Answer to "My camera keeps saying "battery exhausted". How to fix it?"Hi Cole, I had the same problem with my Nikon Coolpix L100. I tried everything, but without luck. I realised that in my case the problem was linked to Firmware being out of date. I wasn’t able to access the menu despite changing batteries. I have purchased the power adaptor (the one that you put into mains), took out the batteries and powered up the camera. I declined to set up date/time and finally was able to access the camera. Hope this helps.