“My experience is based on previously buying from competitor RefurbUPS.
The price is very good and these seem to work fine in my SMX1500RM2U. However, I think it would be good to raise the shipping price by ~$2-4 or so and include better packaging. The batteries are not sufficiently secured in the box, causing the bottom of the box to bow out significantly, and run the risk of cracking the batteries if FedEx roughs up the package. I recommend closed-cell foam or those expanding foam inserts to ensure the batteries don't move around. Additionally, a double layer box might help.”