[roc-chat] Re: LiPo/Li-Ion batteries
- From: "Adrian P. Bailey" <adrian@xxxxxxxxxxxxxxx>
- To: <roc-chat@xxxxxxxxxxxxx>
- Date: Tue, 1 Jul 2014 15:31:09 -0700
I’m new to rocketry but have been dealing with LiPo batteries for a while with
my son’s RC aircraft. No problems so far, despite some very hard landings (we
started a couple of years ago when he was 8, LOL). I can’t image a 1mm thick
LiPo could set a car on fire! :)
From: roc-chat-bounce@xxxxxxxxxxxxx [mailto:roc-chat-bounce@xxxxxxxxxxxxx] On
Behalf Of James Dougherty
Sent: Tuesday, July 01, 2014 2:37 PM
To: ROC Chat
Subject: [roc-chat] Re: LiPo/Li-Ion batteries
Cool. Thanks Carlo - so I will send some notes on those "ultra-thin" ones ...
probably need some high mach flights to buzz them out!
On Tue, Jul 1, 2014 at 11:33 AM, Carlo Vaccari <airplaniac2002@xxxxxxxxx> wrote:
Yes. Do note that they have different polarity from the Featherweight Power
Perch batteries which have the same connector.
On Jul 1, 2014 2:31 PM, "James Dougherty" <jafrado@xxxxxxxxx> wrote:
Thanks! Did you use the Sparkfun units?
On Tue, Jul 1, 2014 at 11:26 AM, Carlo Vaccari <airplaniac2002@xxxxxxxxx> wrote:
I smashed up a Raven and a Telemini V1. I was using a 400 mAh and a 110 mAh
battery, respectively.
On Jul 1, 2014 2:18 PM, "James Dougherty" <jafrado@xxxxxxxxx> wrote:
Thanks Carlo,
What devices are you using?
-James
On Tue, Jul 1, 2014 at 10:39 AM, Carlo Vaccari <airplaniac2002@xxxxxxxxx> wrote:
It could certainly happen, but I have crashed (and in doing so, crushed) LiPos
before without fires. They were small single cell ones, the sort that would be
advisable for altimeters in order to not burn out the FETs.
On Jul 1, 2014 1:35 PM, "Jim - TFJ" <jim@xxxxxxxxxxxxxxx> wrote:
They don't like hard landings though.
Bad things happen.
RC fliers have burned up their cars.
Jim G.
From: roc-chat-bounce@xxxxxxxxxxxxx [mailto:roc-chat-bounce@xxxxxxxxxxxxx] On
Behalf Of James Dougherty
Sent: Tuesday, July 01, 2014 10:30 AM
To: ROC Chat; TCC chat; Aeropac Aeropac
Subject: [roc-chat] Re: LiPo/Li-Ion batteries
Hi David,
Powerstream ...
http://www.powerstream.com/thin-lithium-ion.htm
PGEB01180270
I've flown the smaller Sparkfun units (x2 for 7.4v) ...
https://www.sparkfun.com/products/8483
and they work well, I was just really impressed with the density of
the above ...
I have a call in to Bob F., let's get his take on these since he has
the most experience with them....
More on this later ... but I would be curious to know what other people
are using ... :-)
-James
On Mon, Jun 30, 2014 at 10:27 PM, David Smith <davew6dps@xxxxxxxxx> wrote:
Where did you fund those? I need something similar for a video camera package.
David Smith
NAR 78668, L2
Amateur Extra, W6DPS
On Jun 30, 2014 9:20 PM, "James Dougherty" <jafrado@xxxxxxxxx> wrote:
Bob Feretich has some great write ups on Lipo batteries you can find on his
site.
What is everyone using these days?
I've recently found some 3.7v 1000ma Li-Ion cells for mobile use which are
25x12x1mm thick! Amazing but needs testing.
Curious what people are using which has been flight tested...
Sent from my iPhone
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