Not for a T4i with battery pack
921075
This might have worked, but I keep my battery pack on my t4i all the time. It was too shallow for my camera setup.

I'm going with a kata or LowePro.
236978
This does not fit my sj4000 camera. It goes in very tight and then it is virtually imposible to get out again! I had to use a nailfile to get it out and completely damaged the battery... Not sure how the other folks gave 5 stars... Perhaps they havn't tried to remove the battery yet.
607737
These are probably not 1900mAh batteries.
The first thing I noticed when I received them is how small they are. They are 15mm high.
My 2400mAh Lenmar are 45mm high. See picture attached.
My original 1800mAh was probably 30mm high.
So I tested them: I first charged both of them with the charger, and then charged my 2400mAh with the same charger.
They will run my Canon HV40 (a tape video recorder, they use a lot of juice) for 45mm non-stop.
My 2400mAh did three times one hour, rewinding included, and it was not dead yet, it may have done another 30minutes, but I think I had made my case: this is false advertising. They are probably not even 800mAh.
For a camera like mine it is pretty much useless: I'll get maybe 5-10min of recording in real life application (lots of idling between shots).
If you have a low power picture camera, it may be ok as a backup, but no more.

The charger however looks ok, and I mostly got this lot for the charger, thinking that the extra batteries would be useful backup.
It is a very light and somewhat flimsy travel charger (it does not feel heavy duty at all), and it comes with a 12V car adapter that may come useful to some. However, there is no power cord to the wall socket: just tiny little prongs that fold and stick out when needed: if you do not have access to a flat outlet, it will not work.
I am now considering returning the whole thing because I don't like false advertising, and I can get what may be a better charger, for less money.
1423556
Attached it to my T5... attached it to camera, not too tight, it was wiggling around on the base so I tightened it a little more and it broke... (the screw that you use to mount the camera) NOW I cannot get my camera off of it... what is worse is that I was just trying it on and didn't put my memory card back in...  So... I cant do ANYTHING with it...

Can someone from Amazon contact me please?
2242653
Bummer. I guess I missed this before ordering, so it is my fault... However, still 1 star off since it is not universally compatible.

This comes with custom battery packs.

The bad thing is that you cannot charge any existing/regular packs, as they do not have the metal prongs outside, as the custom packs have, to make contact with the charger base.
2068210
I wish I had read more of the reviews before purchasing.  I scanned and saw some good reviews, however, those must have been for models other than the T2i.  I cannot get it to fire with every click.  I cannot fire at all from the side of the camera opposite the receptor/receiver.  I'm disappointed with the product.
2536251
These batteries are crap.  I have a Canon Rebel T1i.  For 18 months I have been using one Canon battery and two Vivitars.  All will let me take a minimum of 1000 pics.  One of the Maximal Power batteries only holds a charge for about 300 pics and the other goes to half charge after about 5 photos and then starts to flash like it's almost empty after just a few more.  So it basically doesn't hold a charge at all.  I wasted $20 and I still need batteries.  I'm not a happy camper.
2731449
Tried using this on my Sony A7R camera. Too many intermittent "incompatible battery" errors, making the battery grip totally unreliable. Returning this...
1127585
Very similar to the i4 except with a display. I noticed the i4 charges my batteries better, but either way it still takes forever to charge using this charger.
2889687
One of the reasons I love my G4 is the replaceable battery.  When I first got mine I purchased 2 external charging cradles so I can always have a spare battery or 2 charged and ready to go.  I purchased this in the hopes of having another battery to put into my rotation.  Sadly, it was not to be.  This battery would not fit in get OEM external charger.  I purchased the battery only, so the only way I have to use this is to charge it in the phone.  When I use it like that it seems on par with the batteries from LG.  I can't fault the battery itself too much as it works as a battery.  I was just disappointed it didn't fit in my chargers.

I received this product at a discount in exchange for an honest review.
387478
I bought a compatible rechargeable battery pack that suit my camera, but it doesn't, a total waste of tiem and money
715962
Product is fine BUT BE SURE YOU ORDER the right one for the right camera!  This is NOT the correct power unit if your model has an i after it such as T5i.
1318989
I got this as a gift for my backpacker/traveller son, largely because of its small size. Unfortunately, the Beijing Airport security seized it from him because the small battery doesn't indicate its capacity, and many airlines ban lithium-ion batteries with more than 2 grams of lithium or about 100 watt-hours of capacity.  Yes, this small battery is obviously WAY below that, but one doesn't argue with airport security personnel.
4903720
I only gave 3 star on this due to some troubled I encounter using this stuff, all the function working well but everytime  I used two batteries  at same time my T2i camera automatically shut off after a several minutes of shooting, I constantly on and off the camera assuming to work  it again but resulting on totally power shut down, but when I removed one of the battery then close the compartment, switch on the camera, it works again. I am soliciting ideas on how to solve this trouble of mine, so i can used two battery for longer shooting time.
1420832
Case too small to fit battery cover and phone.  Had to remove battery cover in order for case to fit.
4156296
The right thing I needed but unfortunately I had returned it because batteries are not allowed on passenger aircraft if not installed inside a device
1186263
My Canon S120 is a very tight fit in this case and I struggled to get the it in and close the zipper. I could of lived with that but a compact camera uses a very small battery and I usually need at least one spare. With this case there is no room to put an extra battery or even a sim card anywhere.

I ended up purchasing a AmazonBasics Medium Point and Shoot Camera Case. It's a black case and doesn't jump out at you and say here I am like the Case Logic magenta but the medium size case is a loose fit and has a second pocket that easily holds two extra batteries and a sim card.