Hi! I fully recharge my AA batteries in a new charger, keep them in camera case and when I put them in the camera, they barely take 10 shots before dying down! Threse are hoigh capacity batteries, 2300-2700mAh – I’m just confused!
Is it possible that my camera (about 4 years old now) has somehow increased its hunger for batteries?
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4 Responses to “Why Does A Rechargeable Nimh Battery Lose Charge In A Digital Camera?”
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Ni-MH batteries lose charge, or self-discharge, at a rate of one to two percent per day, whether they are installed in the camera or not. This means that if a battery is fully charged, after several weeks, the battery will be low or dead even if it was not installed in the camera or if it was installed in the camera but no pictures were taken. Ni-MH batteries are best for those who use the camera frequently and recharge often.
Ok, research the memory used in NiMH batteries. If you charge your batteries before they are fully dead, or you pull them off the charger before they are fully charged, the batteries will set the amount of charge into memory, thus if you stop charging at 80%, then your batteries will show a full charge at 80% next time.
Your best bet is lithium, although, I haven’t seen rechargeable AA lithium cells yet.
the reason for this is 99% of digital cameras have got a clock and/or a date feature and also to store your settings so over time it will eventually run down your batteries. i got a kodak c613 camera and that also does the same.
depending on how old your batteries are, you might want to think about replacing them and also a major factor in battery drain too is caused by over charging them.
You did not say how long they were kept in the camera case. Ordinary NiMH batteries do lose their charge over time even when not used. The Sanyo Eneloop NiMH are supposed to keep their charge better, although I haven’t tried them. In your camera uses 2 AA cells, see if you can replace them with Lithium CR-V3 cell. They will keep the charge much longer.