[Elecraft] Elecraft Digest, Vol 174, Issue 7

[Howard Hoyt]

Hi Peter,

Although we have not tested that specific brand of alkaline cell, in 
general alkaline cells when compared to NiMH or LI cells show much 
higher internal resistance.  This is of course why they are not as 
suitable for high-current use, and though the Duracell cells also 
measure 1.55 V open-circuit, when drawing any significant current (>250 
mA) they quickly sag to less than 1.3 V.  We have tested a Duracell 
alkaline, the results are here: https://proaudioeng.com/duracell-alkaline/

The rechargable alkaline technology has been around for quite a while, 
Eveready used to sell them, but due to charging difficulties such as 
cells leaking during charge, they were discontinued.  I suggest using 
them in an external holder until you are sure they will behave...

Cheers & 73,
Howie - WA4PSC
www.proaudioeng.com


On 10/10/2018 6:47 AM, elecraft-request at mailman.qth.net wrote:
> Hi all,
>
> did anybody tested these PURE ENERGY RAM cells AA size 1,5V / 3000mAh in
> KX3?
> I found in spec. that they are Alkaline-Manganese technology cells which are
> not dedicated
> for permanent high current (over 1A) consumption equipment...
>
> It is promising 12V instead of 9.6V in 8pcs pack. the only external charger
> should be used as
> same as LiPol...
>
> Thank for info.