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Re: [OM] NiCads versus NiMH [was] [OT] As the Winder Turns: Some of the

Subject: Re: [OM] NiCads versus NiMH [was] [OT] As the Winder Turns: Some of the Early Experimen
From: "C.H.Ling" <chling@xxxxxxxxxxxx>
Date: Sun, 12 Nov 2000 21:35:04 +0800
----- Original Message -----
From: "John A. Lind" <jlind@xxxxxxxxxxx>


> At 21:11 11/11/00 , Giles wrote:
> >However, I did mange to get some.  I prefer NiCad to NiMh personally.
> >
> >Giles
>
> Hmmm, that's why I put the "??" after the capacity for the NiCads.  Just
as
> for NiMH, there are higher and lower capacity versions.
>
> One thing that puzzles me is your preference for NiCads over NiMH.  NiCads
> are notorious for developing a charging memory if "topped off."
Supposedly
> NiMH do not suffer this, and last longer (more recharges) before they
> noticeably degrade.  However, I'm no expert on NiMH.  Is there something
> you know about a downside to NiMH cells that those of us new to them
don't?
>  (Wouldn't surprise me that they are not a panacea.)
>

I got no technical paper backup, but I heard the NiMH batteries are more
sensitive to overcharge, it will reduce the battery life. On the other hand
I have had very bad experience with the early Hitachi NiMH, its self
discharge rate is very high. Even the newer one is not so good, I had run
two sets of NiMH on two T32 at full power discharge during a product
shooting session, the one that freshly charged had lasted for around 110
shots while the one I have charged and stored for around 1 month only gave
around 50 shots.

C.H.Ling

> The charger I have will handle either.  I looked for balanced comparative
> data, but found mostly advertising hype requiring much reading between the
> lines.
>
> -- John



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