It took me 60 a spare battery for my somewhat aged but still good current Think Pad T. So I bought here and am quite impressed - at start-up you can read the battery -productiondata. The manufacturer is Sanyo - one of the world's best specialists in lithium ion battery technology.
The battery can be used just as well as the original battery pack, the performance data are absolutely ok says the battery analyzer. And at this really good price - that's value determines five stars
