Following all of the outdoor electric tools and other offers in our Green Deals guide, the prime Day savings are making their way over to rechargeable batteries ... With as much as 50% in savings across a collection of bundles from brands like Energizer, Duracell, and Amazon Basics, pricing starts at $7 when you take advantage of the added Subscribe & Save promotions ... Ranging from bundles that include the required Wall Charger to add-on batteries for expanding your kit, these are some great ways to cut back on waste from typical batteries.