[Elecraft] [ KX2] KXBT2 Charger

[Bob N3MNT]

One of the main failure modes of Li-Ion batteries is trying to charge a
defective battery ( puffed pack).  When Li-Ion batteries begin to fail one
or more cells develop a high internal resistance and heat up during
charging.  The 2hr warning is likely driven by the danger of trying to
charge a bad pack more than the a time limit  for a good pack.  For packs
with built in management/balancing circuitry ( no access to individual
cells) it is difficult to see a  bad cell.  If you are concerned, there are
fireproof pouches to put the battery in during charging.  You can get them
from most major RC model sites. 



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