Fast but Not Long
True, this battery charges in 15 minutes with the Rayovac charger, but it will be self-drained in two weeks if left unused after a full charge.  I used the AAA battery in my travel alarm clock and it lasted eight months before it required a recharge.  The bottom line is charge the battery only when you have an imminent application.  I have also used SONY 900mah NiMH AAA rechargeable batteries.  The SONY battery also self drains but will retain power for around 1 month if left unused after a full charge.  However, the SONY battery will take hours to get a full charge.  If you like battery that can retain power longer, try the new hybrid battery by Sanyo, Rayovac, and SONY.  These are available at prices comparable to the older NiMh rechargeable battery.
Rating: 4 stars