[Elecraft] ****KX1 Lithium Batteries****

[Phil Wheeler]

Use of the correct terminology is best.

The AA cells we use in the standard KX1 battery holder are Lithiums 
(nominally 1.5 V or so) and cannot be recharged.  I like them for their 
long life, light weight (maybe 60% of alkalines) and low temperature 
operation.  I use them in my LED headlamp (100 hrs rated) and my GPS 
receivers -- since I do quite a bit of winter/snow backpacking and 
dayhihking.

Most if not all of the 3.6 V cells I've seen are Lithium Ion or Lithium 
Polymer and can be recharged -- carefully -- using a charger designed 
for them (e.g., Maha C-777Plus or C-777Plus II).

I've not found the latter in an AA configuration, but it would sure be 
neat if someone knows of such!

Caveat:  Though an EE, battteries are not my area of expertise (hmmm .. 
not sure I have any such areas left anymore!)

73, Phil

Daniel Brinneman wrote:

>Hi Elecraft gang,
>
>What is the standard battery voltage being used for the AA Lithium batteries in the KX1?  Do lithiums last a long time no matter the voltage rating?? Some of my finds below are used as CMOS/underwater/security batteries and I think that one of them states to have a slow current drop-off.
>
>
>On this note I have found two links that would benefit the user.  If you would like to do some tests on more expensive batteries. 1st test use these 3.6V AA packaged lithiums just like you use the 1.5V lithiums. See how long they last. See Link(s)::
>  
>