[Elecraft] K2 Batteries - NiMh and Lithium Polymer

[Alan WB6ZQZ]

An update on my K2 Internal Battery project:


Thanks to the comments regarding my earlier NiMh query. From that I found
a better source of 10-AA holders
(www.mouser.com)
and I was again reminded of the Lithium Polymers. I see this morning that
Dan has tested his out, and Oliver KB6BA has given me some info on his
experience. I also heard about using 4/3A NiMh cells that worked well,
but did not fit in the battery tray.


My goal is to have batteries that are capable and light and fit on the K2
battery tray. Dual sets of AA NiMh (two sets of 10 in parallel) should
handle the radio well, deliver about 4AH capacity, and have moderate
weight (less than the SLA, more than the LiPo). They would be the best
for Air Travel due to familiarity and commonality. I think I will try
them later.


The LiPo cells, available from
www.batterie=
samerica.com
and others are quite interesting. The 1600 mah size (
P611 3.7v  1600mAh 
 2.35{quot}L x 1.3{quot}W x=
  34 gms (1.2 oz)=
  $12.95 ea) will easily fit on the K2=




www.fmadirect.com the cells can be paralleled if=




There are many warnings regarding Li-Ion and Li-Polymer batteries=
























www.fmadirect.com=












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