Sony was the source of a number of recalls for defective batteries in laptops and cellphones and might have been the source of the Nikon recalled batteries a bit over a year ago. The division has been up for sales since last summer but the government wants Nissan to buy it.
As battery companies go, it is not a major player with less than $2 Billion in annual sales, some of the 3rd party makers are bigger and have more success in developing that market and technologies that Sony has not had the money to spare to compete with. Sony is going through a major downsize and is shedding all but its core consumer electronics business. The CEO has stated that they are going to concentrate on mobile devices, digital imaging and gaming, and possibly, medical equipment. There has been a lot of talk about Sony Semiconductors being on the block also. They have already closed dozens of plants and sold off divisions such as its chemical company. The semiconductor division is rumored to be up for sale. If it happens might be why Nikon is getting second sources for sensors. Given its checkered history and sale-at-a-loss attempts, Sony batteries might be anything but the best option. Rather than internet rumors, I prefer to rely on my own testing and as a result I have been quite happy with my additional charge life from the Delkin batteries at less that $25. I would not buy any eBay specials or even Amazon unless it came from Amazon stock and not from its associate retailers. Stan St Petersburg Russia