Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't fall for it

I bought this battery a couple months ago for my Powershot S45 since it was so much cheaper than the real NB-2L. PLEASE! Do not make the same mistake. The first few uses were fine and it appeared to be a genuine equivalent. However, after about 10 uses, the battery life was completely sapped. It now takes just a few shots after a "full charge" before I hit the low battery indicator. Of course, my original Canon battery is still fine after many uses. I highly recommend sticking with the real thing.