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Old Jan 14, 2004, 06:00 PM
The Natural Philosopher
Guest
n/a Posts
Re: E-flight, batteries, where will it end?

Wan wrote:

> NiCads, NiMH, Lith Ion, Lith poly, the list goes on. Last year I
> invested in NiMH and now they 're almost obsolete. I purchased my
> first Li Po battery a couple of weeks ago along with the necessary
> charger.
>
> I hope to replace my 10 celled NiMH batteries which weigh 22 oz each
> with 2 three celled Li Po batteries that weigh 9.6 oz together.
> Resulting in a reduction of about 12 oz. Now, in an airplane that
> totals out at 56 oz, the % reduction is about 21%. Along with that, I
> hope to increase my flight time by 300%! That's a WOW!
>
> But the batteries are quite expensive and I don't want to make the
> mistake of buying now and have new and better (maybe less expensive)
> batteries become available in the next couple months.
>
> Should I Wait? What about chargers? What is your opinion on this?
>



No, go for it.Whatever you buy will be onbsolete in two years, so doen't
worry :-)



Mind you, I was such a skinflint I never quite bought any NiMh so am
going direct from Nicad to Lipoly.


Isn't it fabulous? Suddenly duration and weight are - well not no
problem at all-, but certainly MUCH easier to get to.
Astro 109 is the best charger around.


> Wan
>



Old Jan 14, 2004, 06:01 PM
MikeF
Guest
n/a Posts
Re: E-flight, batteries, where will it end?

I look at it the same way i look at computers - cuz basically its the same animal.
If you buy a battery/motor/computer thats fast as butt, not even the 'ultimate' available,
but one that'll perform great and is affordable, who cares if its obsolete next week. In
two two years you'll still get 45minute flights and plenty of vertical. Unless your trying
to show off to the guys in the club, the most current *anything* is almost always
overkill, and for that premium price you only gain a few months before everyone else in
the club has one.
Im prolly not going to go lipo for a while - all my Black-ops slush fund cash will be
funneled into this .40 trainer someone gave me. For now, nimhs will have to suffice.


"Wan" <wanjung@toast.net> wrote in message
news:7387603e.0401140222.42659498@posting.google.c om...
> NiCads, NiMH, Lith Ion, Lith poly, the list goes on. Last year I
> invested in NiMH and now they 're almost obsolete. I purchased my
> first Li Po battery a couple of weeks ago along with the necessary
> charger.
>
> I hope to replace my 10 celled NiMH batteries which weigh 22 oz each
> with 2 three celled Li Po batteries that weigh 9.6 oz together.
> Resulting in a reduction of about 12 oz. Now, in an airplane that
> totals out at 56 oz, the % reduction is about 21%. Along with that, I
> hope to increase my flight time by 300%! That's a WOW!
>
> But the batteries are quite expensive and I don't want to make the
> mistake of buying now and have new and better (maybe less expensive)
> batteries become available in the next couple months.
>
> Should I Wait? What about chargers? What is your opinion on this?
>
> Wan



Old Jan 14, 2004, 06:01 PM
Libra Goat
Guest
n/a Posts
Re: E-flight, batteries, where will it end?

The Natural Philosopher <a@b.c> wrote in message news:<40051EC7.50406@b.c>...
> Wan wrote:
>
> > NiCads, NiMH, Lith Ion, Lith poly, the list goes on. Last year I
> > invested in NiMH and now they 're almost obsolete. I purchased my
> > first Li Po battery a couple of weeks ago along with the necessary
> > charger.
> >
> > I hope to replace my 10 celled NiMH batteries which weigh 22 oz each
> > with 2 three celled Li Po batteries that weigh 9.6 oz together.
> > Resulting in a reduction of about 12 oz. Now, in an airplane that
> > totals out at 56 oz, the % reduction is about 21%. Along with that, I
> > hope to increase my flight time by 300%! That's a WOW!
> >
> > But the batteries are quite expensive and I don't want to make the
> > mistake of buying now and have new and better (maybe less expensive)
> > batteries become available in the next couple months.
> >
> > Should I Wait? What about chargers? What is your opinion on this?
> >

>
>
> No, go for it.Whatever you buy will be onbsolete in two years, so doen't
> worry :-)
>
>
>
> Mind you, I was such a skinflint I never quite bought any NiMh so am
> going direct from Nicad to Lipoly.
>
>
> Isn't it fabulous? Suddenly duration and weight are - well not no
> problem at all-, but certainly MUCH easier to get to.
> Astro 109 is the best charger around.
>
>
> > Wan
> >


Also, in reviews, the ReZap battery charger opinions are negative.
Said it doesn't do the job.
Old Jan 15, 2004, 03:00 AM
Wan
Guest
n/a Posts
Re: E-flight, batteries, where will it end?

The Natural Philosopher <a@b.c> wrote in message news:<40051EC7.50406@b.c>...
> Wan wrote:
>
> > NiCads, NiMH, Lith Ion, Lith poly, the list goes on. Last year I
> > invested in NiMH and now they 're almost obsolete. I purchased my
> > first Li Po battery a couple of weeks ago along with the necessary
> > charger.
> >
> > I hope to replace my 10 celled NiMH batteries which weigh 22 oz each
> > with 2 three celled Li Po batteries that weigh 9.6 oz together.
> > Resulting in a reduction of about 12 oz. Now, in an airplane that
> > totals out at 56 oz, the % reduction is about 21%. Along with that, I
> > hope to increase my flight time by 300%! That's a WOW!
> >
> > But the batteries are quite expensive and I don't want to make the
> > mistake of buying now and have new and better (maybe less expensive)
> > batteries become available in the next couple months.
> >
> > Should I Wait? What about chargers? What is your opinion on this?
> >

>
>
> No, go for it.Whatever you buy will be onbsolete in two years, so doen't
> worry :-)


Thanks for the encouragement, but things do become obsolete way too
fast.

> Mind you, I was such a skinflint I never quite bought any NiMh so am
> going direct from Nicad to Lipoly.


You are very fortunate to have waited. I spent a considerable amount
on NiMH already and now I'd like to turn to Li Po batteries for their
lightness and capability for longer flights.

> Isn't it fabulous? Suddenly duration and weight are - well not no
> problem at all-, but certainly MUCH easier to get to.


Yes, it is fabulous. I had just returned from an indoor fun fly and
those little planes flew all evening on one charge with Li Po
batteries. My plane is a Slow Stick, a larger plane and it didn't use
much of the battery. Probably enough charge left for a couple more
evenings.

> Astro 109 is the best charger around.


Well, I have a Triton charger now. What I'm concerned about is, if new
technologies develop new and better batteries, will my charger still
be compatible?

Already they're talking about the "new and better". That's the reason
for my original question. Since outdoor flying around here won't be
for a few months yet, should I wait?

Wan
>
> >

Old Jan 15, 2004, 06:00 PM
MikeF
Guest
n/a Posts
Re: E-flight, batteries, where will it end?

How much you want for your nimhs?



"Wan" <wanjung@toast.net> wrote in message
news:7387603e.0401142126.505f3272@posting.google.c om...
> The Natural Philosopher <a@b.c> wrote in message news:<40051EC7.50406@b.c>...
> > Wan wrote:
> >
> > > NiCads, NiMH, Lith Ion, Lith poly, the list goes on. Last year I
> > > invested in NiMH and now they 're almost obsolete. I purchased my
> > > first Li Po battery a couple of weeks ago along with the necessary
> > > charger.
> > >
> > > I hope to replace my 10 celled NiMH batteries which weigh 22 oz each
> > > with 2 three celled Li Po batteries that weigh 9.6 oz together.
> > > Resulting in a reduction of about 12 oz. Now, in an airplane that
> > > totals out at 56 oz, the % reduction is about 21%. Along with that, I
> > > hope to increase my flight time by 300%! That's a WOW!
> > >
> > > But the batteries are quite expensive and I don't want to make the
> > > mistake of buying now and have new and better (maybe less expensive)
> > > batteries become available in the next couple months.
> > >
> > > Should I Wait? What about chargers? What is your opinion on this?
> > >

> >
> >
> > No, go for it.Whatever you buy will be onbsolete in two years, so doen't
> > worry :-)

>
> Thanks for the encouragement, but things do become obsolete way too
> fast.
>
> > Mind you, I was such a skinflint I never quite bought any NiMh so am
> > going direct from Nicad to Lipoly.

>
> You are very fortunate to have waited. I spent a considerable amount
> on NiMH already and now I'd like to turn to Li Po batteries for their
> lightness and capability for longer flights.
>
> > Isn't it fabulous? Suddenly duration and weight are - well not no
> > problem at all-, but certainly MUCH easier to get to.

>
> Yes, it is fabulous. I had just returned from an indoor fun fly and
> those little planes flew all evening on one charge with Li Po
> batteries. My plane is a Slow Stick, a larger plane and it didn't use
> much of the battery. Probably enough charge left for a couple more
> evenings.
>
> > Astro 109 is the best charger around.

>
> Well, I have a Triton charger now. What I'm concerned about is, if new
> technologies develop new and better batteries, will my charger still
> be compatible?
>
> Already they're talking about the "new and better". That's the reason
> for my original question. Since outdoor flying around here won't be
> for a few months yet, should I wait?
>
> Wan
> >
> > >



Old Jan 15, 2004, 06:01 PM
Pete Christensen
Guest
n/a Posts
Re: E-flight, batteries, where will it end?

Dance with the girl that brung ya!


"Wan" <wanjung@toast.net> wrote in message
news:7387603e.0401140222.42659498@posting.google.c om...
> NiCads, NiMH, Lith Ion, Lith poly, the list goes on. Last year I
> invested in NiMH and now they 're almost obsolete. I purchased my
> first Li Po battery a couple of weeks ago along with the necessary
> charger.
>
> I hope to replace my 10 celled NiMH batteries which weigh 22 oz each
> with 2 three celled Li Po batteries that weigh 9.6 oz together.
> Resulting in a reduction of about 12 oz. Now, in an airplane that
> totals out at 56 oz, the % reduction is about 21%. Along with that, I
> hope to increase my flight time by 300%! That's a WOW!
>
> But the batteries are quite expensive and I don't want to make the
> mistake of buying now and have new and better (maybe less expensive)
> batteries become available in the next couple months.
>
> Should I Wait? What about chargers? What is your opinion on this?
>
> Wan



Old Jan 15, 2004, 06:01 PM
Doug McLaren
Guest
n/a Posts
Re: E-flight, batteries, where will it end?

In article <7387603e.0401140222.42659498@posting.google.com >,

Wan <wanjung@toast.net> wrote:

| NiCads, NiMH, Lith Ion, Lith poly, the list goes on. Last year I
| invested in NiMH and now they 're almost obsolete.

Obsolete? No. NiCds and NiMH cells work just as well (often better)
than they used to. It's just that Li-poly cells are often better now
for many applications.

Just because there's something better out now, that doesn't mean that
what was out yesterday is obsolete.

Still, in your case, it sounds like Li-poly is a good thing. You'll
have to tell us how it works out.

Personally, I haven't made the Li-poly plunge yet. But soon. I've
already got an appropriate charger (GP Triton) so it's just a matter
of buying the batteries and maybe an ESC or two that will cut off an
at appropriate voltage.

--
Doug McLaren, dougmc@frenzy.com
Tonight on FOX: World's Wildest Animals Attacking Police Videos While Aliens
Abduct Them and Impregnate Them with Elvis' DNA in an Attempt to Re-populate
Earth with Their Own Kind Until Their Plan is Thwarted by a Kid on a Skateboard
Old Jan 16, 2004, 03:01 AM
Wan
Guest
n/a Posts
Re: E-flight, batteries, where will it end?

dougmc@frenzy.com (Doug McLaren) wrote in message news:<e1BNb.26760$RV5.11871@fe2.texas.rr.com>...
> In article <7387603e.0401140222.42659498@posting.google.com >,
>
> Wan <wanjung@toast.net> wrote:
>
> | NiCads, NiMH, Lith Ion, Lith poly, the list goes on. Last year I
> | invested in NiMH and now they 're almost obsolete.
>
> Obsolete? No. NiCds and NiMH cells work just as well (often better)
> than they used to. It's just that Li-poly cells are often better now
> for many applications.


Doug, I know you've been around for quite some time and you're right
about the NiCds and NiMH not being obsolete yet, but soon the Li Pos
will replace them. Just guessing, as I'm beginning to learn about this
new fangled stuff.
>
> Just because there's something better out now, that doesn't mean that
> what was out yesterday is obsolete.


That's just it, Li Pos are lighter and has better flight duration,
because as you know, lighter airplanes don't need as much power to fly
and fly better to boot.

> Still, in your case, it sounds like Li-poly is a good thing. You'll
> have to tell us how it works out.


I will let you know, but warm weather is still months away here.
However, there are many fliers who have been using and are very happy
with this type of battery.
>
> Personally, I haven't made the Li-poly plunge yet. But soon. I've
> already got an appropriate charger (GP Triton) so it's just a matter
> of buying the batteries and maybe an ESC or two that will cut off an
> at appropriate voltage.


Once you have the basic electric plane, the investment in new Li Poly
batteries and access. are a lot less costly. (I also have the GP
Triton). In my case, I need only to buy the batteries. Got everything
else.

I've said earlier, I flew indoors a Slow Stick all evening powered by
a Li Po battery and yet have enough power for a couple more evenings.

Sure sounds as if I'm convincing myself to buy right away.

Wan
Old Jan 16, 2004, 06:00 PM
MikeF
Guest
n/a Posts
Re: E-flight, batteries, where will it end?

I just wish the triton was ac/dc. Hard to imagine they went through all the trouble of
making that capable of charging anything, but they couldnt stick a powercord out the
back...


"Doug McLaren" <dougmc@frenzy.com> wrote in message
news:e1BNb.26760$RV5.11871@fe2.texas.rr.com...
> In article <7387603e.0401140222.42659498@posting.google.com >,
>
> Wan <wanjung@toast.net> wrote:
>
> | NiCads, NiMH, Lith Ion, Lith poly, the list goes on. Last year I
> | invested in NiMH and now they 're almost obsolete.
>
> Obsolete? No. NiCds and NiMH cells work just as well (often better)
> than they used to. It's just that Li-poly cells are often better now
> for many applications.
>
> Just because there's something better out now, that doesn't mean that
> what was out yesterday is obsolete.
>
> Still, in your case, it sounds like Li-poly is a good thing. You'll
> have to tell us how it works out.
>
> Personally, I haven't made the Li-poly plunge yet. But soon. I've
> already got an appropriate charger (GP Triton) so it's just a matter
> of buying the batteries and maybe an ESC or two that will cut off an
> at appropriate voltage.
>
> --
> Doug McLaren, dougmc@frenzy.com
> Tonight on FOX: World's Wildest Animals Attacking Police Videos While Aliens
> Abduct Them and Impregnate Them with Elvis' DNA in an Attempt to Re-populate
> Earth with Their Own Kind Until Their Plan is Thwarted by a Kid on a Skateboard



Old Jan 16, 2004, 06:01 PM
astroflyer
Guest
n/a Posts
Re: E-flight, batteries, where will it end?

On Fri, 16 Jan 2004 05:44:27 -0500, "MikeF" <vanning@comcast.net>
wrote:

>I just wish the triton was ac/dc. Hard to imagine they went through all the trouble of
>making that capable of charging anything, but they couldnt stick a powercord out the
>back...


it'd take a lot more than just a powercord....a power supply that'd be
two or three times larger than the charger itself. It'd no longer be
a nice compact little unit that you can take to the field in your
flight box.

cheers
astroflyer

park flyer plans
www.eastwindmodels.com

Old Jan 16, 2004, 06:01 PM
Doug McLaren
Guest
n/a Posts
Re: E-flight, batteries, where will it end?

In article <oi7g00l43f79lkf7avcms4cgjsmhhok71b@4ax.com>,
astroflyer <astroflyer@ns.sympatico.ca> wrote:

| On Fri, 16 Jan 2004 05:44:27 -0500, "MikeF" <vanning@comcast.net>
| wrote:
|
| >I just wish the triton was ac/dc. Hard to imagine they went through
| >all the trouble of making that capable of charging anything, but
| >they couldnt stick a powercord out the back...
|
| it'd take a lot more than just a powercord....a power supply that'd be
| two or three times larger than the charger itself. It'd no longer be
| a nice compact little unit that you can take to the field in your
| flight box.

Exactly so -- a 13 amp 12 volt power transformer would not be small.
It would also increase the price.

You can convert a PC power supply into a nice power supply for things
like this pretty easily. Here's instructions --

http://www.marcee.org/Articles/PCPowerSupply.htm

much cheaper than anything you'll buy at Radio Shack.

Hint: try to find an AT power supply rather than ATX -- it's easier to
do with an AT power supply.

--
Doug McLaren, dougmc@frenzy.com Body by Nautilus; Brain by Sega.
Old Jan 16, 2004, 06:01 PM
w4jle
Guest
n/a Posts
Re: E-flight, batteries, where will it end?

I am using a power supply that I bought at : http://remboy.com 12V @ 13
amps or $19.95 including shipping. It is about 1.5 X 4 X 8.

It is mounted in a small field box along with a 7.5 Ah battery. Works great
and I can use it in the field or at home.

"astroflyer" <astroflyer@ns.sympatico.ca> wrote in message
newsi7g00l43f79lkf7avcms4cgjsmhhok71b@4ax.com...
> On Fri, 16 Jan 2004 05:44:27 -0500, "MikeF" <vanning@comcast.net>
> wrote:
>
> >I just wish the triton was ac/dc. Hard to imagine they went through all

the trouble of
> >making that capable of charging anything, but they couldnt stick a

powercord out the
> >back...

>
> it'd take a lot more than just a powercord....a power supply that'd be
> two or three times larger than the charger itself. It'd no longer be
> a nice compact little unit that you can take to the field in your
> flight box.
>
> cheers
> astroflyer
>
> park flyer plans
> www.eastwindmodels.com
>



Old Jan 17, 2004, 03:00 AM
Wan
Guest
n/a Posts
Re: E-flight, batteries, where will it end?

"w4jle" <W4JLE(remove this to reply)@pbtcomm.net> wrote in message news:<bu9ep4$3k44$1@news3.infoave.net>...
> I am using a power supply that I bought at : http://remboy.com 12V @ 13
> amps or $19.95 including shipping. It is about 1.5 X 4 X 8.
>
> It is mounted in a small field box along with a 7.5 Ah battery. Works great
> and I can use it in the field or at home.
>
> "astroflyer" <astroflyer@ns.sympatico.ca> wrote in message
> newsi7g00l43f79lkf7avcms4cgjsmhhok71b@4ax.com...
> > On Fri, 16 Jan 2004 05:44:27 -0500, "MikeF" <vanning@comcast.net>
> > wrote:
> >
> > >I just wish the triton was ac/dc. Hard to imagine they went through all

> the trouble of
> > >making that capable of charging anything, but they couldnt stick a

> powercord out the
> > >back...

> >
> > it'd take a lot more than just a powercord....a power supply that'd be
> > two or three times larger than the charger itself. It'd no longer be
> > a nice compact little unit that you can take to the field in your
> > flight box.
> >
> > cheers
> > astroflyer
> >
> > park flyer plans
> > www.eastwindmodels.com
> >

You have some nice looking designs, Mr. Eastman. Wish I could think of
a name for the twin powered plane. How about "High Tailer"? I'm not
trying to enter your contest though : )

I did say that I have a Triton charger, but it is fairly small,
measuring about 1 1/2" x 4" x 6" that could use the battery directly
off my car. This I could take to the field.

The AC power supply is about time and a half larger than the Triton in
volume. A little thicker and wider, and about 2" longer. I leave that
home.

I wonder if there are more compact chargers out there?

Thanks,
Wan
Old Jan 17, 2004, 06:00 PM
astroflyer
Guest
n/a Posts
Re: E-flight, batteries, where will it end?

On Fri, 16 Jan 2004 14:41:27 -0500, "w4jle" <W4JLE(remove this to
reply)@pbtcomm.net> wrote:

>I am using a power supply that I bought at : http://remboy.com 12V @ 13
>amps or $19.95 including shipping. It is about 1.5 X 4 X 8.
>
>It is mounted in a small field box along with a 7.5 Ah battery. Works great
>and I can use it in the field or at home.


yes, but that wouldn't be the one that a manufacturer would add to
their product. to practical, not big enough. <VBG>

ever see the AC one that powers the accucycle plus?

cheers
astroflyer

park flyer plans
www.eastwindmodels.com
Old Jan 17, 2004, 06:00 PM
astroflyer
Guest
n/a Posts
Re: E-flight, batteries, where will it end?


>You have some nice looking designs, Mr. Eastman. Wish I could think of
>a name for the twin powered plane. How about "High Tailer"? I'm not
>trying to enter your contest though : )


Thank you sir, for the compliment!

The name suggestion is not bad either.

cheers
astroflyer


 


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