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"I don’t worry about batteries at all! In fact, some were dropped off a few minutes ago!"
"We’re wasting less batteries now. We used to change my mom’s batteries every time we visited, but now with the battery tester we know if her charge will last until the next time we visit. "
"They last longer than the ones I used to use. The quality is very good!"
Your battery size can be located on the left hand side of the box.