I had some concerns before first ordering on batterychampion.com. It is foreign company and i had no experience with it before. But my concerns was reasonless. The order was correctly delivered right in my mail box, in about two weeks after order in bubble envelop. I think the batterychampion.com is easy and available way to get you right battery.
About the product:
he battery was delivered in bubble envelop and it was closed in plastic shell. The route to my was pretty long (more than 1000Km) but battery survived with no harm. I got exactly what i want and ordered (type, case, voltage.... all correct!). The battery was for mouse and with old battery i had 4 days mouse-time and with new one i have whole two weeks!!!!! So i think the battery is in good quality.