[roc-chat] Re: LiPo/Li-Ion batteries
- From: James Dougherty <jafrado@xxxxxxxxx>
- To: ROC Chat <roc-chat@xxxxxxxxxxxxx>
- Date: Tue, 1 Jul 2014 14:36:50 -0700
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
>>>>>>
>>>>>> --
>>>>>> ROC-Chat mailing list
>>>>>> roc-chat@xxxxxxxxxxxxx
>>>>>> //www.freelists.org/list/roc-chat
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>
>>
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