Most helpful critical review
19 of 19 people found the following review helpful
Fair given the price (one is now dead)
on January 7, 2013
UPDATE 1/31/14: I knocked these down from 3 to 2 stars now. One of the pair has died after both (and the 2 STKs) had sat discharged for a few months after the summer was over. Yes, I know that's not good for battery health, but they should still easily last over a year. It won't take a charge from either the Canon or Wasabi chargers.
UPDATE 8/31/14: I finally redid a test. I should note that this time I was running CHDK firmware hack and IS was on (though the camera was not moving). I also was taking video in 1280x720 (I believe it must have been low res before as I don't recall having to restart so often once the 4 GB file limit is reached.) Anyway, I must say I was quite surprised by the results. The remaining Wasabi recorded 54 minutes, which was better than my perception of its current ability, one STK recorded 71 minutes and the other did 78 minutes. The OEM did 84 (this one was also not freshly charged - it had been sitting for several weeks!). I really would have expected after 2 years of usage for the capacity to have dropped noticeably, but it seems at least the STK and OEM are performing near as well as their first charge. I've read it takes a few charges to reach full potential of a Li-ion battery, but I can't imagine increasing that much. I'm not a heavy user except during my trips but these were great followup results as far as I'm concerned.
This Wasabi battery is clearly not as good as the OEM, but acceptable for the package deal you get here (though I have not tested how well the charger compares to OEM). I will note the OEM charger does not have car or international plug adapters though.
My rating is just for the batteries. I also purchased the SterlingTek version since those were highly regarded at dpreview as well as an S100. Once the S100 arrived, I charged the Wasabi, STK and OEM in the OEM charger, which seems to charge to the 4.2V maximum. I did not time how long that took or remove them as soon as the light turned green but also did not let them sit in the charger for more than an hour extra. Then I shot continuous video until each died, deleting the files after each one. The Wasabi recorded 60 minutes (I only tested one of the pair), the STK 78 minutes and the OEM 84 minutes. Based on other reviews I've read, I should also note the Wasabi was the lightest battery at 0.66 oz, STK was 0.72 oz and the OEM 0.79 oz. so that is somewhat an indicator of the performance you could expect from a cell.
I will hopefully remember to update this review by this summer and alter the rating if needed. As of this "fresh from the box" test, I'd definitely purchase more STK even though you could get two Wasabi for nearly the same price. I don't want to have to carry a large number of spares into the backcountry with me (or wait longer to recharge so many for the next leg of my trips).