The price of the battery or the price of the final product that uses batteries? Regardless, it matters what your pricing power is. For a luxury finished produ

The price of the battery or the price of the final product that uses batteries? Regardless, it matters what your pricing power is. For a luxury finished product - you price on what your consumers will bear (with some maximization curve). For a commodity battery - then maybe. Though, I'm not sure I follow your logic why this means more batteries will be sold.