Summary: I am using Sony NP-FM55H Battery with my sony A100k Camera. I don't have any issue at all. I don't know whey for some users it got stuck inside the camera. The battery is perfectly fit for the Camera. The one who wrote that it stuck in the camera, Are they sure they bought Genuine NP-FM55H Sony Battery only. How can same battery stuck on some cameras but not all. I am surprised. For me I don't have any issue at all. The battery is not even tight at all.
Summary: Given the problems that other reviewers have reported with this battery jamming in the camera, it should be avoided. Sony appears to have replaced it with the NP-FM500H. The FM500H is compatible with the Sony A100, although the A100 can't display the InfoLithium information. The new battery has the additional advantage of being less expensive.
Summary: I purchased the Sony NP-FM55H Lithium-Ion Rechargeable battery for my Alpha Digital SLR Sony Camera as a backup battery. The cheapest I could find it locally was $[...], so I was very pleased to find it for $[...]-no shipping charge. I always go to Amazon.com first to find what I'm looking for.
Summary: Amazon has to look into the Sony Brand Battery NP-FM55H There is a major problem with some these batteries they do fit into the camera. If one forces it into the A-100 DSLR you can not get it out. The Camera has to be returned to Sony. Someone has to get to the bottom of this Sony Problem. You should stop sales on the Battery until Sony corrects the Problem and removes the defective uunits from the market.
Summary: Sony NP-FM55H Lithium-Ion Rechargeable Battery for Sony Alpha Digital SLR Camera This battery is amazing, even better then the one that came with the camera. This package is Infolithion and displays more information when used in the camera.
Summary: I bought this item a few weeks back. They seem to work just fine, however when plugged into the charger the charging light never goes off! With the camera's original battery the light turns green, this one just acts like it keeps charging. not sure if that's a problem, the batteries seem to work just fine.
Summary: You can buy generic batteries for a lot cheaper than this original ... but can you rely on them as much as you can rely on a Sony battery? Keep in mind that if your generic battery leaks, or explodes, your warranty will be cancelled because you were not using the recommended Sony battery! These D-SLR cameras are not cheap ... so why settle for, and rely on, a cheap generic battery?!