Are you using a rechargeable battery?

AA batteries are typically 1.5V, but some rechargeable ones are only 1.2V. This leads to the product thinking the battery is always low even when it’s fully charged.

If you have a Li-ion rechargeable, you get the opposite problem. The battery is actually around 2.7V, and has a converter internally to step it down to 1.5V. You will keep getting 1.5V until the battery goes flat with no warning.

The laws of physics are very commendable, but the only law that applies in the UK is the law of the UK

It feels pretty easy when all you have to do is observe and give occasional instructions.

Most people are pretty bad at guessing the amount of effort someone else needs to complete a task.
Most people also have enough empathy to ask how much effort it was instead of telling you what they experienced and assuming it was the same for you.

Unfortunately, some people will still think a headache is painless because they are not the one experiencing it.

https://xkcd.com/37/