EV owners and smartypants...what do you think of this for a Prius?

[stevey_frac]

Originally Posted by Daox

Yes, you're right. But, you don't want to cycle your batteries below 50% (generally) to retain good battery life.

Ahh... your right of course. THat's the part i missed.

[/offtopic]

[mattW]

Thundersky batteries don't seem to mind so much. They get 2000 cycles to 80% DoD, 3000 for 70%... I've been reading up a lot about them (I just bought a 48V 60Ah pack for my bike) and I haven't seen a reason to doubt that. I think you'll get 6-7 miles plus whatever is in the existing pack. Its interesting that they've gone for such a low voltage and used a DC-DC converter to get to the prius' 200+ volt pack.

[stevey_frac]

Originally Posted by mattW

Thundersky batteries don't seem to mind so much. They get 2000 cycles to 80% DoD, 3000 for 70%... I've been reading up a lot about them (I just bought a 48V 60Ah pack for my bike) and I haven't seen a reason to doubt that. I think you'll get 6-7 miles plus whatever is in the existing pack. Its interesting that they've gone for such a low voltage and used a DC-DC converter to get to the prius' 200+ volt pack.

Perhaps they're running in 2 cells in parallel in each step of series to reduce the impact of a bad cell? Just a thought.

[NeilBlanchard]

Hi Steve,

Originally Posted by stevey_frac

I know the volt is going for a 40 mile range with 8 kwhr of battery or there abouts.

I think the Volt has a 16kWh battery pack? The Aptera 2e will have a 17-23kWh and go 100 miles minimum with 2 people, luggage and the A/C on -- ~120 if you ecodrive.

[Daox]

Yeah, it all depends on the RR and CdA of the vehicle. More efficient vehicles will take less Wh/mile. I based my number (ironically I did use 250 Wh/mile) off some discussion with Darin and what he gets in the ForkenSwift.

[stevey_frac]

Originally Posted by NeilBlanchard

Hi Steve,



I think the Volt has a 16kWh battery pack? The Aptera 2e will have a 17-23kWh and go 100 miles minimum with 2 people, luggage and the A/C on -- ~120 if you ecodrive.

16 kWh but only 8kWh will be used at any given time. And i was thinking the 2kWh was the usable energy, not the total energy.