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Old Oct 16, 2007, 09:05 PM
Craig Allen
Guest
n/a Posts
Great product and Great couple too :-)

While getting ready for Visalia I decided to check out my battery packs and was surprised to learn they all took substantially less charge than their stated capacity.

So I bought some new batteries... Slow charged then over night.. Cycled then a few times and the same thing.. A brand-new 2000ma battery was only taking 1200ma....

Hmmmm... Whats a poor guy to do.. That's when I ran into a great product by George and Jo Joy of Peak Electronics. It's called a Forming Charger and sells for about $44 as I recall.. You put your batteries on it for 24 hours and it forms the battery... I have done all my batteries now (new and old) and it's amazing, they all now take their stated capacity or dam close....

www.SiriusElectronics.com Great people... Great products....

Craig


Old Oct 16, 2007, 09:36 PM
Phil Barnes
Guest
n/a Posts
Re: Great product and Great couple too :-)


----- Original Message -----
From: "Craig Allen" <craigdallen@sbcglobal.net>

> That's when I ran into a great product by George and Jo Joy of Peak
> >Electronics. It's called a Forming Charger and sells for about $44 as I
> >recall.


I am also a great fan of Sirius products and of their service. I even bought
one of those forming chargers. However, I'd like to point out that the
Forming charger is nothing more than a slow charger. As I recall, you can
set the charge rate to something that is close to a C/10 (Capacity of the
pack in Mah divided by 10) rate for your particular battery pack. Beyond
that ability to set the charge rate, it is just a dumb, slow charger. That
is all your new packs need though. A forming charge is just an initial slow
charge, nothing more than that. A slow charge at a C/10 rate should take
about 14 hours. You likely could have accomplished the same forming charge
by leaving them on your standard charger for long enough. The length of time
it would take would depend on the charge rate of your old charger and the
capacity of your packs. It sounds like you simply weren't charging them long
enough with the old charger.

This sounds very much like something I read on the Radical RC site:

http://members.aol.com/davthacker/nimhfaq.htm

Scroll way down to the heading that says "Your New Battery Pack". Just
remember that it will take 14 hours to slow charge at the C/10 rate. It will
take a lot longer at a slower charge rate.

More good info on this page:

http://members.aol.com/davthacker/abattfaq.html

Phil


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Old Oct 16, 2007, 10:41 PM
S Meyer
Guest
n/a Posts
Re: Great product and Great couple too :-)

I have seen something like this as well. Fast chargers will
typically false peak at higher charge rates. Particularly on NiMH
packs and smaller HL packs. So I do not always trust fast chargers
at charging to full capacity and take this into account when
predicting flight time.

Steve Meyer
LSF IV
Racine WI

At 08:36 PM 10/16/2007, "Phil Barnes" <philipdbarnes@verizon.net> wrote:

>----- Original Message ----- From: "Craig Allen" <craigdallen@sbcglobal.net>
>
>>That's when I ran into a great product by George and Jo Joy of
>>Peak >Electronics. It's called a Forming Charger and sells for
>>about $44 as I >recall.

>
>I am also a great fan of Sirius products and of their service. I
>even bought one of those forming chargers. However, I'd like to
>point out that the Forming charger is nothing more than a slow
>charger. As I recall, you can set the charge rate to something that
>is close to a C/10 (Capacity of the pack in Mah divided by 10) rate
>for your particular battery pack. Beyond that ability to set the
>charge rate, it is just a dumb, slow charger. That is all your new
>packs need though. A forming charge is just an initial slow charge,
>nothing more than that. A slow charge at a C/10 rate should take
>about 14 hours. You likely could have accomplished the same forming
>charge by leaving them on your standard charger for long enough. The
>length of time it would take would depend on the charge rate of your
>old charger and the capacity of your packs. It sounds like you
>simply weren't charging them long enough with the old charger.
>
>This sounds very much like something I read on the Radical RC site:
>
>http://members.aol.com/davthacker/nimhfaq.htm
>
>Scroll way down to the heading that says "Your New Battery Pack".
>Just remember that it will take 14 hours to slow charge at the C/10
>rate. It will take a lot longer at a slower charge rate.
>
>More good info on this page:
>
>http://members.aol.com/davthacker/abattfaq.html
>
>Phil
>
>RCSE-List facilities provided by Model Airplane News. Send
>"subscribe" and "unsubscribe" requests to
>soaring-request@airage.com. Please note that subscribe and
>unsubscribe messages must be sent in text only format with MIME
>turned off. Email sent from web based email such as Hotmail and AOL
>are generally NOT in text format


RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to soaring-request@airage.com. Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
 


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