[Elecraft] KX3 won't go above 10W

[Jim Brown]

On 6/24/2019 12:59 PM, Mark Goldberg wrote:
> Go with LiFePO4 cells

Yes. This ham-friendly company sells a wide range of LiFePO4 batteries. 
Charge before you leave home (all Li batteries require a charger 
designed for their specific chemistry, voltage, and capacity), connect 
to your KX2/3 external power jack. Choose the capacity/weight that suits 
your planned use.

$50 will get you 3Ah that weighs 13 oz; add $15 for the charger. A 6Ah 
battery goes for $80, approximately twice the weight. I paid about $195 
for a 20Ah battery that weighs 5.4#, +$20 for a faster charger.

https://www.bioennopower.com/collections/12v-series-lifepo4-batteries

73, Jim K9YC