Rav-O-Vac makes alkakines that are meant to be charged in their special
charger.  I don't know what the specs are but the terminal voltage looks
like an alkaline cell.  Still, >1.6V is a lot to ask of any alkaline
cell.

Sherpa Doug

> -----Original Message-----
> From: Roman Black [mailto:fastvid@EZY.NET.AU]
> Sent: Monday, January 28, 2002 9:32 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: {EE]: Prolonging life-time of alkaline cell
>
>
> BE CAREFUL! One thing apprentices have done is
> to mistakenly replace the backup NiCds in some TVs
> with alkaline cells. Both AA size, which explains
> the mistake.
>
> They WILL burst, releasing acid liquid and vapor.
> I've cleaned it from a few sets. The Philips one
> I remember trickles about 4mA into the battery,
> can't speak for very low currents but 4mA killed
> that one in a couple of days.
> -Roman
>
>
> Jinx wrote:
> >
> > The shelf life for a 1.5V alkaline cell is given as 10 years. If
> > I use such a cell for rare back-up occassions in a circuit and
> > keep 1.65V across it (correct terminal voltage ?), will it then
> > last indefinitely ?
> >
> > I'm guessing that the 10 years is the period of self-discharge
> > after which th cell is flat, and hopefully not the time after which
> > is expected to corrode, charged or not
> >
> > The circuit requires >1.6V, NiCd or other battery types not an
> > option. Quite happy with just the one alkaline
>
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