Sony NPFW50 Battery

Product Information

Opening the RAVPower and Neewer batteries did not reveal any information on the cells used. Internally, the battery protection boards appear to be the same. I would not be surprised if they were made at the same factory. The Best Third-Party NP-FW50 Battery Is… If you’re cheap like me, you don’t want to pay the high-price for an OEM Sony NP-FW50 battery. The price isn’t terrible if you only need 1 extra battery. Unfortunately, one of the problems with the Sony A7 is the short battery life. Aside from the voltage curve, are there other factors that might affect the performance / operational stability of a camera when using third-party batteries? Or is camera performance / stability based entirely on the voltage curve?

RAVPower or Neewer are the best batteries. While they don’t meet their labeled capacity, they are close. What they do have is higher tested capacities than the labeled 1020mAh of a genuine Sony battery. Besides the Sony battery, I bought 3 other brands. Only one of the batteries, number 7, was unable to power the camera for more than a few minutes thus bad. Battery 2 and 5 were functional though with poor capacity. Two batteries, number 5 and 6 initially seemed bad in that they held little capacity after seemingly being charged until I had performed a couple full discharge and charge cycles, after which they have been performing ok though with weak capacity. Thus it may be possible to recover a faulty battery by fully discharging it and then recharging. The spare batteries I bought in 2014, numbers 2 through 6 had lower capacity. Batteries bought in 2015, numbers 8 through 15 from DSTE have more capacity than the Sony. I bought 4 more from DSTE after starting the test, numbers 16 through 19 that show modestly greater capacity than identical types with a couple year's use. Thus at least with that brand, it does not show significant aging. a) the product you are asking Sony to price match must be identical to the one being sold by Sony, including matching brand, model number and colour (“Qualifying Product”); I made the following report 6 months ago and am just now posting the information. Also have an Excel spreadsheet and additional images beyond the one graph below.The TEC-06 is a USB powered battery capacity tester. A test load can be placed on a battery. The measured capacity is displayed on the screen when the battery is fully drained. My Sony A7 gets about 2 hours of life out of a battery. A 500mA load was used because it would drain the cells in approximately 2 hours.

If Sony approves the customer’s price match request the below terms apply. If Sony does not approve the customer’s price match request the customer will be informed of this. Terms that apply where price match is approved: A micro USB cable is required and not included. Charging requires 5V 2.1A USB power. USB chargers that powerful are not common. Most chargers will be 1A or less. Using a less powerful charger will still work, but charging will take longer than it would with a more powerful charger. Is it possible that the voltage monitor in the a6000 might "misread" the voltage of a third party battery, and thus drain the battery past the normal cutoff point (i.e., Battery Exhausted) that is monitored in the a6000? (I guess anything is "possible" so maybe I should ask if it is somewhat likely).After seeing that it worked, I took it apart. There’s not much inside. The case is either glued or plastic welded together. I would not recommend disassembling the charger. Energy stored in the battery is turned in to heat. The heat sink and fan are there to dissipate that heat. Testing Methodology If you need a USB NP-FW50 charger, this one charges batteries. I am going to continue to use it. If you want an adapter that plugs into an outlet, get a DigiPower TC-U450. Sony Cameras That Use NP-FW50 Batteries