Thumb Score: +16

Amazon [amazon.com] has 4-Pk Energizer MAX 9V Alkaline Batteries for $9.92 – 40% when you ‘clip’ the coupon on product page – 5% when you check out via Subscribe & Save = $5.45 > now $6.81.
Shipping is free with Prime or on $35+ orders.

Price
$11.41 lower (68% savings) than the list price of $16.86
$1.25 lower (19% savings) than the previous price of $6.70