My Olympus FE-310 has battery problems!

I have the same model and I sort of took a page out of Solution #2.
I don't have electronic technician experience so I took one main insight: The Poor Design of the Conduction in the bottom cover.
Here's what I did: I took some Copper Wire (mine came from the wire you use to hang paintings) and some Aluminum Foil.
Next I wrapped the Copper Wire with the Foil. The piece was roughly slightly bigger than 1/2 of a Postage Stamp.
Then I inserted this metal square over the batteries and closed the cover.
I found that I could take more shots without the camera saying Battery Empty.
See if this works. So far it's touchy but it's been taking more photos than before.

I have had the same issue when using rechargeable batteries. I find that if I use Duracell Procell, or some other "high capacity" battery the problem is resolved.

I have an FE-310, and had nothing but problems with battery life also. I tried a number of different branded rechargables with no success. I'm currently using the SANYO Eneloop batteries. Being an electronics technician by trade, it got the better of me, so I worked out the problem. The problem is in the battery closing flap on the bottom, it has poor electrical conduction to the batteries, and the voltage from the 2 batteries in series drops from 2.9V to 1.7V on turnon as a result. The camera seems to use a lot of current on turnon and on some other functions like taking a photo. The fix is to disassemble the unit an install a small capacitor across the battery terminals. I used a surface mount 2.2 uF 10V capacitor, which just fit between the two batteries up against the front case. I can now get over 500 shots without getting the red battery symbol. It's a bit tricky, but most technicians should be able to do it.

Mine does the same all the time. I usually turn it off, take out the batteries.. put them back in and turn it on again.. it used to work that way but recently after my rechargeable batteries got stolen i started using regular ones.. now everytime i put in batteries rechargeable or not.. it doesnt even turn on..
i checked the manual of the camera and in the batteries section it recommends alkaline batteries and panasonic oxyride batteries

i searched up oxyride batteries and learned that they are double the power of regular alkaline rechargeable batteries..ive read customer reviews on them and everyone says that oxyride batteries are best for cameras like the FE 310 that die out quickly.. i know that best buy and future shop dont have them.. appearantly target and walgreens do.. i havent checked yet but if they work ill let you know...

in the meantime, search them up, see reviews and learn for yourself what theyre like

once again theyre the Panasonic Oxyride batteries