Looking for extra batteries for T3i?

Several years ago, shortly after I purchased a used G5, I bought some batteries for it from this place:

http://www.calcellular.com/?gclid=CIbgvZThg7ECFc2A7QodMUE7Aw

That had to have been 4 years ago at least. They are still holding up. I’m not sure what I paid for them then, but the current price is $7.68. Given my luck with them when I recently purchased my T3i, I purchased 3 batteries for it (LP-E8) for $5.38 each. The charger was $12.88. Obviously given the short time I’ve had them, I can’t give an endorsement for them yet, but will be glad to provide updates after I have used them for a while. Just an aside - I also bought a battery for my cordless phone. It was $5.48 vs. $18.00 at Batteries Plus.