Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
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These batteries have extended the operations of my Intova ISS 4000 Underwater Slave Flash by about 30%. I can almost make it through 3 dives with constant use with these batteries. If I turn the flash down to 75% duty cycle, I can make it through 3 hour long dives and shutter-bugging.
This Ni-MH battery is rated at 2900 mAh capacity. They actually are closer the 2000 mAh. I used a Powerx Ni-MH charger to initailze these batteries. Powerx is rated as one of the best chargers for this type of battery.
After charging all 8 batteries using the same charger, some batteries only had half the charge of the others, so less than 2000 mAh, when they should all have 2900 mAh. They're crap. Further, to tell which ones are crap, you have to test them individually. I didn't have a meter, so I shot video to see how long these AccuPower battieries would last. The only reason they get 2 stars instead of 1 is because one pair of batteries shot 90 minutes of video, which is twice what I get with the 2300 mAh Energizer batteries I was using before. But with another pair of these AccuPower batteries, I only got 40 minutes of video. Don't bother with these.
Since returning this product, I've tried Sanyo's eneloop 1,900 mAh AA batteries. INCREDIBLE! Shot 120 minutes of video on a single charge (compared to 90 or 40 min with the AccuPower). Go for the Sanyo product if you want long lasting rechargeable batteries.
I bought these for my Kodak digital camera that seems to be a battery hog. What little I have used them they seem to be working fine. If I need more rechargeable AA batteries I would consider buying these again.
The product is excellent, the device is so useful that really looks like a tablet. With expansion memory can be used as a data logger, music and videos.
I've been refreshing these batteries for a couple weeks now w/ a battery analyzer (BT-C2000) and I can't even get these to 2700mAh. I'm sorry, but "up to 2900mAh" claim for a battery that can't reach 2700mAh is false advertising. The batteries work fine, but so does any other battery that costs this much. Lame. 2 stars.