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Re: BIG power options..............

Subject: Re: BIG power options..............
From: "Dan Dugan" dandugan_1999
Date: Mon Apr 14, 2014 8:49 am ((PDT))
> For this compact battery capacity, the price would be in three figures. I=
've
> found similar claims, but my dictum is: "if it's too good to be true ..."=

>
> I've had a search and why are very different devices all claiming exactly=

> the same huge capacity? Doesn't anyone know what a mAh is? A motorcycle
> starter battery is 10000mAh.
>
>> http://www.ebay.co.uk/itm/171158307647?_trksid=3Dp2055119.m1438.l2649&va=
r=3D470299274540&ssPageName=3DSTRK%3AMEBIDX%3AIT
>
> Now this one is claiming the capacity of a car battery but small enough t=
o
> go in your pocket. Hmm.

The capacity of lithium-polymer packs is scary. They power the popular dron=
e helicopters, for example. And I've seen an ad for a hand-sized battery th=
at claims to be able to jump-start a car.

I have personal experience with the New Trent IMP1000 rated at 11.1Ah (Ah, =
not mAh!) or 41Wh. I powered my USBPre 2 overnight with it with plenty to s=
pare.

There is a trend to specify batteries in Wh rather than Ah.

-Dan








"While a picture is worth a thousand words, a
sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.



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