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

[Johnny Siu]

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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