PKCELL N Size 1.5V Alkaline Batteries, 10 Pack MN9100/E90/LR1 Battery

Customers find these batteries work well in various devices, including Cozmo and Vector cubes, and appreciate that they cost a fraction of brand name alternatives. They fit perfectly in their intended applications, and customers consider them compatible with their needs. The battery life receives mixed feedback - while some report they last very long, others mention they only last a few months. The size also draws mixed reactions, with some finding them the right size while others describe them as too fat.