This site exists to help you identify and avoid counterfeit NP-FW50 batteries. It contains
gallery of both genuine and fake batteries. It also allows to decode serial number of your
NP-FW50 battery to check manufacture date and additionally it will check if serial number
matches known schemes of genuine Sony batteries.
All informatiions presented on this site are based on analysis of various versions and copies
of NP-FW50 batteries (both, genuine Sony and counterfeits claiming to be Sony).
Author of this page is not and may not be responsible for inavlid or inproper identification
of batteries. To be 100% sure that your battery is genuine please contact Sony support and
remember to buy only from trusted sellers and official distributors.
Serial numbers entered in form below are not stored in any form.
Tips and hints for identifying fakes
Genuine Sony NP-FW50 battery variants
Fake Sony NP-FW50 battery variants
If you have Sony NP-FW50 battery (either genuine or fake) which is not listed in above
galleries please take a photos of upper and bottom side of battery and any sticker, holograms
or other markings that may help in identification. Please send that photos to me so I can add
them to this site. You will find contact info on bottom of this page.
If possible please include additional informations like if battery came with camera or was it
bought separately. If bought separately then where, if came with camera then what was camera
model, when it was bought (year). If you want you can include any comments you want that can
be helpful in identifying genuine/fake batteries and enhancing serial number checks.
If you have read data matrix codes of your batteries and they do not match with serial numbers
(see tips and hints for details), please send me these serial numbers and values of data matrixes
so I can add them to this site.
You can find your NP-FW50 battery serial number in bottom right under sticker. It always has 2 parts: 5 characters
long first part followed by 3 characters long second part.
Some other Sony batteries are using same serial number encoding, for example NP-FM500H. Some also have only first
part of serial number. You may check them with this form too.
If you need to contact me about this site or you think that presented information
is not correct or incomplete please send an e-mail to
If this page is useful for you, you may help keeping it up to date.