[Amazon](https://npw.clicorice.ca/links/bw8VHD) has the 8-Pack AmazonBasics 9V Everyday Alkaline Batteries for 10.89 – 20% off (checked coupon “Save an extra” box, eligible on first S&S order for this product) – 5% off with Subscribe & Save (cancel at any time) = **$8.18** with free shipping on orders over $25 or free with Prime.