Batteryについて面白そうな動画を見つけたので、技術英語関連でリスニングしてみた。
Collin's Lab: Battery Basics @adafruit #adafruit
赤文字ははっきり聞き取れない部分。
青文字はそのように聞き取れるが、文法的にしっくりいかない部分。
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Battery. They XXX1 (all?) bring up a number of different chemistry, sizes and capabilities.
When considering what battery technology to use, there are a few important attributes to keep in mind.
Namely...
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First off, is milliamp hours. You see this rating printed on most batteries.
It tells us how many milliamps (that) the battery can supply for a period of one hour.
So, this lithium polymer battery can provide 1200 milliamps continuously for one hour.
Milliamp hours tells us how long the battery will last.
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Nominal cell voltage.
This is how many volts one cell of that battery chemistry can generate.
No matter what size of the cell is, it will always generate the same voltage as long as it uses the same chemistry.
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Rechargeability.
Can the cell be recharged? If so, how many times can it be recharged?
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So, now that (the???) we have those basic down, let's look at
the most essential battery types.
Starting with...
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Alkaline batterys, are a household name.
And for a good reason, they are inexpensive and long lasting.
They're also available in a variety of sizes, with capacity that increases according to the size.
Such as, AAA, AA, C, D, and PP3, more commonly known as a 9V.
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All of the other sizes provide alkalines nominal 1.5V cell voltage.
But the PP3 provides 9V. And how does that do that?
Simple. It's not actually a single alkaline cell.
上記の単語を抜粋
- household name
- PP3