From: "tom_yellowblue" <tom_yellowblue@...>
Date: Tuesday, May 27, 2003 11:40 AM
Subject: Re: On lightness, stretched wings and 1/8" CF tailbooms
Date: Tuesday, May 27, 2003 11:40 AM
Subject: Re: On lightness, stretched wings and 1/8" CF tailbooms
John,
I can't remember the minimum voltage per cell, but I think it is in
the range of 2.5-3.0V. The manufacturers would have the info, and I
know it has been posted on the Ezone many times.
I've never had problem because I usually only use them in planes with
electric motors. On a 2-cell pack, the plane will be on the ground
before the minimum voltage is reached.
I have played around using a single cell for a glider, but I don't
have anything special for protection. I calculate about how long I
can fly before the voltage will get too low, then I give myself a
large margin.
I have also heard of people making/selling circuits that will light up
an LED when the voltage gets below a certain point. This may not help
if the plane is in the air for hours at a time, but it should work if
you're constantly hand-launching or can fly the plane close enough to
see the LED.
Tom
--- In BugHLG@yahoogroups.com, "gldrgidr" <gldrgidr@m...> wrote:
>
> I've heard that these cells are permanetly damaged if you let the
> charge go below something like 40%. How do you prevent this?
> John