I've been using the Powergenix NiZn cells too, and they do give a usefully
higher pack voltage than even the Energizer Lithium AA cells. They are not
as easy to manage as Nimh cells, however. You have to use the supplied
charger with them, which seems not to initiate recharging unless the cell is
have lower energy density than regular Li-Ion rechargeables but due to lower
voltage one can use 4 of them for about 14 V max as opposed to 3 of the
regular ones with 12V max. For K1 the 3 Li-Ion would be a better fit as
10-12V is sufficient and weight is half of LiFePO3. The last one are better
I found some LiFePO3 batteries that fit well within the KX1 case, and
thought I would share:
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=14075
These are a different Lithium chemistry (same as A123 cells) than the more
common LiPoly cells. Their fully charged voltage is 3.6
On 3/27/2011 7:02 PM, Chip Stratton wrote:
I found some LiFePO3 batteries that fit well within the KX1 case, and
thought I would share:
I wouldn't put any high energy density battery inside any of my radios.
The probability of a problem is very small. The impact if the
probability becomes
Fred's concern's noted. Consider however how infrequently laptops and cell
phones catch fire and explode compared to the numbers in use - and almost
all now use LiPoly or the less common (but safer) LiFePO4 technology. With
any rechargeable Lithium technology proper charging techniques and
-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Chip Stratton
Sent: Sunday, March 27, 2011 8:04 PM
To: Elecraft Reflector
Subject: Re: [Elecraft] [KX1] A LiFePO4 internal battery option
Fred's concern's noted. Consider however how infrequently laptops and cell
phones
Those are 6.6v, so I guess you use a pair?
I've been using LiFePO4 in a lot of things, but haven't seen these that fit
in the KX1. At 700mAH they're a bit small, but the constant operating
voltage is nice.
You might take a look at these, which are available at Fry's and Amazon:
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