Ordered to replace swollen battery in my MS906PRO-TS that i have in my toolbox at work. Was the only seller of this battery. Very promptly received email as courtesy confirming that I had chosen the right battery (because the non pro editions use a different battery) and refunded me 30 dollars for selecting the wrong shipping since fast shipping was not available for batteries (thank you!!!). The battery came in a very well packaged box to prevent damage. Installed the battery and now my tool is working again! I was skeptical at first since this is the only website and the product was coming from China, but decided to take a shot since someone else left such a good review. The contact through email to receiving the item was 10/10, great customer service and good product!...