I have a TH-F6 which I have had for about 2 1/2 years. It has been very
well treated, and care has been taken to treat the battery properly. I
noticed that the battery would no longer hold a charge. I tried to
remove the battery, and it was extremely difficult. It turns out that
the battery was slightly swollen, and pressing against the HT case.
LI-ion batteries trouble me a bit. I have seen some explosions and
fires in RC aircraft using them. I wonder if anyone else has had a
similar problem with the PB-42L stock battery with the TH-F6?

Al / K1LTJ