Also, you will see in the last cell of the chart, vendors Mooch considers "reputable" meaning they sell authentic
batteries only. Some of the newer 27-- chemistry it may be a bit harder to find what you need, but for Sony, any of the battery manufacturers listed should have what you need. It can be very hard to spot fakes and counterfeits and in a mech, especially, you really need to know that your battery is authentic. The good news on that is the good manufacturers tend to have reasonable prices, often less than in other less reputable places, and most process and ship quickly.
If you aren't in the US, you might try some of the international forums to figure out a reputable supplier Best of luck and welcome
Anna