How long do BAII plus batteries last

This might be a bit silly, but I am a little paranoid that my batteries will die on test day. I’ve had the calculator since Jan and have used it only while studying for the exam (so not 24/7). What are the odds that batteries will die on sat?

If you bought it in Jan, don’t worry about the battery. I’ve had mine since 2012 and it still works perfectly but I bought another one just in case

I always bring 2 calculators.

i always take an extra battery with me. Be aware that settings are set back to factory. So in case you have to change the battery, you have to change settings again

you should change the battery before, not during, the exam. It’s not as easy as you might think

it is very easy. You don’t even have to bring a screwdriver for opening the BA II Plus Professional. It’s just like changing the battery of a remote