Absolutely no problems with the battery. Arrived in new condition and the battery application on my T450S said it was the first or second time it had been charged. Very pleased.
Thanks.
Looks and feels great. They use the old plastic mounts and fits on the old plastic mounts and the lip is a little wider to hold them on. I used a little double sided tape just for insurance since I already had it, but don't feel it was really needed.