At the blackout of week before last, I told you the story of "I was in trouble with a shortage of size C battery".

It might be enough to leave AA batteries in the radio, However, "leakage" problem occurs frequently, when leaving the batteries in the long-term,

After that, the slot of the battery rusted, the worst, the radio itself breaks down.

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Previously, In the Ebatas, we used batteries quite frequently, but recently we only use them for LED flashlights.

And its size is almost "AA 3" (Rarely AA 4 also exists).

So, AA batteries are quite abundant in our house.

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By the way, although batteries are different in size, in fact, AA and C have the same "height".

So, if you can "thicken" the girth of a AA battery, you can use it as a C battery.

"I thought it was a certain that converts the size to AA to C", and I could easily find it on Amazon, however,

"It was expensive."

Why do I have to pay 300 yen per just plastic adapter?

At home, I need at least six C batteries, I will have to pay 1800 yen as well.

In this case, buying AA is far cheaper.

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While thinking "I'm getting angry, and I was searching it on the net, I found ideal thing.

That's it.

This is 50 yen per adapter.

Immediately I ordered my family to "purchase 3 bucks" by LINE from the office,

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Two days later, my wife got this adapter at a 100 yen shop, and "single type C shortage problem" was ended.