I barely remember my name these days and what I do remember may have been manufactured in my dreams. I kinda recall something around 85% SOC was his favorite number but the rest is foggy.I think our short attention span is a bigger factor than believability.
Just because we have one doesn’t mean we have to listen…Didn't we have a Li-ion battery expert on the forums that explained his charging strategy and how to make the cells last forever?
I also heard he doesn't follow the advice on how to make the cells last virtually forever, but he still sticks to the charging strategy based on what he has seen over 12 years of cycling a variety of Li-ion chemistries.
If you mean changing out the battery pack on a vehicle made in 5 or 6 years, sure. If you mean swapping out the truck's battery pack, who do you think is going to invest money in providing that capability on a 5 year old truck that is working fine? Nobody.
I do share that hope. I just wonder if in the absence of regulation from folks that are too far behind to regulate, manufacturers will go along with it. Remember how easy it was to replace batteries on smartphones then it was not. Tesla batteries are more difficult to work on today than they used to be as well. Manufacturers like GM and Ford that do not have confidence in their tech yet, make things more reparable so they can manage problems during warranty. With those cars we may have a chance third party can do something down the road. Tesla is more like Apple. They glue the whole pack together and after warranty, any problem with the pack and you will have a hard time justifying fixing it rather than getting a new car. The recent model 3 guy paid $9K for a refurbished battery with one year warranty. Tesla has no interest in making it easy or cheap for you to keep your car after warranty. It is just a giant iPhone. Unless smart third party hackers get into it, it may be challenging. Better batteries will likely have different chemistry and may not work with the old BMS. The good news is, BEV mechanic is not that complicated so if the existing software is propriety and can not be messed with, the new battery potentially can come with a new brain if the old one can not be hacked. That will likely happen for high volume cars like Model 3 and Model Y. But it may be 10 years before we are looking at something like this. Solid State May be 5 years out for mass production and another 5 years before it is cheap. By then our Lightnings May be ready for upgrade. If I am still around, I could definitely enjoy an upgrade; a lighter 500 mile Pro with faster charging.
That would depend on the cost and an owners need to recover/add range. Ford already changes out battery modules so we know that is possible and the more it has to be done will provide information on how perform that process quicker and at less cost.
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I’d like to know where he got that information. The FCSP is UL-listed and the listing standard includes tests for internal temperature rise.
He told me that he had to answer another customer's complaints that his FCSP was overheating and he personally observed the temperature rise over a 6 to 8 hour period charging at 80 amps. I presume it was in Texas summer heat as he told me this back in July or August. He disassembled the device and found the backplate extremely hot to the touch. IIRC, he lamented the lack of any ventilation and said other chargers had better provisions for air cooling.
He has no way of knowing if the observed “extremely hot to the touch” is problematic.
