FirstPower 2-Pack NB-13L Battery and Dual USB Charger Compatible with Canon PowerShot G7 X Mark II, G7 X, G1 X Mark III, G5 X, G5X Mark II, G9 X, G9 X Mark II, SX620 HS, SX720 HS, SX730 HS, SX740 HS

Their working for what I needed them for. I had purchased a Canon SX620 camera a few weeks ago and since it only comes with 1 battery I decided to purchased some back up batteries for when were out. Since then I returned that camera and purchased the upper camera the SX740 and they hold the same size batteries.The cost of these are in line of others but these are larger size than the camera battery that comes with the camera which is a 3.7V 1250 mAh battery that is Li-ion.I ordered these after looking a while and seen that they were larger size mAh Li-ion and the price wasn't anymore than for ones that were in the 1300 mAh range so I went ahead with this size knowing these will last longer when using. I received them quickly from Amazon 2 days. I didn't have to charge them long since I guess they were somewhat already charged from the company I guess so they charged right up and I like they say their 3.7V 1700mAh and Li-ion. I don't have a tester to see if their that large or not but even if their not but work for what I want them to do I'm ok with that. But one thing I didn't notice till after ordering or I guess I should say is I didn't look to see that it didn't come with a car charger. To me no deal breaker but I guess some people will want that but hey I have 3 batteries and I think that would be more than enough for an outing and I would think a whole weekend without having to recharge 3 of them, I like taking pictures and the Canon book shows that the one battery can take 300 pictures on one battery and it's a 1250mAh battery and these are 1700mAh so I would think it would shoot 400 picture for sure so the three of them you could shoot close to a 1000 pictures, yeah a lot I don't take that many at once but some might.Anyway for the price the extra mAh size battery you get along with a charger and USB cable your doing good I think pretty cheap really for making sure you have the power to shoot when you need to. Good buy really. Thanks

This battery kit works really well with my Canon G7. It has a longer battery life than the one that comes with the camera. I was planning to get an original Canon battery. But the price on this one was too good to pass up. Highly recommend it.

Perfect charger and pair of new batteries they charged up quickly I was ready for use on my 720 almost as soon as they arrived. Completely satisfied

Actually works! I’ve had it for about a year and its lasted and held up very well

So the first battery worked fine. No issues. The second battery though caused a prompt on my camera asking if the battery was a cannon brand battery. First I said no, which by doing so made the camera not show the battery life, even though the first one did. Then I changed it to say it was cannon brand and it said the battery may be corrupted. Obviously I don't think it is, likely it's because it's not a cannon battery and I said it was. But not sure why the first one worked with no issues and showed the battery life, and the second one isn't. So far though other than not showing it's life, the battery is working fine.

Good price right time to delivery.

We were on a two-week overseas trip, taking tons of photos with two Canon SX740s, and the charger allowed us to have fresh batteries at the start of every day. Even the original Canon batteries get used up in a hurry when you're taking video and hundreds of photos, and frequently turning the camera off and on. The FirstPower charger charged its own batteries and the original Canon batteries successfully, and the batteries were accepted without warnings or problems by the SX740s. The SX740s were able to detect and report the battery level for the FirstPower batteries. I didn't notice any significant difference between the Canon and FirstPower batteries capacity. We were able to recharge batteries using our Ceptics plug adapter at the hotel, using the tour bus's USB ports, and from a power brick, overcoming the limitation of the OEM battery charger. Battery fit in the charger is snug, but it didn't cause any problems. The charger gets its power from a USB C connection, which allows for using an alternative, longer cable when necessary.

Works well with my canon g7x mark ii