that until I'm confident there aren't any major firmware safety issues, LiBCM will retain the time-based firmware expiration. Maybe I'll increase the period from 40 to 90/180 days, but it just doesn't make sense to risk customers never updating the firmware again. I like that beta customers are forced to update firmware... it all but guarantees older LiBCM firmware won't exist.
Ideally LiBCM would support automatic over-the-air updates, but that feature would require an entire engineering team, per-month wireless data fees, etc. I'd rather focus on the core product, with the minor inconvenience that beta customers need to spend 5 minutes every month loading the latest firmware. It's a small ask. Certainly I could improve the software experience, but again that's attention I'd rather focus elsewhere for now.