As I have mentioned though, our desire for longer battery life outweighs the extra cost we need to spend on the Sony batteries. Yes it means we have to pay a bit more but the extra latitude that affords us is worth it in our opinion. Battery life was massively improved when Sony released the A9 with the new NP-FZ100. Since then this has become the new battery for all modern Sony mirrorless cameras.

One option I just thought of is to use the original Sony battery you got with the camera and have one PowerExtra as the second battery. That could be a happy compromise if you really want to save money. For Wedding Videographers I think it is clear that the original Sony battery is without a doubt superior. Which is as it should be given it does cost 2x more than the Powerextra. Also, it has been confirmed that counterfeits with a decreased battery capacity compared to the genuine batteries are being distributed to the market. The use of counterfeit batteries implies a fire or explosion hazard.

It has been confirmed that when attached and used with the camera, counterfeit batteries can lead to issues such as:

Ultimately I think what it boils down to is how much are you willing to spend to save swapping batteries? Clearly the Sony is the superior battery here. So if you want to have minimum battery changes, the least amount of batteries to charge before a wedding then your choice is clear. On the other hand, if you want to save money and don't mind changing batteries more often, then the Powerextra batteries might suit your needs and offer you value for money. Using the Powerextra, I would clearly have to swap batteries earlier. I'd be nervously looking at the meter and fretting during groups and couples portraits about the remaining capacity. For a full day of filming, we used to average out at going through three NP-FZ100's per Sony A7iii. With 25% less power per battery, we'd have to now use 4 batteries. An extra change on paper. But the shorter the battery life is, the more I would be stressing about the time to change.This change of mind return policy is in addition to, and does not affect your rights under the Australian Consumer Law including any rights you may have in respect of faulty items. This change of mind return policy is in addition to, and does not affect your rights under the Australian Consumer Law including any rights you may have in respect of faulty items. To return faulty items see our Returning Faulty Items policy. The Powerextra batteries perform adequately. But is 'OK' good enough for you when you are working in a high pressure environment such as a wedding?