Battery Type: NiMh Binding: Electronics Brand: Sony Batteries EAN: 0008562010130 Label: Sony Batteries Legal Disclaimer: Warranty does not cover misuse of product. Manufacturer: Sony Batteries Model: NH-AA-B4K Publisher: Sony Batteries Release Date: April 01, 2007 Studio: Sony Batteries
Product DescriptionSONY NH-AA-B4K CYCLEENERGY BATTERY BLISTER MULTIPACK (AA 4-PK) CYCLEENERGY BATTERIES; DO NOT REQUIRE INITIAL CHARGING; MAINTAINS 85% OF THEIR CHARGE AFTER 1 YEAR; RECHARGEABLE UP TO 1000 TIMES ; AA; 4-PK
What Others Say
so far so good
Came charged out of the box, so far so good, but will know only in the long run.
Excellent batteries
They really last a lot. Other batteries that I have do not hold charge for a long period.
The best battery.
I am an electrical engineer, and I have tested many, many batteries. The Sony CycleEnery batteries are the best batteries in the world. No other battery has performed as well for me. I highly recommend this battery above all others.
There are two things that make the Sony CycleEnery battery perform so well:
First, if you weigh the Sony battery on a scale, you will find that they are several grams heavier than any of the other brands. This means that there is more material inside, which yields a higher battery life span.
Second, the voltage curve of this battery stays above 1.2 Volts throughout the majority of its life span. The reason this is important is that most electronic devices, such as digital ... Read More
Better than 2400mAh batteries
I'm using these batteries with 2400mAh batteries made by Sony. Those last longer than these. I use primarily them in my Garmin GPSmap 60Csx navigator. They last about 20 hours without backlight. With 2400mAh batteries, in same use, it last about 18 hours.
I'm giving 4 stars, because I'm not sure about its life cycle.
Pretty good Batteries
I got this set in addition to Sony 2500 mAh AA Rechargeable Nimh Batteries. This set seems to work better than Sony 2500mAh batteries.
