Time to upgrade the batteries...

[racunniff]

It may be because of the charger. It may be because my battery
watering technique is incorrect (although I don't think so). But it
is time to upgrade the batteries on the volt914 - see
http://volt914.blogspot.com/2009/08/time-to-upgrade-batteries.html for
details. I'll be blogging updates.

The basic concept is to replace the US-8VGC with Concorde AGM-1280T,
yielding a 17kWh nominal pack at 216V (vs. 23kWh at 144V of the
originals).

[Randy Pollock]

Hi Russ

Check with Azure. You may be trying to go in the mushy middle of
the voltage range...

How many miles did you get on the pack? Typical drive between
charges. Hills?

Good luck.

Randy

[racunniff]

I've been talking with them. They don't anticipate any problems at
216V as long as the parameters are correct.

I don't expect much over 156V performance, but I do expect to get *to*
the 156V performance level (144V was always a little small for this
combo).

I got around 4000 miles on the pack. Typical miles driven between
charges was 10, so roughly 400 cycles so far. The batteries are
actually still running well. It's just the mess and other symptoms.

On Aug 26, 9:11 am, Randy Pollock <ra...@alumni.caltech.edu> wrote:
> Hi Russ
>
>       Check with Azure. You may be trying to go in the mushy middle of  
> the voltage range...
>
>       How many miles did you get on the pack?  Typical drive between  
> charges. Hills?
>
>       Good luck.
>
>             Randy
>