Recent content by Enargins

An interesting followup: I was reading an article recently about a megabattery pack, with about 420 Wh of power. The interesting thing is that the author of the article cited the mAh and then in parenthesis stated what that was in Wh. When you do the math, turns out he was using 3.7V to do the...

You're right! If EU stands for European Union, then here's a thought. The battery is a 43 WHr battery. In the EU, perhaps they use the maximum voltage (19.5 V) to specify mAh. In the US, though, perhaps they use average voltage (3.7 V) to specify mAh. (That's just speculation on my part.) Thus...

That was taken from the information on the back of the external battery. See the picture I attached.

I don't think I missed anything, but I uploaded a picture from the back of the external battery with the specs. Also, here is the spec document for the external battery (discussing only the power DC jack here, not the USB port)...

But that's the thing. WHY is the battery capacity * 2.3A? If the battery is rated at 12,000 mAh, wouldn't that be 12 Ah, not 2.3A? (I realize I'm mixing A and Ah; but it seems that the A should be the same whether it's A or Ah.) Anyway, that's my question -- where does the 12,000 mAh come into...

I'm in the U.S. 120V. Don't know about the Hz.

I'm a complete noob when it comes to electrical stuff, but I have a question about something, so please bear with me. I have a Dell laptop (Vostro 3550), and recently bought an external battery for it ("Dell Power Companion"). The external battery is rated at 12,000 mAh. Since my laptop voltage...