[Elecraft] KX3 Battery charging

[Dick, WN3R]

I noticed that my Powerex 2400 mah batteries do not seem to be charging 
in the KX3. I took them
out and put them on a dedicated charger. I'm sure they are fine.

I just installed Sanyo 1900 mah batteries to see there is a difference. 
I won't know for awhile.

So here's my question:  Is 2400 mah capacity too high for the KX3 
charger? If not and
the 1900 mah don't charge either I will have isolated the problem. If 
so, are the
1900 mah capacity OK?

All batteries are less then 2 years old and lightly used.

73, Dick, WN3R