Gosh, that's a new one on me. I used to have rechargables but stopped using them because when they ran down they did so in a matter of seconds instead of gradually like regular batteries. Maybe they've overcome that problem.

Mine fit in anything.

I use Energizer rechargeables in my digital camera. I also use them in flashlights, radios, etc. I LOVE them. I have 3 sets of 4 batteries.

My batteries say 2500 - I think the higher the number - the longer the charge stays, but I am not sure on that.

I use 4 at a time in my digital camera and I take LOTS of pictures. They can last for a couple weeks and hundreds of pictures/videos in my camera.

I always keep one set charged.

I use a "slow charger". It takes 8 hours to charge the batteries, but you can get fast chargers also.

I recommend the Energizer Rechargeables to everyone.

I think 4 batteries and the charger cost around $15. It has paid for itself many times over. I

I also have a set of AAA's. My charger has a flip down in it that allows me to charge this size also. I use those in my MP3 player.

Hey Rita!
If they don't fit in your devices, I would ask for a refund or exchange. My rechargeables (and I use a LOT) are exactly the same size as regular AA. I am using Promasters NiMH, they do both AAA & AA's. If they are not the NiMH, maybe that could be the difference as some devices say don't use this type or that (alkaline or lithium?).
And don't buy cheap!
;~)

I have rechargeables but they seem to get weaker with age. I have had mine over 10 years. I am considering getting rid of them and using only new alkaline batteries.

Thanks, all!
Val, I will read the papers that came with the batteries (if I can find them...) and definitely that came with the device they don't fit into. It is mainly the game camera we use to take pictures at the deer feeder, which was the main reason we bought the rechargeable kind.

I love my Moultrie 4mg trailcam. We actually got photos of a thief that came on the farm and stole 3 derelict cars (to sell for scrap)!