8 AA NiMH Rechargeable Batteries with New Advanced HYBRID Technology - Holds charge 4 Times longer. Replaces all nimh batteries, & made for use with CANON PowerShot A560 A570 IS A610 A620 A630 A640 A700 A710 IS S1 IS S2 IS S3 IS Digital Camera

Why is the Hybrid AA battery better? The Hybrid AA Battery is the next step in battery evolution. Original Alkaline batteries could only be used once and had to be thrown away. Bad for the environment, and bad for your wallet. Why throw money away? Nimh Rechargeable batteries were the solution, they could be used over and over again, but they had to be charged right out of the package, and would slowly drain even when not being used. If left sitting for a few months after being charged it would drain completely. The latest and greatest battery technological improvement, the Hybrid AA, overcomes these limitations by being ready to use right out of the package and holding it's charge up to four times as long. You can charge your batteries and they will be ready to go when you need them, no more charging immediately before use. *These batteries will work with any device that uses AA batteries. Place them in your Emergency/disaster kit and they will be ready when you need them or simply use them daily for all your electronic devices
Customer Review: LOVE EM!
These are probably one of the best things to come along with respect to rechargeable batteries. I'm a big user of batteries and have not been thrilled with how fast most NiMh rechargeables lose their strength and capacity to hold a charge. The Rayovac Hybrids may cost more but they are well worth the price. Charge them up, toss them in a drawer for three or four months, throw em' in a digital camera and they're like new batteries.
Customer Review: My 6-month Rayovac Hybrid honeymoon is over...
I bought 2 sets of these batteries for my Canon PowerShot A630 back in January 2008, and everything was fine until a few weeks ago (late July 2008), when I was unpleasantly surprised to see my camera's "low battery" warning light coming on much sooner than usual for these particular batteries. Given that I've been using two sets of these batteries interchangeably (I marked them so that I could tell them apart), I'd estimate that each set has only been recharged around a dozen times. I've been using my Energizer "slow" charger all along, and I've noticed lately that the batteries seem to be getting quite warm -- I'm assuming that's a sign of trouble... Go figure... After a terrible experience with Energizer non-hybrid 2500mAH batteries last year, I'm beginning to lose hope in rechargeables...