Calculator Batteries accounting, calculator, suddenly

TheMBAGlover

Hey guys,

Is there any way to check the battery levels on the TI calculators? I've been using mine pretty intensely this entire week doing practice exams. I bought it off of a colleague who was an accounting major and used it all throughout college, and suddenly had nightmares about my calculator dying during the exam (I'm def. losing it =P). Also, anyone know what kind of batteries they use? Admittedly this last part is just me being lazy and not checking before going to bed. Thanks!