two finyallys!

It took me decades to finally figure this out. It wasn’t until I started building solar systems and batteries that I realized what was happening.

You can have the same issue with rechargeables, but they are more resilient. Running them in parallel will work fine because the batteries balance out their state of charge. When you run them in series they have no way to balance out and one is always dragging the rest down. If the difference is too much then that lowest battery heats up considerably. That cooks the electrolyte.

This won’t happen if you are constantly using the remote and batteries,

It still can. I have found that the most common cause of batteries going south like this(when being used actively) is when there is a voltage mismatch between the batteries.

Always make sure you use batteries from the same pack when you put them together in a device. That or get a voltmeter out and check to make sure their voltage is the same.

This is less of an issue when the batteries are in parallel, but almost all cases where batteries are combined in electronics, they are putting them in serial.

https://www.youtube.com/watch?v=kzVfXvTQnEQ

Flock cameras can be wrong and cops see everyone but themselves and rich people as criminals.