LITHIUM AA BATTERIES FOR BACKPACKERS
- 40% Lighter
- Lasts more than twice as long
- Works well at below freezing temperatures
- Stores for ten years, last year to use
is marked on the battery case
This battery replaces all "AA" size
batteries, as the manufacturer states (the case says PHOTO on it
because that was the original market for the battery) Comes in 2-pack
Backpackers often use AA batteries for flashlights,
and also for GPS units and portable radios. The advantage of 40%
weight reduction, more than twice the life, working well at below
freezing temperatures and having the useful-life date marked on
the battery has to cost more
but we consider it worth the cost of about $3.00 per battery.
The cheapest AA battery uses carbon zinc chemistry
and has the shortest life, among other disadvantages. A little higher
cost AA battery is the alkaline battery with somewhat better life.
The 40% lighter lithium battery is the best but most expensive AA
cell. It is made only by Eveready, and besides lower weight has
all of the advantages listed above compared to the cheaper batteries.
There have been a number of small lithium batteries
around for the last few years, made by a number of manufacturers.
These batteries have unique shapes and a higher voltage output,
around three volts, as compared to the normal AA battery which provides
1.5 volts and is the standard AA size. Apparently Eveready is the
only company that did the research and development to change the
cathode from manganese dioxide to iron sulfide. This dropped the
voltage to 1.5 volts but maintained all the other advantages of
lithium, in an AA configuration. This provides a battery that replaces
all "AA" size batteries, as the manufacturer states.
HEI does not carry these batteries at the current
time because we would have to add shipping to their cost and our
customers are more likely to purchase them locally . You should
look for them in photo stores. Also ask your local super-markets,
hardware and discount stores that carry batteries to carry these
as well. The Eveready battery model number is L91 and comes in 2-pack
and 4-pack packages.