It is better than the Kodak OEM that came with my ZX3 Playsport. The battery indicator did not drop down from full to the next level down as fast with this battery than with the Kodak OEM. Probably because the Kodak battery simply had less "mah". These batteries came with about 1/2 to 3/4 charge already on them too. They fit fine in the camera. The best thing is it's 1400mah vs Kodaks 950/1000 or so. Even better is the price. TWO for under $7 including shipping! Since the Playsport vid cam uses a lot of power you need backups.

I bought this battery as an extra for my Kodak Zi8 pocket camcorder which came with a Kodak KLIC-7004 battery, 1000mAh, made in Japan. I tested both batteries twice with the camera recording at wide angle on a tripod at 720p/30fps, EIS stabilization off, LCD at medium brightness and no zooming.

The Kodak battery lasted for 103 minutes (1:43) and for 101 minutes (1:41) on the second test. This "Superior Quality" off-brand battery which shows 1300mAh (don't you believe it!) and no country of origin on the battery or box lasted for 77 minutes (1:17) and 73 minutes (1:13) on the second test. That's an average of about 73.5% full charge capacity of the off-brand battery versus the Kodak battery. The price of the bargain battery was very nice but the performance was quite sub-par. We'll see if it lasts very long (I have some doubts).

BTW, I got an amazing total of 339 minutes (5:39) of video from a SanDisk Ultra 15MB/s SDHC 8GB card at this recording level on the Kodak Zi8. Normal type recordings of course would take more memory card space but I was still impressed. I generally LOVE the Kodak Zi8, especially for the closeout price. The one big exception is that the EIS stabilization is mediocre (some noticeable shake handheld even w/EIS on). The lens angle at 1080p is equivalent to about 60mm on a 35mm camera (not wide at all, OK for tight shots w/superb resolution). The lens angle at 720p and WVGA about 45mm (much better but still not great). Consequently I shoot mainly in 720P or even WVGA for non-critical video. The 720P video quality is excellent when using a mini or full size tripod (very important for no shake). An add-on wide angle/macro lens is available for a great price. Very nice pocket video camera! More later in a full review.

I recorded the wall at 720p/60 with EIS and Face Detection ON and got 1:47:24 on the 1000mah OEM battery. With these on the same settings, I only got 1:06:39 even though it says 1300mah. As backups, you can't beat it for the price. But don't let the price cloud your judgement on the product. These last almost half as long as the OEM and is rated 300mah higher.