John, I have a K2/10 and I am using this LiFePo4 battery installed inside
the radio.
http://www.batteryspace.com/lifepo426650battery128v3300mah42wh7aratewpcb.aspxhttp://www.batteryspace.com/smartcharger15afor128vlifepo4batterypack4cells152vcut-offwith55mmx21mmmalebarrelplug.aspx I contacted this company and they gladly added separate charging leads to
the battery's PCB for free. I got the charger that they recommend for this
battery (second link) and I hooked it up as follows. Discharging leads to
the aux 12v on board. Charging leads to panel mount 5.5 x 2.1mm jack which
fits perfectly in the xvrter hole.
I flip the battery switch from the KBT2 to off when charging and on when
running off batteries.
Works very well and very light.
73
Lyam
N9LVG
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