Canon BP511A 1390mAh Lithium Ion Battery Pack for Select Digital Cameras and Camcorders

I have been in so many situations where I couldn't use my expensive camera because I didn't have an extra battery, do yourself a favor and get one.

I have been professionally using my Canon 30D for over 1 1/2 years now, and the battery still works great! I have no problems shooting an entire wedding with it. I just purchased a second BP-511A, simply because I know that it's getting older and I needed a backup. It is really worth it to buy the Canon brand- its more than just a name when it comes to this battery.

I bought this battery as a backup of my existing battery which I am using from last 2 years without any problem. These are excellent battery and last for long time.

May be a little expensive but remember when we used to buy film and process? If this is the only incremental cost to taking pictures, and I have taken thousands in the 4+ years I had the original before it went out, I figure it is best to just get another original Canon.

Bought an off-brand for my camcorder and wished I hadn't. Only lasted 1 year.

What can I say, it's a battery, but I guess even batteries have issues. This one works great - I use it in my Canon 5d.