Do people in the US take 15m to visit the pump?
Hi, I'm one of the founders at GBatteries - sorry, the article had a mistake on publishing; should be 5 minutes for that example.
GBatteries (YC W14) let you charge your car as quickly as visiting the pump
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Re: GBatteries (YC W14) let you charge your car as quickly as visiting the pump
#32If a car's battery system is not set up for this kind of a charge rate (IE: it maxes at 7.2 amp 240 volt level 2), there is no way their system can just attach to your port and charge your car faster. There are on-board controllers etc. that are controlled (for good reason), by the car/manufacturer that would need to be bypassed.
Re: GBatteries (YC W14) let you charge your car as quickly as visiting the pump
#33Might be naive here, but isn't there some sort of limitation on the battery side as well?
Re: GBatteries (YC W14) let you charge your car as quickly as visiting the pump
#34There is a fix for slow charging that is literally as fast as filling a tank but nobody wants to use it. (I assume it is the same reason that there are pages and pages of battery improvements that never make it to market.) https://en.wikipedia.org/wiki/Flow_battery
The other fix would be swappable batteries. But it would require a huge engineering effort.
>swappable batteries would require a huge engineering effort.
Worked just fine back in 2013.
The people's habits were the only obstacle: owners wanted to retain their own battery pack, instead of getting pre-owned one left by somebody else, in unknown condition. And/or drive over a weird contraption.
[1] (loud music warning) https://www.youtube.com/watch?v=H5V0vL3nnHY
Re: GBatteries (YC W14) let you charge your car as quickly as visiting the pump
#35Super skeptical here, or at least the wording is misleading as hell. > The product allows users to charge a 60kWh EV battery pack with 119 miles of range in 15 minutes as compared to 15 miles in 15 minutes today. > The technology works with off-the-shelf lithium ion batteries and existing fast charge infrastructure by integrating via a patented self-contained adapter on a car charge port First read says that they're…
Hi! I'm one of the founders at GBatteries, please let me try to clear that up. We've demonstrated 5 min to 50% charge, 10 min to 100% - I’ll edit this to include a demo that we’ve done at CES 2019, and that we’re now exhibiting at the Detroit Auto show demonstrating. [EDIT] Video here: https://youtu.be/kSLrqR4TfnU Note: Charging times can vary by ~1 minute here and there, because the algorithm is adaptive and charact…
This makes more sense....I posted another comment, but the long and short is that you would need to be able to bypass the manufacturers controller to do this, which it sounds like you are saying.
Re: GBatteries (YC W14) let you charge your car as quickly as visiting the pump
#36Earlier quoted context omitted.
Hi! I'm one of the founders at GBatteries, please let me try to clear that up. We've demonstrated 5 min to 50% charge, 10 min to 100% - I’ll edit this to include a demo that we’ve done at CES 2019, and that we’re now exhibiting at the Detroit Auto show demonstrating. [EDIT] Video here: https://youtu.be/kSLrqR4TfnU Note: Charging times can vary by ~1 minute here and there, because the algorithm is adaptive and charact…
This makes more sense....I posted another comment, but the long and short is that you would need to be able to bypass the manufacturers controller to do this, which it sounds like you are saying.
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Re: GBatteries (YC W14) let you charge your car as quickly as visiting the pump
#37Earlier quoted context omitted.
Hi! I'm one of the founders at GBatteries, please let me try to clear that up. We've demonstrated 5 min to 50% charge, 10 min to 100% - I’ll edit this to include a demo that we’ve done at CES 2019, and that we’re now exhibiting at the Detroit Auto show demonstrating. [EDIT] Video here: https://youtu.be/kSLrqR4TfnU Note: Charging times can vary by ~1 minute here and there, because the algorithm is adaptive and charact…
This makes more sense....I posted another comment, but the long and short is that you would need to be able to bypass the manufacturers controller to do this, which it sounds like you are saying.
That's correct, we're not able to fast charge at these levels without approval from the OEM because of the limits they have built. We need to either be integrated inside of the vehicle, or on the charger but have the vehicles "approval" for charging at these higher rates, as at Level 3 and up it's DC to the pack.
Re: GBatteries (YC W14) let you charge your car as quickly as visiting the pump
#38There is a fix for slow charging that is literally as fast as filling a tank but nobody wants to use it. (I assume it is the same reason that there are pages and pages of battery improvements that never make it to market.) https://en.wikipedia.org/wiki/Flow_battery
The other fix would be swappable batteries. But it would require a huge engineering effort.
Why not fill up with loose cells? They are small, they roll. Couldn't they roll into a ribbed tray and then a rail on both sides clamps them in place and connects them? Or pulled in on a chain like a machine gun loading mechanism?
Re: GBatteries (YC W14) let you charge your car as quickly as visiting the pump
#39476mi/h of charging isn’t gorundbreaking. Aston Martin, Tesla and Porsche already charge at those speeds or faster. https://www.greencarreports.com/news/1118575_gm-working-on-u... I believe their “secret sauce” is allowing existing packs which charge slower to get “up to speed”. If so, that’s a pretty limited market as it’s likely that within a few years, all EVs sold will charge faster than the listed speeds. They’l…
Hi! I'm one of the founders at GBatteries - I’ve partially answered this in another comment, so will copy paste portions.
We've demonstrated 5 min to 50% charge, 10 min to 100% charge - below is a demo that we’ve done at CES 2019, and that we’re now exhibiting at the Detroit Auto show demonstrating this.
[Video here: https://youtu.be/kSLrqR4TfnU Note: Charging times can vary by ~1 minute here and there, because the algorithm is adaptive and characteristics of batteries change from moment to moment.]
The problem with batteries today is not charging speed; it’s possible to charge any battery quickly, but the faster you charge a battery the faster it will degrade. Our technology is able to decrease the irreversible chemical reactions that happen during charging, so that the same batteries can be charged fast without compromising cycle life.
We’re working on enabling existing packs to charge as fast as possible. We’re not able to fast charge at these levels without approval from the OEM as they have limits built-in. We need to either be integrated inside of the vehicle, or on the charger but have the vehicles "approval" for charging at these higher rates, as at Level 3 and up it's DC to the pack.
Re: GBatteries (YC W14) let you charge your car as quickly as visiting the pump
#40I hope people realize this "article" is nothing more than a PR puff piece.