3 of 3 people found the following review helpful
They simply don't last,
May 25, 2009 Allison M. Perkel "I drank what?" (Boston) - See all my reviews
This review is from: Rayovac Rechargeable NiMH Batteries 9V Size Carded 1 Pack (Health and Beauty)
I tend to be careful with my rechargeable batteries - I always try to discharge them fully and then charge them up to the top. Especially when they are new.
For Rayovacs, I've found that the first 30-40 recharges are great. Then the amount of time they last on a charge starts to rapidly fall off; falling off faster than a coder a few hours after her last pot of coffee.
While the 9 volts are slightly better than the AAs, slightly is the key word. I've gone through three of these batteries and its disappointing how consistent they are - after about 45-50 charges they are worthless. Do yourself a favor and look elsewhere for rechargeable 9 volt batteries
14 of 25 people found the following review helpful
Not For Smoke Detectors!!!,
February 21, 2006 Michael Carr (robbinsville, nj United States) - See all my reviews
This review is from: Rayovac Rechargeable NiMH Batteries 9V Size Carded 1 Pack (Health and Beauty)
Do not buy for a smoke detector!!! This should have been something listed on the Amazon.com product information.