Hello, I’m Nathan, and I’ll be assisting you today. My livelihood depends on your positive feedback, so your satisfaction is my highest priority.
Sorry to hear you’re having trouble, Bobby.
This may be an issue with the batteries themselves. Even though NiMH batteries are compatible, they may not register a charge the same way on your existing charger. This can also just be an issue with the AA size format, which doesn't fit to the charger contacts as well as the crv3 shaped model does.
It would be safer and give better performance to buy the crv3 type: http://amzn.to/1MtcjJO
That doesn't mean that they aren't charging however. This can be dangerous though as they can over charge.