Optical Refractometer WAS: Why I abuse batteries was: trojan battery cycle [RE-w

[Bill Loesch]

Hi Jim, et al,

I'm not smirking.

You are one smart cookie and I bet your checked batteries last a lot longer
than someone else's.

The only comment I could make is to buy the product from the manufacturer
for a lot less.

Misco Products Division
3401 Virginia Road
Cleveland, OH 44122
tel 216 831 1000

Technically it is an optical refractometer and it not only tests battery
acid but also glycol (both ethylene glycol and propylene glycol; toxic and
non toxic antifreeze) the two glycols are _not_ the same so if you are using
an anti freeze test strip (or float hydrometer) it had better be for the
proper fluid.

Kudos for taking the slings and arrows. He who laughs last, laughs best.

Bill Loesch
Solar 1 - Saint Louis Solar

PS It is not uncommon for my properly sized and maintained (lead acid)
battery banks to last eight years.

http://www.misco.com/search.php?app=10

It has been a while since I bought this and after reviewing the above
website, your advertised price is the same as mine (possible restraint of
trade issue) As I remember, the manufacturer's sales person was
"accommodating" and I paid less than $100 for the tool.

For those who want a digital version they do that, too (for almost three
times the cost).

Cheers
Bill




----- Original Message ----- 
From: "Jim Duncan" <ntrei at earthlink.net>
To: <RE-wrenches at topica.com>
Sent: Saturday, February 23, 2008 12:06 PM
Subject: RE: Why I abuse batteries was: trojan battery cycle [RE-wrenches]


>
> A couple of years ago, I replied to this question about accurate battery
> testing with a suggestion that the Duo Chek optical battery tester was
> well worth it's $100 price tag. I was chided for spending such an
> extravagent amount for a tool when a cheaper one would work. (And how
> many Klein tools are in your toolbag?)
> Mine is around 15 years old (I got it when it was 5) and it has been
> dropped hard several times. Don't try that with your glass tube type
> testers.
> Anyway, the cheaper ones don't work accurately unless you do the
> temperature calcs and are sure that the floating balls are not just
> stuck to the inside of the tube because it wasn't cleaned completely
> last time. The Duo chek is temp compensated.
> It's not digital and it's not $100 any more but it's worth every dime.
> I promise I'm not smirking...
> http://www.kerncoinstr.com/11j14.htm
>
> Jim Duncan
> North Texas Renewable Energy Inc
> Fort Worth, Texas
> www.ntrei.com
>
> Travis Creswell wrote:
>
> I assume we would all agree what Specific gravity is about the most
> accurate to way to determine state of charge.
> So here is possibly dumb question that I've wondered about for years.
> Is there such a thing as digital specific gravity meter?
>
>
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