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Bill,
you say 10 years - how are you so sure it will hold?
I am living in a hot/humid country - I need a new car battery every 2 years,
like clockwork - sealed/no-maintenance battery.
In the "old world" (Central-Europe) a regular car battery would last at
least 4-5 years (no I have no comparrison, as back then ALL batteries where
"maintenance" batteries - however keeping the liquid level with distilled
water was all that was needed)
I just changed the bat again - from first sign (slight hesitation at start)
to "death" was 2 days...
At a rate of 40.- per battery I probably keep changing them, but I guess for
"weight-fanatics" it seems a cheap way to loose some.
I am just a bit sceptic on the 10 years.
Someonoe asked already - what's the tech behind this? In laymans terms
please :))
Great website!!
Thomas J.
----- Original Message ----- From: "BillDube@killacycle.com" <billdube@killacycle.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Saturday, April 08, 2006 10:47 PM
Subject: [FlyRotary] State-of-the-art airplane battery
I know this is a bit off topic, but we rotor heads like to try the
latest and greatest stuff.
I am considering producing state-of-the art, very lightweight, ultra
long life, starting batteries for experimental aircraft. They won't
be cheap to make, however. I'd like to get some feedback as to the
market for these before I put a big effort into this.
Here are the specs:
14 volts
480 cranking amps
8.8 amp-hours
2.7 pounds (Yes, that is right.)
10 year warrantee (prorated)
Completely sealed battery
Safer than lead acid or NiCad
Built-in electronic monitoring system warns of over-voltage,
under-voltage, over heating, or internal battery fault.
That is all the good news. The downside is that they will cost about
$475. I'm not sure how many folks would want a 10 year battery (at
least) that weighs about 1/3 as much as an "ordinary" battery, but
costs four times as much.
The specs above are real. I have personally tested these batteries
and they do, indeed, perform this well, so that is not an issue. I
know I can make these. I'm going to make one for myself. The question
is, will folks buy them if I produce them?
Let me know if you think you would be interested in such a high-tech
battery at this cost.
Bill Dube'
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Homepage: http://www.flyrotary.com/
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