I was not careless. I had spent years preparing for the day the power stayed off longer than expected.

From the outside, my family had more backups than most. But when the storm came, every piece of equipment seemed to depend on something else that was no longer available.

The first blackout exposed my equipment. What frightened me was knowing the second one might expose me.

Several backup devices can still become one fragile system when they share the same dependencies.

I had prepared. I had spent the money. I had stored the supplies. I had checked the boxes most preparedness lists told me to check.

The problem was not effort. The problem was buying more equipment without asking what every device still depended on.

It was the practical ability to look at the batteries already around me and answer three questions.

I needed to prepare to know what to do without it.

Equipment can be damaged. Fuel can run out. Commercial power stations can drain. But a repeatable skill does not disappear because one device stops working.