i bought this battery so i have two of them for work, and it seems to be enough. I would have a third one just in case it's a long workday, but it should be ok to charge the first one as you use the second and keep going.

These batteries are outstanding. Plenty of power and hold a charge for a long time. I use them to power my Sony A7R3, and they are great. As was the usual service from Crutchfield. Great job again folks.

Power to spare

None

It's true, these batteries are expensive but you do get a lot for your money. Not only do you get the latest in battery technology you also have the reassurance of knowing it's the genuine article. Think of it like this, you only need two of these to cover you on a shoot.

I bought this as a 2nd battery for my A7iii, as a backup. And with these two batteries I can easily go on shooting all day with a very substantial amount of video too, without any stress about battery life. Definitely a must buy. Sony's best battery.

This battery last 2 hours filming if not a little more, it's well built and I trust it, it gets 1 mark less as it's £20 too expensive in my opinion but can't fault the quality of the product

Bought this to go with an A7R iii and lenses. Battery life almost twice as good as my existing A7S and I doubt I will need to have two or three spares - one spare should be sufficient.

God sent!. This is definitely the one of Sony best improvement. Able to use for the whole day shoot (over 1200 shots) and still have 33% left in usage.

Coming from an A6500, I am very impressed by the performances of this new battery. I can video shoot an entire day with only two of these!