I suspect that Tesla also designed the battery swap capability into their cars because it makes a very effective service strategy. They can quickly take a pack out, run diagnostics, swap a bad module, and install it back into the car without investing much time and effort. It also makes it easy for them to offer a pack upgrade to current customers when the pack technology advances enough. Another source of revenue.
Mike On March 12, 2015 3:36:20 PM MDT, Ed Blackmond via EV <[email protected]> wrote: > >> On Mar 12, 2015, at 12:45 PM, Larry Gales via EV <[email protected]> >wrote: >> >> Actually, I have thought that battery swapping might make sense if >you >> simply lease the use of a battery, rather than own it. > >I completely agree. > >Consider the life of a battery pack. It might start out with a >guaranteed capacity of 60KWH (~200 to 250 miles). After some period of >time (maybe several years) it will no longer have this capacity, but >can be leased with a guaranteed capacity of 45KWH. After some period >of time it will no longer have this capacity, but can be leased with a >guaranteed capacity of 30KWH. > >This also gives drivers the option of leasing a lower capacity pack for >normal daily usage. When a larger pack is needed, simply swap to a >larger pack and lease it while needed. > >Eventually it will no longer be useful for mobile application, but >still adequate for stationary applications (e.g. grid stability for >alternate energy generation systems). When it is no longer useful for >these applications, it can be recycled into a new pack. The >electronics and the interconnects can be used directly, while the cells >cells can be recycled for their constituent materials. > >I think such a battery leasing model will be a good business >opportunity in the near future. > >Ed > >> As long as the >> batteries owned by a company remain within spec, say 90%, then it >does not >> matter what battery you have. You simply can forget about the >battery, and >> on those occasions where you need 2 minute full recharge, you can >have it. >> This would be particularity useful for long haul truck that can't >afford 30 >> minute stops every 100 miles >> >> On Thu, Mar 12, 2015 at 12:42 PM, Michael Ross via EV ><[email protected]> >> wrote: >> >>> That feature was designed in by foresight, because it could be. I >don't >>> think EM ever had it in mind as a broadly useful function. I have >heard >>> him pooh pooh it before. The CA legislature forced the issue. If >they had >>> done right they would have simply made Tesla eligible since they >were going >>> to offer the credits anyway. >>> >>> OR maybe they were hoping no one would actually take them up on it >except >>> maybe the H2 folks? >>> >>> On Thu, Mar 12, 2015 at 12:38 PM, Robert Bruninga via EV < >>> [email protected]> >>> wrote: >>> >>>> I always wondered why someone as smart as Tesla would stoop to the >>>> stupidest idea ever (battery swapping) for highway EV’s. Surely >they >>>> understood EV’s enough to know that EV’s generally charge while >parked, >>> not >>>> while in use. But then Superchargers make it possible for distant >>>> convenient travel… >>>> >>>> >>>> >>>> So how could Tesla be so dumb to invest in “battery swap”… >>>> >>>> >>>> >>>> The answer, is smarter than we thought… >>>> >>>> >>>> >>>> >>>> >>> >http://www.greencarreports.com/news/1097214_tesla-battery-swapping-useful-service-or-minimal-effort-for-extra-income >>>> >>>> >>>> >>>> It looks like all they had to do was demonstrate ONE working >battery-swap >>>> station and then they got full extra credit for the California >State >>>> requirement for full-range-replenishment in under 10 minutes. They >met >>>> that goal (one station) and then collected $66,000,000 in EV >credits! >>>> >>>> >>>> >>>> Not a bad return on investment in a side-show demo of stupid (but >>>> committee mandated) technology. >>>> >>>> >>>> >>>> Now if the public would just forget about “battery swap” as a crib >for >>>> gas=pump dependency for anything more than Forkllifts and other >unique >>> 24/7 >>>> daily operations, we can get on with EVs and fast charging. We >don’t >>>> need any more investor money spent down this rat hole.. >>>> >>>> >>>> >>>> Bob, WB4APR >>>> -------------- next part -------------- >>>> An HTML attachment was scrubbed... >>>> URL: < >>>> >>> >http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20150312/3612f53c/attachment.htm >>>>> >>>> _______________________________________________ >>>> UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub >>>> http://lists.evdl.org/listinfo.cgi/ev-evdl.org >>>> For EV drag racing discussion, please use NEDRA ( >>>> http://groups.yahoo.com/group/NEDRA) >>>> >>>> >>> >>> >>> -- >>> To invent, you need a good imagination and a pile of junk. >>> Thomas A. Edison >>> <http://www.brainyquote.com/quotes/quotes/t/thomasaed125362.html> >>> >>> A public-opinion poll is no substitute for thought. >>> *Warren Buffet* >>> >>> Michael E. Ross >>> (919) 585-6737 Land >>> (919) 576-0824 <https://www.google.com/voice/b/0?pli=1#phones> >Google >>> Phone >>> (919) 631-1451 Cell >>> >>> [email protected] >>> <[email protected]> >>> -------------- next part -------------- >>> An HTML attachment was scrubbed... >>> URL: < >>> >http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20150312/2cf7e87b/attachment.htm >>>> >>> _______________________________________________ >>> UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub >>> http://lists.evdl.org/listinfo.cgi/ev-evdl.org >>> For EV drag racing discussion, please use NEDRA ( >>> http://groups.yahoo.com/group/NEDRA) >>> >>> >> >> >> -- >> Larry Gales >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: ><http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20150312/ff2fe420/attachment.htm> >> _______________________________________________ >> UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub >> http://lists.evdl.org/listinfo.cgi/ev-evdl.org >> For EV drag racing discussion, please use NEDRA >(http://groups.yahoo.com/group/NEDRA) >> > >_______________________________________________ >UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub >http://lists.evdl.org/listinfo.cgi/ev-evdl.org >For EV drag racing discussion, please use NEDRA >(http://groups.yahoo.com/group/NEDRA) _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
