A graphical look at the main advantage of the KX2USBC2

I've now gone through six charge/discharge cycles of my KX2's internal battery using the new KXUSBC2 to charge it and I've used different sources and USB-C cables for each charge.

Regardless of the charging voltage used, the KX2 battery gets a complete charge, whether the charging source was 5V or 15V.

Contrast that with different source voltages when used with Elecraft's KXIBC2 internal charger:

 

The charging method when using the KXUSBC2 is different that that used with Elecraft's KIXBC2:

• Elecraft's charger charges all 3 cells of the pack in series
• The KXUSBC2 charges each of the three 3.7V cells individually/simultaneously, in parallel.

Current delivered by the KXUSBC2  - and therefore, charge time - can be varied by choice of USB-C (PD) cable used.

The ideal cable to use would be something like this, allowing the user to select the charge rate. Regardless of the charge rate, a complete charge of the KX2's battery is obtained, even with a 5V source.

I personally would stay with a 5V cable for a slow, complete and safe charge - but, when were in a hurry, there are options. 

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I will be updating this posting tomorrow with what charge rates can be expected with each of this cable's selectable voltages.

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