As of April 2015, six Lenmar brand A76 batteries are available from Walmart for $13.32, plus $4.44 shipping. From Amazon.com, 50 A76 batteries are available for $4.49 with free shipping. Users can also buy them for as little as one cent from various sellers on Amazon.com.
The A76 battery usually powers calculators, watches, cameras and smaller electronic devices. In some situations, it works as a backup battery when a larger, stronger battery loses power. The A76 batteries sold by Amazon.com contain alkaline manganese, and they have high reviews, with an average of 3.8 out of 5 stars. The A76 batteries sold by Walmart do not have ratings.