GLSmith wrote:
Battery "swelling"...the old Ni-Cad batteries were very prone to this, lithium less o, but still occurs. Rule of thumb, place the battery on a flat surface a spin it...If it doesnt spin, battery is good, if it spins, the battery is towards end of life. Unsure if your camera has a place to check battery in your menu, but my Nikons do & will show not only current charge, but lifer of battery on a grade of 1-4 4 being new or best
I found that Lithium is more likely to swell than NiCad.