[Elecraft] [K2] Has the k2 a future - not if you use Li-Po cells!

[Greg Williams]

Hi Guys
I have a mate, Ian VK3FFLY, who is into flying radio controlled models 
using Li-Po cells and they are very careful about the way they charge 
them - always in a metal box (not the radio cabinet!). Several of them 
have had fires from charging these cells. Ian suggests you have a look 
at http://www.rcgroups.com/forums/showthread.php?t=209187

Ian's son-in-law had a house fire in the last couple of months from a 
charging Li-Po - luckily he was home and the smoke alarm worked so he 
just had damage to the one room.

Greg VK3VT


Subject:
Re: [Elecraft] [K2] Re： has the k2 a future?
From:
"Leigh L. Klotz Jr WA5ZNU" <Leigh at WA5ZNU.org>
Date:
Fri, 16 Oct 2009 11:15:58 -0700 (PDT)

To:
elecraft at mailman.qth.net


Johnny,
Do you have pictures posted?   I remember when you started this project and
I'd like to see how it worked out.

Presonally I lean more toward LiFePO4; although they have a lower energy
density than the Li-Po (though higher power density) they reportedly are
safer in conditions of over/under charge and mechanical stress.

Leigh/WA5ZNU

Johnny Siu wrote:

> 
> Hello Wayne,
> 
> Yes, K2 is still my favourite field day and QRP rig and no others can bit
> it.
> 
> I now have 3 x 3.7v 3300mAH Li-Po cells in the KBT2 and they work very
> well.
> 
> 73
> 
> Johnny VR2XMC
>