[NSRCA-discussion] Landmark for e-pattern: >1C charging

Thu Mar 16 12:52:21 AKST 2006

 Jim you and I both paid to much, contact Adam Glatt on anything Draganfly
carries you won't be sorry.

Steven Maxwell

> [Original Message]
> From: J.Oddino <joddino at socal.rr.com>
> To: NSRCA Mailing List <nsrca-discussion at lists.nsrca.org>
> Date: 3/16/2006 1:20:58 PM
> Subject: Re: [NSRCA-discussion] Landmark for e-pattern: >1C charging
>
> I paid $199 and $99 from TP.  Try Dragonfly.  This combination looks like
> the way to go as far as I can see.  You can charge your two 5s packs in
> series and assure all cells are balanced.  You can actually read out each
> cell or bank of cells if they are paralleled.  This gives me a warm
feeling
> vs. looking at blinking LEDs.
>
> Jim O
>
>
> ----- Original Message ----- 
> From: "Pat Hewitt" <phewitt at farmersagent.com>
> To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>; "NSRCA
Mailing
> List" <nsrca-discussion at lists.nsrca.org>; "NSRCA Mailing List"
> <nsrca-discussion at lists.nsrca.org>
> Sent: Thursday, March 16, 2006 6:10 AM
> Subject: Re: [NSRCA-discussion] Landmark for e-pattern: >1C charging
>
>
> Anybody know the retail price and will a TP-1010 work as the charger along
> with the TP-210V.
>
> Thanks
>
> Pat Hewitt
>
>
>
>
>
> ------ Original Message ------
> Received: 08:27 PM CST, 03/15/2006
> From: vicenterc at comcast.net
> To: NSRCA Mailing List <nsrca-discussion at lists.nsrca.org>,        "NSRCA
> Mailing List" <nsrca-discussion at lists.nsrca.org>
> Subject: Re: [NSRCA-discussion] Landmark for e-pattern: >1C charging
>
> Earl,
>
> Good to know that you are testing.  Please keep us posted with the
resulsts
> of
> your test.
>
> Regards,
>
> Vicente Bortone
>
> -------------- Original message -------------- 
> From: "Earl Haury" <ehaury at houston.rr.com>
>
> Vincente
>
> Falcon Batteries are located in Houston, have been supplying batteries to
> the
> sport guys for several years, and enjoy a reputation for having a good
> product
> with good service.
>
> Last fall they expressed interest in the pattern market but were unsure of
> the
> requirements. I had just entered the E-power arena for pattern and had a
> Partner (Hacker C50-14) fitted with equipment capable of recording
relevant
> parameters in flight. Falcon loaned me 5S2P -5000 mAh packs which I flew
and
> compared performance with that of well known "pattern" packs.
>
> I insisted that pack life was equal to flight performance in importance.
> Falcon responded by creating the F3A Pro Series packs described in their
ad
> in
> the K-Factor. Their philosophy is that precise cell matching in packs
using
> the absolute best cells with respect to voltage / capacity / impedance
will
> result in exceptional pack life. They chose to use a 5S2P configuration to
> limit cell count for reliability. They also selected the relatively new
> "High
> Voltage Retention" cells to meet my requirement of maximum voltage at the
> current flow observed in pattern. As you've noted, they back their product
> with a 6 month warranty.
>
> I've been flying the Falcon F3A Pro packs since late December. The data
I've
> gathered indicate these cells are, at least, equal to other packs I've
flown
> in terms of minimum voltage at pattern current flow throughout F3A P/F
> flights. Pack heating is quite low. So far I've 40 flights on one set -
> mostly
> P-07, and see no degradation in flight performance. Cell set balance is
> exceptional (balancing connector included). Only time will tell how long
> these
> things will last, but with Falcon's warranty I don't have to worry about a
> budget busting experience. I'll let the list know as I reach cycle
> milestones.
> The only negative to these packs is that the weight is 1260 grams which
> takes
> care (I've 2 legal airplanes) to meet 5 Kg. - but certainly a
consideration.
>
> And yes, I've received some price consideration for the testing and data
> evaluation I've performed.
>
> Earl
>
>
> ----- Original Message ----- 
> From: vicenterc at comcast.net
> To: NSRCA Mailing List ; 'NSRCA Mailing List'
> Sent: Wednesday, March 15, 2006 7:32 AM
> Subject: Re: [NSRCA-discussion] Landmark for e-pattern: >1C charging
>
>
> Better news is the battery manufacturer that is giving 6 months of
warranty.
> See the add in the last k-Factor. I think is called Falcon Batteries.  I
> never
> seen the brand but the fact that they are giving 6 months warranty is very
> important.  I hope that the competition start to see this trend and we see
> warranty going up to a year.
>
> Who is using those batteries?  Reports good or bad are welcome.
>
> Regards,
>
> Vicente Bortone
>
> -------------- Original message -------------- 
> From: "Cameron Smith" <dentdoc007 at adelphia.net>
>
> > I have been using that charging combo.
> >
> > Charging 4 new TP 2100mah Prolites @ 1.5C to 95% capacity in about 35
> > Minutes. (On 2 charger combos)
> > This yields easy 10 minute flight on a 300+ watt system per battery,
> > using around 1600-1700 mah.
> >
> > After following Charlie's advice I tried 2C but only gained less than 4
> > minutes in charge time so I backed it down. I pay for my packs so I want
> > to see others do 3C for a longer period of time before I "Crank it up"
> >
> > After doing this the old 1C rate/single charger for a couple years now,
> > 4 times as much in 1/2 the time is Cool!
> >
> > I agree with Adam, This is good news for electrics.
> >
> >
> >
> > >
> >
> >
> >
> >
> >
> > -----Original Message----- 
> > From: nsrca-discussion-bounces at lists.nsrca.org
> > [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Adam
> > Glatt
> > Sent: Tuesday, March 14, 2006 11:16 PM
> > To: NSRCA Mailing List
> > Subject: [NSRCA-discussion] Landmark for e-pattern: >1C charging
> >
> > http://www.rcgroups.com/forums/showpost.php?p=5182816&postcount=24
> > That post is by Charlie Wang, head of Thunder Power. Charlie has been
> > running cycle test experiments where he cycles Thunder Power Pro Lite
> > batteries with 2C and 3C charge rates, and 4C discharge rates. His
> > experiments have convinced him that 3C charging of Thunder Power Pro
> > Lite batteries does not harm the batteries.
> >
> > This is a major step for electric R/C. Consider a situation with one
> > charger, two batteries, and 10 minute flights ! - low cost, typical
> > pattern and sport equipment. Charge times are inside of 30 minutes.
> > Allowing 5 minutes for pack cool-down, it is possible to log 5 flights
> > in less than 2 hours. In a pattern situation this isn't yet possible,
> > because it takes a 16A charger to charge the 5.3Ah pack at 3C and they
> > don't exist. Using available chargers, two TP 1010's ($320-$400), two
> > TP 210 balancers ($140-$200), and four 5s4p5300 packs ($1100-$1300), the
> >
> > time for 5 flights would be something like 130minutes.
> >
> > 3C charging (currently 2C with pattern packs and available chargers)
> > allows you to fly just as much with fewer batteries. That saves outlay
> > costs, if not cost per flight, and certainly reduces the length of time
> > you are stuck with current technology.
> >
> > More good news from the electric world.
> >
> > Those of you planning on charging at >1C, make sure you read Charlie's
> > post. He gives specific guidelines! and practices.
> >
> > -Adam
> > _______________________________________________
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