Originally Posted by WATTGAS
- I love the idea of faster charging. Will your team be testing the impacts (if any) of faster charging on the performance and reliability of the HV battery pack? Asking since there isn't any actual or theoretical long term reliability ratings on a faster charging solution with the Karma battery pack.
I also like the idea of the charge port behind the license plate. Modifying the rear fascia doesn't sound too ominous unless you mean literally replacing the existing rear fascia with an entirely new fascia.
While we're at it, can we add a rear handle inside the trunk roof to make it easier to close the trunk without touching the paint?
The handle like the Volt has is what I have in mind.
Yes we have extensively tested the limits of the existing A123 pack and the current draw is dependent on several factors mainly SOC and Temperature.
We have collected extensive data on the A123 pack in the 2012 Karma and have thousands of cycles on these packs to ensure that we are operating within the published and observed specifications of AMP20 cell, module and pack itself.
Our continuous charge limits never exceed 70A and our nominal power output is around 25kw. This is extremely conservative for this pack and we intend on increasing these limits over-time. Without a doubt the testing we have done on these packs is the most complete real-world repository of data available.
We can provide charts and any other data via email. If you are interested please contact me [email protected]
For the charge-port it will be a modification to the existing rear fascia that will include a flush mounted CHAdeMO port mounted to the bumper which will require drilling. We think this is the most OEM way to do it and will have a demo video soon.
I haven't seen the trunk roof idea you are referring to but the assumption is that it is just a grab handle mounted on the trunk lid itself?