Re: US vs Trojan

[Nawaz Qureshi <nqureshi@usbattery.com>]

Hi:

I will be out of town for the next week. When I get back I will explain the whole
thing.

Sincerely

Nawaz

"David G. Hawkins" wrote:

> Hello Nawaz and All,
>
> >Date: Wed, 27 Sep 2000 12:32:57 -0700
> >From: Nawaz Qureshi <nqureshi@usbattery.com>
> >My recent cycle life test completed on US2200  showed a cycle life of 934
> >cycles to 50% of the rated capacity (100% discharge @75 Amperes). Trojans
> >T105's go about 530  cycles with the exception of one time in 1987 when they
> >went about 740 cycles under the exact same cycling method. They have been
> >claiming that since then. Trojan claims a weight of 62 lb but actually weigh
> >59 lb. US2200 weighs 63 lb. Check for yourself. No one can dispute this fact.
> >They have also thinned down battery components inside (straps etc.) to reduce
> >costs. There is much more but when they hear these truths like these, they
> >make a bee line their attorney.
> >
> >I will be happy to fax you the recent actual cycle life testing curve if you
> >send me your fax number off the list.
> >
> >Sincerely
> >
> >Nawaz Qureshi
> <snip>
>
> When I read this post, I grabbed a catalog from a Trojan battery supplier
> that sells them for use with photovoltaic panels in residential
> applications.
>
> They sell the L-16 and T-125 models, and show 754 life cycles for Trojan,
> 477 for Exide, and 452 for US, using a test conducted per BCI test
> procedures.
>
> Unfortunately, it doesn't say who performed the test, when, or on what
> battery models, but I'm assuming it was from Trojan.
>
> Was your test done per the "BCI test procedure", and if not, can you
> explain the BCI procedure?
>
> Do you have data for 80% rated capacity?
>
> Also, do you have a .PDF or .JPG file of your testing that you can e-mail
> to me, so that I can share it with our local EV group?
>
> Thanks for your time,
> Dave Hawkins
> Lyons, CO
> thehawkeye@earthlink.net
> 1979 Mazda RX-7 EV (Back to 144V of flooded cells, but wants the YT's back!)
> 1989 Chevy S10 Ext. Cab (conversion in progress and taking too long!)