Review on Energizer Battery Height 5 Wide Length by Megan Marshall

They appear to be mercury batteries with a silver "energizer" on a black background. They work, but not for as long as other mercury-free batteries bought around the same time. I had one of each needing to be replaced around the same time. This battery read 0 volts, cracked along the seam, and corroded along the seam and at the negative terminal. Compared it to a dead mercury free battery and found no corrosion or splitting and the charge was still there but below hardware specs. Both batteries were used in the same type of equipment (security sensor Fortress). The visualization of the problem was random as I set the batteries aside for testing rather than recycling them directly. The main problem is the splitting and corrosion of this battery. Due to the type of use, the battery was recognized quickly and did not affect the sensor electronics. I believe both types of batteries were purchased from the same seller.