As the mechanic in my social circle, I was asked by a friend if I could swap the battery pack in her Prius. After a little research, a genuine Toyota replacement seemed like the safest bet. Several Toyota dealers flat out refused to sell me a pack. After a little more looking aroud for my next best choice, I found Exclusively Hybrid among a few other top contenders. I had a question about shipping and core returns, and they were easy to get a hold of, and super helpful on the phone. Well priced, good warantee, free shipping and return shipping to a commercial address. Can't beat it. How easy the actual install is, and how easy the purchase and dealing with it is, I might start changing hybrid packs as a side hustle, can easily undercut toyota and the other installer services by more than a K and turn a profit.