[Elecraft] Experience with Energizer Lithium AA Batteries?

[Julia Tuttle]

I use them in a lot of things and love them. They're lighter, slightly
higher voltage than alkaline (which are themselves higher than NiMH), they
maintain a flat voltage longer, and they handle in the cold or under high
loads (but not both) better.

My only caution is that, because the discharge curve is so flat, you get
*very little* warning when they die. If you're used to judging remaining
capacity based on voltage, you'll be unpleasantly surprised.

Hope this helps,

Julie



On Wed, May 10, 2023, 00:11 Matthew Cook via Elecraft <
elecraft at mailman.qth.net> wrote:

> Walter,
>
> These cells have a slightly higher terminal voltage 1.82 c.f 1.65 (when
> full) from your normal heavy duty alkaline battery... flat is still the
> same at 1.0V under load discharge curve is what you'd expect under
> moderate/high loads.
>
> We regularly fly these (and only these cells) in our high altitude balloon
> experiments at reasonable currents (> 200mA), so at temperatures below zero
> celsius (+32F) they still have significant *usable* capacity.   They will
> certainly give your Enerloops a run for their money.
>
> 73
>
> Matthew
> VK5ZM
>
>
> On Tue, 9 May 2023 at 06:04, Walter Underwood <wunder at wunderwood.org>
> wrote:
>
> > I’m considering taking Energizer Ultimate Lithium AA batteries
> > (non-rechargeable) in my KX3 on a backpacking trip. They are half the
> > weight of Eneloop Pro and have about 40% more Watt-hours of energy.
> >
> > Anybody tried these? How did they work?
> >
> > wunder
> > K6WRU
> > Walter Underwood
> > CM87wj
> > http://observer.wunderwood.org/ (my blog)
> >
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