NTN4734A Charger behaving weird

[lexxtank]

Ok, I got this charger about a month ago with a battery and an Astro Saber. The battery it came with "Batt A" is a Ni-CD 1800 mAh. "Batt B" purchased online is a 2700mAh Ni-MH For about 2 weeks now I have been using the radio with Batt B and then leaving it in the charger over night. It usually hits complete (green) before I finally fall asleep. Just about half an hour ago I noticed it never hit green within its usual time. I decided to take the battery out and reinsert it. I then got a yellow light that said standby with a picture of a thermometer inside a battery. After taking the battery back out I noticed the battery didn't seem hot. The charger felt hot, but I decided to test it Batt A. Batt A went in and it starting charging like normal. Any ideas? Thanks.

[escomm]

Sounds like your aftermarket battery could be living up to its name.

[lexxtank]

Both are after market, and as it turns out if I pull out Batt B and put it back in (like I do with A) the same thing happens. I think the charger might be bad, but I'm not sure. Anyone know a way to fix this?