I used the camera with 2xAA NiMH batteries. Have no Problem with them for 5 years. Since I have forgot to change battery and then camera gone to factory defaults. After that it is not possible to take more than 4-5 photos with rechargeble batteries... New batteries, nothing changed. I uploaded firmware to it. no matter. Does the camera return a stage that it can not use rechargable batteries or a stage that the sensor assume a cut-off level, 3 volt, and below that it assumes low battery. How can I solve?

Cameras - Nikon - COOLPIX