I Tested the Ti-84 Calculator Battery: How Long It Really Lasts and How to Replace It
When I first realized my TI-84 calculator’s screen was fading and the buttons felt sluggish, I knew it was time to tackle a simple but crucial task: replacing the battery. For anyone who relies on this iconic calculator—whether for school, work, or personal projects—the battery is the lifeline that keeps it running smoothly. Understanding the…