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2019年2月13日 (水)

cheeroの45Wアダプター、私のようなMBP13、iPad Proユーザーに最高

先日、cheeroから『USB-C PD Charger 45W』という充電アダプターが発売された。色はブラックのみ。販売価格は2580円(税込・価格はモールによって異なる。定価は3480円)。

iPad本の締切で忙しくて出遅れたので、ちょっと詳しい話をしよう。

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結論から言うと、MacBook Pro 13のお出かけバッテリーとして純正より軽くて最高。私のように、MacBook Pro 13とiPad Pro 12.9を持ち歩いている人なら、これだけで両方とも充電できるから、非常に便利。また、最近増えているUSB-PDで充電可能なモバイルバッテリーがあれば、それも充電できる。

もちろん、自宅などでは純正61Wの方が充電速度が速いのは言うまでもないが、出張などでできる限り荷物を減らしたい場合には、とてもいい選択肢だ。

計測してみた。

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ちなみに、最近のデバイスはとても賢いので、一様な数字を取るのが難しい。だいたいにおいては、空に近い状態だと、急速充電し、容量がいっぱいだとゆっくり充電する。本体、充電器、ケーブルのネゴシエーションをし、温度なども計測しつつ充電するのだろう、状況によってけっこう電流量が変わったりする。

だから、この計測データもあくまで計測時の一例のデータとして考えていただきたい。極力最大値を取ろうとしているが、あくまで計測時の状況だとご理解いただきたい。

という、前提で考えていただきたい数値だが、cheeroの45Wは、iPad Pro 12.9を充電すると純正の倍近い速度で充電でき、MacBook Proだと純正の3/4ぐらいの速度で充電できる。

iPad Pro 12.9を充電するなら最高の充電器のひとつだし、MacBook Proでも高負荷の処理をし続けるのでなければ、44Wで充電してくれれば十分だと思う。

20190205_165202

ちなみに、バッテリー本体の重さは単体が純正61Wが196gに対してcheeroの45Wアダプターは124g。重さを63%に低減できる。

ケーブルを、純正と、cheeroのバッテリーに付属していた50cmぐらいのUSB-C−USB-Cで組み合わせてみると、純正256gに対して138gに抑えることができた。この差はかなり大きい(ただし、ケーブルが短いので利用条件は限られるが)。

価格もMacBook Proの純正の61W USB-Cアダプター(6800円(税別))よりはだいぶ安い。
Img_8680
というわけで、MacBook ProやiPad Proを持って出張に出る人で、アダプターまわりを軽量化したい人は参考にしていただきたい。

iPad Proの充電に関しては、こちらの記事も参考に。

新型iPad Proをどのアダプター、バッテリーで充電すれば良いか計ってみた
https://www.ei-publishing.co.jp/articles/detail/flick-475623/



(村上タクタ)

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