When it comes to using battery grips on the cameras, does anyone know of issues regarding the camera not displaying the correct battery life?  A friend told me that he had an incident where his camera was displaying full battery life while he was shooting and then all of a sudden, the camera says the battery needs to be charged. 

Anyone have any info on this?

Yep, JosephLara has it spot on. My aftermarket grip has cheap aftermarket batteries. They last nice and long, but the last few minutes is when it'll signal anything lower than full. I never get near that level, and carry lots of spares. There are some cheaper batteries that'll work perfectly- I'd suggest checking Amazon reviews to clarify what ones are better.

Well...you have the exact same battery and battery grip as I do. I have no problems with them

I've noticed that the battery monitor can go from full to just about dead pretty quick, and I have a Canon brand grip.  It's doesn't seem to draw down slowly and gradually.

But never an issue for me.  I always have two extra charged batteries on hand, and if not, I have the slot that will take AA's just in case.

most grips have a 2nd battery tray that accept AA batteries.

My cheap batteries last a long time, but do tend to die all-of-a-sudden....and I don't use a grip. No matter because I always several charged, and I kind of monitor the use anyway and will swap them out before they die.

I was actually just wondering about this topic myself, funny enough. Just yesterday I got my T2i with a Vello grip and two Pearstone batteries, and I've been shooting like crazy since, and the batteries still show fully charged. I've been shooting with them straight from the package, I haven't even charged them yet. I am wondering if/when they will start to show less than full, or if they will just up and die on me. I estimate I've taken somewhere around 400 pictures so far.

So what your saying is that your were so excited with your brand new camera that you couldn't even wait to charge the batteries!  I love it!



Like I said above, my battery grip seems to go from full to dead with little warning - not gradually.  Bottom line, if the battery meter changes down to half full, I just change out the batteries then.  And even if I do go dead, I always have backups, and I also have the tray that will take AA's as a second backup.

That being said, using two batteries in a grip definitely makes the camera last forever!

Gotta love that enthusiasm!
I'm glad I'm not the only one that had this problem. It seemed that I was going to shoot forever on a full charge of dual batteries in a grip but then it went from full to dead in one shooting. I had a single spare so I removed the grip and made into a stock camera but that gave me tons of time to charge the duals up. It sounds like something I will need to keep an eye on but as long as I have a spare, it won't be the end of the world.
Btw, GouletPens; congrats on the new gear!
(is anyone else going to ask him why he has taken over 400 pics and we haven't seen any yet?) 

Now I feel like I should buy a third battery, lol!

Yes,You.Should.