Peter VanDerWal wrote:
>
> Yes I appoligize for that, I was thinking 148v which would indicate the
> batteries still retained a charge. Further reading indicates that after
> 15 to 20 minutes the batteries came back up to 144.8V.
>
> You know something occured to me. For this kind of test a DC-DC would
> have been sufficient to power the 12V load so why the 13th battery?
> Perhaps they do have a DC-DC running the other direction (12V->144V) to
> make it appear that the batteries where charging...only they drained
> them down so far that it didn't work very well.
>
> At any rate the fact that the batteries measured 139V a few minutes
> after the load was removed clearly indicates that they drained these
> batteries far below the point that is normally considered empty.
>
> Jon \"Sheer\" Pullen wrote:
>
> >----- Original Message -----
> >From: "Peter VanDerWal" <[EMAIL PROTECTED]>
> >To: <[EMAIL PROTECTED]>
> >Sent: Sunday, September 08, 2002 3:22 PM
> >Subject: Re: amazing! Tilley Electric Vehicle TEV) tests
> >
> >
> >>Typical BS and lies. Their reports don't match independant reports.
> >>
> >>They claim 144.8V at the end of testing while others report 139V.
> >> 144.8V would indicate that the batteries still retain most of their
> >>charge. 139V indicate that the batteries were seriously OVER
> >>discharged, Note this is 139V WITH NO LOAD and presumably taken at least
> >>a minute or two after the load was removed, I'd bet they reversed a
> >>couple cells.
> >>
> >
> >I think you're reading too much into 5V difference. Either way, 144 is well
> >below charge hysteresis for lead acid batteries, so the batteries weren't
> >'being charged'. In any case, 144V on a 144V nominal pack is 12V a battery,
> >which unladen means those batteries were basically bone dry, every watt-hour
> >possible had been wrung.
> >
> >
> >
A few items can be checked. First thier set up has a DCP Raptor, and a
DCP DC/DC converter. We can call Damon and find out what he sold them.
Since I helped design both items.... it's doubtfull that they have been
modified much.
So... there are limits we can identify. Also... There are some that say
the "Tilly" box can make 300 to 500 amps at 144 when it's ON. OK, I
surely would like my LEM clampon to read that number of amps flowing
back into the batteries on a continuous bassis. In fact... with out this
basic test, the whole Scam falls apart.
In the line of not being TOOOOO caustic, I really don't want to know
what's in the box, just the results please. If the numbers support the
eveidence, THEN I get a bit more interested. Oh "in staying out of the
line of fire" and helping fellow EVers, we aughta help them in reducing
the Kwhr per mile driven. Getting close enough to help them out might
shine some much needed light in a dark place for them. A 9 incher and a
Raptor 600 at 144 is a nice package. Some brush adjustments, and kicking
it up to 156, a nice 4 corner aligment, and some MTL50 in the Gear box
could easly double thier range. They could do this and double the
effectiveness of the "Tilly" device in just a week of work.
The cryin' shame would be if they were convinced of their deeds, and
were not Scamming but just fooled by themselves.
If you note in thier photos on thier sight, there are Trace boxes and
other quality names evident. Someone involved has some pretty good
insights into the electronics envolved. Which tips the hands to the Scam
side from the unknowing discover side.
I bet a PFC50 and buck enhancer would REALLY cut the recharge
time....But if thier box makes 500 amps into the battery pack... Well
there is no need for my back yard designed stuff that's just a paltry
%90 efficient. Now if I could get %900, then I would have something!!
Oh this is fun!!... as long as we keep the humor involved this is just
plain fun.
Oh yea Joe was pokin' some fun at me. I know how he was getting 90 amps
out from 8 amps of line in. Buck step down is a pretty simple concept.
So's transformer step down. Things look pretty impressive if you miss
the fact that the voltage is less. It sure is a nice way to beat the
SNOT out of a power stage. The meter sure does not spin as fast at it
does if you are sucking 50 amps from the line...
--
Rich Rudman
Manzanita Micro
www.manzanitamicro.com
1-360-297-7383,Cell 1-360-620-6266
