Hello All :) I just wanted to drop a quick line to express our thanks to everyone for their kindness and well wishes during our recent incredibly active...
<this reply was previously private to Andy> ... The classic (2003) Prius had a 38-module (274V nominal) NiMH pack; the 2004, which we're using, has a...
On Tue, 05 Oct 2004 03:01:47 -0700 Ron Gremban <rgremban@...> ... had ... [Ron replies:] ... -[CLIP]- -- Thanks, Ron, for sharing this. Andy is a great...
I'll never have the level of expertise that you guys do on these multi-faceted battery considerations, but I did want to mention something that came up. As I...
The best way to parallel Nimhd batteries is to parallel at the cell level then you use the same battery management system except the cells are larger amp...
... 28 x 7.2V modules is correct: all series, no parallel. ... However Ford, according to public disclosures, is using 2800 NiMH "D" cells in their new Escape...
Here is the current state of our PRIUS+ prototype: Last weekend Michael Straube, from the East bay, came and helped add a hall effect current sensor in series...
Now that we have build and are debugging a PRIUS+ with our preliminary PbA battery pack, it is time to return to the search for our next, NiMH, battery pack....
As indicated below, we've tracked down our bug, but it appears that we will have to change configurations to avoid upsetting the THS. At the end of this...
We've developed this preliminary set of specifications to provide to battery manufacturers and packagers with whom we may explore establishing a relationship...
... That is very disapointing, as I believe this indicates that the BMS relies more heavily on "calculated SOC" while ignoring real time indications such as...
... Roger on the disappointment. The SOC calculation must use e.g. open circuit voltage, too, because a determination based only on current integration would...
... Think about it a little bit more... There may be a "meaningfull" number of BEV enthusiasts who would be willing to purchase a THS-BMS replacement that...
This Thursday and Friday, I will be reworking my PRIUS+ to the new configuration we have been talking about. There is a strong probability that after these...
Here is a headline in today's Automotive News (the auto industry's weekly "bible") that highlights some of the difficulties of finding the *right* NiMH battery...
Hi Dave, Ron & Felix & EVeryone else, What you are depicting as a problem is actually a business opportunity. We just need some unemployed engineers to seize...
This is a worthwhile discussion, and it should be seen by a larger audience. I'm re-posting it to http://groups.yahoo.com/group/gridable-hybrids/ where the...
Hi Everyone, Lithium Ion, 18650, batteries are widely used in laptop computers and it is one of the most widely used lithium ion batteries. 18 is the diameter...
Hi Wayne, For sure there should be some "safety circuitry" used in conjunction with these cells as there have been some fires reported in laptops and model...
I suggest that further general discussions on this subject be addressed to other lists, e.g. gridable-hybrids or evworld. Of course, to the extent that...
This is very interesting info. I am chagrined to say I was completely unaware of it. Given that we are proposing to create a PRIUS+ formula and vehicle type...
You are aware, I take it, that Toyota has a version of the Yaris on sale in Japan that uses Lithium batteries? Presumably they are happy idiots that can cope...
... Bingo. ... The 2.2 or 2.4Ah 18650's they used cost more like $4 per cell, for a cost closer to $20,000 Plus labor and the BMS system... I have a few of the...
Look at the small capacity Kokam LiP cells on my metricmind site. If they work for Cliff Rassweiler to move his racing pure EV, they will be fine to give a...
1. I was not aware of any such vehicle, but it would suggest an area of research for us (to find out who makes the batteries and whether they could be...
Hi, everyone! It is time for a PRIUS+ project update. As you will see, we have a number of unknown factors. We hope to have more clarity and/or an operational...
Thanks for the update. deciphering the Toyota codes in the various modules is never a picnic!! Good luck. Maybe the problem is in the lead acid batteries...
