Re: (ET) Breaking in a new pack

["David Roden (Akron OH USA)" <roden ald net>]

On 26 Aug 2002 at 4:14, harry landis wrote:

> If
> you use the Landis controller, the ET charger turns on when the resting 
> no
> load voltage of the pack falls below 38 volts. It turns off 5 minutes 
> later.
> When the resting no load voltage falls below 38 volts again, the charger
> charges another 5 minutes. 

Please correct me if I'm wrong: as I understand it, this device is mainly 
intended to keep the pack charged when the tractor isn't being used.  

In my book, that's the functionality of a float charger.  The Landis 
controller  (presumably) accomplishes what a regulated float charger would 
do, using the not-quite-regulated output of the GE charger.  

Don't misunderstand me; I'm not disparaging your controller in any way!  
It 
appears to have significant value for those who store their ETs part of 
the 
year.  There may be other advantages I don't know about.

The question to which I was responding had to do with breaking in a new 
battery pack.  Can you suggest how a Landis controller might be 
advantageous 
for that purpose?

Thanks again for the comments.


David Roden - Akron, Ohio, USA
1991 Solectria Force 144vac
1991 Ford Escort Green/EV 128vdc
1970 GE Elec-trak E15 36vdc
1974 Avco New Idea 36vdc
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