I found it hard to find the right battery for my Lenovo s20, but StoreBattery had it listed so I ordered one.
I had problems tracking the order but one email and they sent me a link to the tracking. There was a slight delay because of the volume of Christmas post but the batter arrived in good time.
It fits and is showing a good charge.
Thanks for the good service. I will use again if I need to replace a battery.