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Posts
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By G. David Felt · Posted
Yes all but the full size are true 400V and according to their Ultium website they are 800V designed but purposefully throttled at 400V due to the current infrastructure not being ready for 800V. The full size is GMs hybrid version that supposedly could be turned on to 800V but a choice was made to go parallel for charging speed due to the larger than normal battery packs. I honestly do not expect GM to actually push out a software update on the full size now that 800V DC fast charging is pretty common all over, more so on the west and east coast than the Midwest. GM and Fords failure is to not accept that the technology would transform so much faster which is why the Koreans are winning the EV tech battle especially being competitive with the Chinese. Ford CEO even admits that it was a mistake to not go 800V and GM while stating that generation 2 of their EV platform will be 800V across everything and could be higher makes me wonder if they really will push forward with better tech or lumber along rather than lead the industry. While rare, we are already seeing 500V and above chargers coming out installed rather than additional 350V DC chargers. ChargePoint showed off their 500V chargers which I posted the press release about a while back and starting in January they will start updating all the oldest DC ChargePoint chargers with this new speedy unit that also has cut proof cables. Pretty much I feel the industry needs to move to 1000V EV powertrain systems at least if not 1,200V ensuring performance, charging speed, etc. IMHO. -
By oldshurst442 · Posted
Going back to the Ultium platform. I said that the batteries on the trucks are stacked up on each other and amongst other things that make it an 800V system. While true that the batteries on the Escalade, Hummers and Chevy EV pick up truck ARE stacked on top of each other, that does NOT make the system an 800V system. The fact that the two battery packs are connected IN SERIES makes them an 800V system. And that was what I was inferring to when I said "amongst other things". I read somewheres that GM knew to make the Ultium platform an 800V system at launch but figured the EV charging system was not capable of charging at those 800V fast charging speeds then so a 400V system was good enough. Again, I do not know if this is misinformation. GM went to dual 400V systems on two battery packs connected in series to emulate an 800V system on the trucks in that GM knew that range and charging speeds and all that where GM has an advantage to other truckish EVs were going to be a factor. The EV range on these truck EVs are amongst the best EV ranges in the world. Never you mind that there are two huge battery packs with a shyte ton of KW/H to them making at least one of the three trucks, the Hummer EVs, a very piss poor efficient EV. (The Hummer SUV and the Hummer pick-up are blended into one product in my rants) Some folk talk about how bad the efficiency is. But most applaud the range of these EV trucks. Also, these two huge battery packs make for extremely heavy EVs. I would assume the most heavy of ANY civilian EVs on sale to date. -
Democrat, republican or independent; jail them and let them starve to death. -
By oldshurst442 · Posted
In other news. The usa still sucks shyte!!! If its a Democrat problem, then arrest all democrats on raping women, sex trafficking and sex with under age girls. Yeah about that.... Trump is also on that list so... Lets get this right. The main idea on this is that trump is on that list... And it would be your president. Shameful, disgraceful and disgusting. Unlawful, unruly and ungodly. Not trustworthy, not ethical, not honourable and quite frankly, quite phoquing scary that americans are capable of accepting this shyte as their representative of their country and people. ALL americans... -
By oldshurst442 · Posted
GM's Ultium formerly known as, is actually a 400V system. The Chevy EV pick-up truck, the Hummer EV and the Escalade are dual 400V set-ups working in tandem to emulate a 800V set-up. I guess the way the battery packs are set-up in that truck platform. The batteries stacked up one on top of the other. Amongst other things, I suppose. The other Ultium platformed EVs with the single battery pack is just a 400V set-up. But I also read somewhere that GM has an 800V successor platform ready to go on sale in China right now. But is stalling due to reasons. Stalling here and there... Rumours and/or disinformation it could be though.
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