[Elecraft] Replacing the Lead acid shell inside K2 with Li-Po cells

[AD6XY]

I thought about this and even bought a 3 cell battery and balanced charger -
then I realised the dangers of LiPo and decided against it in favour of 10
2.5AH NiMH cells in a 5 over 5 holder. This fits in fine in place of the
lead acid, is a lot lighter and can be charged quite easily with minor
modifications to the K2 battery system.

I am interested in the results though as I still have the LiPo and balanced
charger.

Mike


Johnny Siu wrote:
> 
> Hello Group,
> 
> 3.7v 3300mAH Li-Po cells are cheaply available locally.  Multifunction
> balance intelligent chargers are cheap as well.  I am seriously thinking
> of replacing the lead acid cell inside the KBT2 with 3 x 3.7v Li-Po cells.
> 
> However, charging of the Li-Po cells requires multifunction charger.  The
> existing battery circuity inside K2 seems not fit for this purpose.  A
> direct connection to the battery terminals is required.
> 
> I would be grateful if any of you could advise me the 'do' and 'don't'
> that I should pay attention to.
> 
> With the Li-Po cells installed, the weight of K2 QRP will be much reduced
> with more battery capacity.  K2 is even more suitable for ARES purposes.
> 
> Looking forward to your advice.
> 
> TNX & 73
> 
> Johnny VR2XMC
> 
> 
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