[NSRCA-discussion] battery capacity ?

Mike Hester kerlock at comcast.net
Fri May 23 10:26:44 AKDT 2008 

I agree with Bob, ESPECIALLY with NiMH packs. You have to "form" them 
slowly, and that means 3-5 cycles at C/10. Slow discharge as well. if you 
don't you will never get the capacity it's rated for, and sometimes ruin a 
cell in the process. Some cells are more finicky this way than others....

-Mike

----- Original Message ----- 
From: "Bob Richards" <bob at toprudder.com>
To: "General pattern discussion" <nsrca-discussion at lists.nsrca.org>
Sent: Friday, May 23, 2008 2:19 PM
Subject: Re: [NSRCA-discussion] battery capacity ?


> Before you come to any conclusions about the capacity, put the pack on a 
> good old-fashioned C/10 charge for 16 hours (in your case, 150ma charge 
> rate). Then discharge using your cycler.
>
> Some cyclers will only charge until they detect a peak, and then switch to 
> a discharge to measure the capacity. The problem is that all the cells in 
> the pack need to be equalized, and you can't do that with a peak detection 
> charger. The cycle feature in my Accucycle Elite acts this way, and this 
> is one thing about it that I don't like. I had a new pack that had similar 
> symptoms as yours when I cycled it using my Accucyle, but after I 
> performed the C/10 charge the pack tested fine.
>
> I will use a peak detect fast charger to top off my batteries, but I still 
> prefer the C/10 charge overnight. The Accucyle will do that, it will fast 
> charge until it detects a peak, then switch to a normal slow charge.
>
> Bob R.
>
> --- On Fri, 5/23/08, Jerry Wilson <jcwilsonjr at comcast.net> wrote:
>
>> From: Jerry Wilson <jcwilsonjr at comcast.net>
>> Subject: [NSRCA-discussion] battery capacity ?
>> To: "'General pattern discussion'" <nsrca-discussion at lists.nsrca.org>
>> Date: Friday, May 23, 2008, 10:43 AM
>> I have a new 1450 mah NiMH rcvr pack.
>>
>>
>>
>> After 4 cycles my super tester only shows about 1150 - 1200
>> mah capacity.
>>
>>
>>
>> Would this be considered normal for a new pack?
>>
>>
>>
>> Thanks
>>
>> Jerry
>>
>>
>>
>>
>>
>>
>>
>>   _____
>>
>> From: nsrca-discussion-bounces at lists.nsrca.org
>> [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf
>> Of Keith Black
>> Sent: Wednesday, May 14, 2008 10:21 PM
>> To: General pattern discussion
>> Subject: Re: [NSRCA-discussion] Fuel tanks clunks
>>
>>
>>
>> I strongly recommend the YS foam clunk, they're
>> awesome! Pricy, but they
>> last a very long time and in my experience completely
>> remove the problem of
>> bubbles (plus get every last drop of fuel in the tank).
>> They're also much
>> easier than bladder tanks or header tanks.
>>
>>
>>
>> Keith Black
>>
>> ----- Original Message ----- 
>>
>> From: Jon Lowe <mailto:jonlowe at aol.com>
>>
>> To: nsrca-discussion at lists.nsrca.org
>>
>> Sent: Wednesday, May 14, 2008 12:30 PM
>>
>> Subject: Re: [NSRCA-discussion] Fuel tanks clunks
>>
>>
>>
>> The OS clunk is heavier, and works better with the common
>> fuel tubing we
>> use.  The Dubro piece is so light that it will not bend
>> fuel tubing to the
>> bottom of the tank.
>>
>> Jon Lowe
>>
>>
>>
>> -----Original Message-----
>> From: Dave Burton <burtona at atmc.net>
>> To: 'General pattern discussion'
>> <nsrca-discussion at lists.nsrca.org>
>> Sent: Wed, 14 May 2008 10:30 am
>> Subject: Re: [NSRCA-discussion] Fuel tanks clunks
>>
>> DuBro filter clunk- $2.35
>>
>> OS filter clunk - $14.95
>>
>>
>>
>> Decisions, decisions!
>>
>>
>>
>> From:
>> <mailto:nsrca-discussion-bounces at lists.nsrca.org>
>> nsrca-discussion-bounces at lists.nsrca.org [
>> <mailto:nsrca-discussion-bounces at lists.nsrca.org?>
>> mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf
>> Of
>> <mailto:ronlock at comcast.net> ronlock at comcast.net
>> Sent: Wednesday, May 14, 2008 11:20 AM
>> To: General pattern discussion
>> Subject: Re: [NSRCA-discussion] Fuel tanks clunks
>>
>>
>>
>> Yea Ed,  That OS part looks like the same idea.
>>
>>
>>
>> The "DuBro Tank Filter" is at
>>
>>
>> <http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXD741&P=7>
>> http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXD741&P=7
>>
>>
>>
>> Later, Ron Lockhart
>>
>>
>>
>> From: "Ed Miller" <
>> <mailto:edbon85 at tds.net> edbon85 at tds.net>
>>
>> > Try this:
>> >
>> <http://www3.towerhobbies.com/cgi-bin/wti0095p?FVPROFIL=++&FVSEARCH=71531000
>> >
>> http://www3.towerhobbies.com/cgi-bin/wti0095p?FVPROFIL=++&FVSEARCH=71531000
>>
>> > Ed M.
>> > ----- Original Message ----- 
>> > From:
>> > To: ; "General pattern discussion"
>> > ; "General pattern discussion"
>> >
>> > Sent: Wednesday, May 14, 2008 10:48 AM
>> > Subject: Re: [NSRCA-discussion] Fuel tanks
>> >
>> >
>> > > Ive had good success with DuBro sintered bronze
>> (?) clunks. The ones
>> that
>> > > look like
>> > > they are made from tiny bronze color BBs. They
>> seem to break up any foam
>>
>> > > & bubbles.
>> > >
>> > > Ron Lockhart
>> > >
>> > > -------------- Original message -------------- 
>> > > From: mike mueller
>> > > John I remember running a foam i nsert but I
>> don't remember if it
>> helped.
>> > > What I do remember is it deteriating and getting
>> crap into the fuel
>> lines.
>> > > I think another thing that might help is the foam
>> clunk from YS. It's
>> > > supposed to help keep fuel supply even during the
>> moments in flight when
>>
>> > > pickup might be lost. Right now I'm more
>> concerned with sloshing
>> electrons
>> > > around. Mike
>> > >
>> > > --- On Wed, 5/14/08, John Konneker wrote:
>> > >
>> > > From: John Konneker
>> > > Subject: [NSRCA-discussion] Fuel tanks
>> > > To: "Discussion List"
>> > > Date: Wednesday, May 14, 2008, 8:37 AM
>> > >
>> > >
>> > > I am running a 24 oz tank right now for practice
>> but would like to run
>> > > either a smaller tank or less fuel load for
>> contests.
>> > > This has me thinking...seems I once heard that
>> NAS CAR ru ns some kind
>> of
>> > > foam in their gas tanks to eliminate sloshing.
>> > > Anyone ever heard of or tried something similar
>> in a model?
>> > > JLK
>> > >
>> > > _______________________________________________
>> > > NSRCA-discussion mailing list
>> > >  <mailto:NSRCA-discussion at lists.nsrca.org>
>> NSRCA-discussion at lists.nsrca.org
>> > >
>> <http://lists.nsrca.org/mailman/listinfo/nsrca-discussion>
>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>> >
>> >
>> >
>> ----------------------------------------------------------------------------
>> ---- 
>> >
>> >
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>>   _____
>>
>>
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>> <http://www.mapquest.com/?ncid=mpqmap00030000000004>
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>>
>>
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>>
>>
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