NIMH TX pack

[Ed Miller]

Verne;
Sounds like there could be a problem with your A4. I've been using an A4 to
change NimH 5 cell flight packs of 1100 and 1650 mah with the C/10
peak/detect rate with no problems with heat at all. In fact batteries never
seem to get much above room temperature.
Ed M.
----- Original Message -----
From: "Verne Koester" <verne at twmi.rr.com>
To: <discussion at nsrca.org>
Sent: Friday, October 10, 2003 5:13 PM
Subject: Re: NIMH TX pack


> Derek,
> I started off with C-10 and shut down the charger after the battery got
hot,
> not warm, hot. I then tried the other functions recommended on the Litco
> site FAQ section for NIMH batteries. Of course, I discharged the batteries
> first. In every case, the batteries got hot. I honestly don't remember now
> which other functions I used other than there are a couple of functions
> Litco specifically recommends you don't use. At that point, I gave up the
> ghost and bought the Titan. This was early in the summer and it's been
fine
> all year. I assume you already have the Alpha so running a test once you
> have the pack should be easy. My personal opinion is that the peak cutoff
on
> the Alpha is designed for Nicads and doesn't work so well on Nimh. All of
> this is based on what I've read and experienced. Reality is that I only
know
> enough about electronics to get by or, sometimes, in trouble.......
>
> Verne
>
>
> ----- Original Message -----
> From: "Derek Koopowitz" <derekkoopowitz at earthlink.net>
> To: <discussion at nsrca.org>
> Sent: Thursday, October 09, 2003 9:17 PM
> Subject: RE: NIMH TX pack
>
>
> Verne,
>
> What function did you use on the A4?  Also, did you use the c/10 function
to
> charge it initially?
>
> -----Original Message-----
> From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]
On
> Behalf Of Verne Koester
> Sent: Thursday, October 09, 2003 2:38 PM
> To: discussion at nsrca.org
> Subject: Re: NIMH TX pack
>
>
> Derek,
> I went to the Litco site and read all of their instructions on using the
> Alpha on NIMH packs and followed those instructions to the letter on my
> 2000mah NIMH Tx pack. The pack got much hotter than I felt it should and I
> shut it down before it was finished. After checking with more experienced
> guys who had been using NIMH including feeling the temp of their packs at
> peak charge, I came to the conclusion that  the Alpha isn't suited to NIMH
> batteries. I bought a GP Titan charger and it works great. This isn't
meant
> to slight the Alpha in any way since I've been using it on Nicads with
great
> success for years. However, my experience indicates it isn't he best
choice
> for NIMH.
>
> Verne
>
>
> ----- Original Message -----
> From: "Derek Koopowitz" <derekkoopowitz at earthlink.net>
> To: <discussion at nsrca.org>
> Sent: Thursday, October 09, 2003 4:54 PM
> Subject: NIMH TX pack
>
>
> > I just ordered a new (replacement) TX NimH battery pack from Cermark.
> > It
> is a 1650mah pack.  I've never had a NimH pack before so I'd like to find
> out from the experts out there if there is anything I need to do
differently
> than a standard NiCad pack.  Can I use my Alpha 4 to charge it?  I do have
a
> Dymond charger that I can use and I know that it does support NimH but I'd
> prefer to use the Alpha 4 because of its AC/DC versatility.
> >
> >
> > Thanks.
> >
> >
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> >
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