Batmax4Packs NP-BX1 Battery (1600mAh) and LCD Dual USB Charger for Sony NP BX1/M8, Cyber-Shot DSC-HX80, RX1, RX1R, RX100, RX1RII, H400, HX300, HX50V, HX90V, WX300, WX350, HDR-AS10 Cameras

I mean, at this price, you can be in the field on a shoot and know that you have more than you ever need.I timed these and the run my small CX 405 for 1.5 hrs. So this Batmax 4-pack will give you 6 hrs of power.Add that to the batt(s) you already have and you can rest easy and focus on the footage rather than the batt level indicator. You know you want 'em! And the charger will charge 2 at a time. Unbelievable price.

This package fits the bill and the price is right. I compared the battery life with the original Sony battery in my RX100 M7 and the run time was very similar. The ability to charge two batteries at the same time is very important to me when I travel. I use a USB power bank to charge batteries in the field if they run low. Love the plastic cases that are included.

Live these, they last long and the charger is a pleasure to use

I’ve depleted three of the four batteries so far, and I am pleased with the results for the price. Each took about three hours to fully charge using a 1V charging outlet. I chose the slower method as not to overtax the batteries on their initial charge. I’m sure I could use the higher voltage outlet next time. Below are the discharge results using the Sony MV1 camera:Battery 1 - 2hr. 20min. - Video, internal mics.Battery 2 - 2hr. 13min. - Video, external mic.Battery 3 - 2hr 40min. - Video, internal mics.Battery 4 - 3hr. + - Audio only...battery still has charge after 3hr.While not as good as a genuine Sony, the fact that you have four batteries for about the same cost as one original is fantastic. There is also a wide margin for how long the batteries seem to last under what conditions. I can’t account for longevity, obviously, but so far I have gotten a LOT of use. My next step is to get a capture card to use this camera for streaming and video podcasting.For the price, I can’t complain. I could have spent more and gotten a genuine replacement and only added 3.5hr to my runtime, so this, so far, has been a pretty good deal. Haha

I've been using these for a year now, pretty heavily, with no problem. I don't notice any difference in battery life from the original Sony battery, nor have I seen any fall-off in battery life with repeated use. The charger works fine, even with the Sony battery, and being able to charge two at once from any USB power supply, especially in the car, is very convenient.

Fit like a charm in my Sony camera. As a fire inspector I can burn through batteries and this was a economical choice over buying more from Sony. I think they might actually last longer between charges although I haven’t down a side by side comparison with a timer. Buy them, you won’t be disappointed.

Purchased this item for my Sony HX400V and one of the four batteries was dead on arrival. Actually purchased this pack to use multiple batteries while shooting video of my daughters wedding. Hopefully I will be able to shoot the wedding with only the three, however I hope that the seller will make this right by reaching out and sending me another battery prior to the wedding.

I use my Sony Camcorder every weekend for up to four hours at a time. The battery supplied just doesn't last that long.So, I needed multiple batteries to switch out at intervals and an easy way of charging them up quickly.This does the trick !!!