Comments on: Notebook and other small devices’ power supply efficiency

By: Matze

Matze — Mon, 16 May 2011 19:46:48 +0000

Ich habe grad das Netzteil meines Notebooks durchgelesen, weil es mal wieder soooooo heiß ist.
Hat 65W und Efficiency Lv V also was solls^^ wird schon gut sein.
Vielen dank für dein Artikel

By: Henry

Henry — Sun, 03 Oct 2010 11:08:20 +0000

Hallo Quian

Habe mich auch gerade gefragt, was die Effizienzklasse V auf meinem Laptop soll, danke für die Aufklärung! Ich verstehe nicht so viel von Netzteilen, aber etwas von Solarstrom, der ohnehin DC daher kommt. PV Modul direkt an Laptop anschliessen, und noch effizienter Arbeiten? Meld dich mal, wenn dich das Thema interessiert.

Gruss, Henry

By: Qian Qin

Qian Qin — Tue, 14 Sep 2010 19:19:37 +0000

you’re right, it’s 74%

By: William

William — Wed, 08 Sep 2010 07:20:00 +0000

Great post!

For “V”/”10W”, could there be a typo? Instead of 64%, should it read 74%?

By: Gustavo Penteado

Gustavo Penteado — Sat, 22 May 2010 20:36:49 +0000

Thanks for the article, but I still haven’t undertand at all.
I have a DELL inpirion notebook, and i brought another power suplly directly from a dell call center.
And arrived a “different” PSU (there wasn’t a dell logo and the connector wasn’t a octogonal shape as my original one).
And analyzing the background the only thing I found different is this efficiency level (one is IV and other is V – the original).

So I ask you, which one is better?

– sorry about any writing mistakes, I’m from Brazil.

By: Frank

Frank — Thu, 15 Apr 2010 20:32:55 +0000

Great article! It’s so reasonable to have an average minimum consumption labeled on passive power supplies – all power supplies should have this!