[Wear-Hard] Power for arm-mounted equipment

Norman Deschamps norman.deschamps at gmail.com
Tue Jan 20 23:27:14 EST 2009


Even worse than you think.  It only has 1500 mAh according to the specs:
http://www.chinavasion.com/product_info.php/pName/wrist-band-portable-battery/

Norm

On Wed, Jan 21, 2009 at 12:19 AM, Panthera Altaica <draltaica at yahoo.com> wrote:
>
>> supposedly gets about five hours of juicing time) for
>
> juicing hours?  That's the power source equivalent of saying a displays at X_resolution by Y+resolution by 3 pixels. so the Zire with it's 160x160 display  would be said to have  76800 pixels.  implying that it's a 277x277 display.
>
> You want to know how many Ampere-hours it has not how many hours it's take you to access the Ampere-hours.
>
> If this thing is only doing USB that' 0.5 amps. for 5 hours is  only 2500 mAh  the same as a NiMH AA.   even assuming that some marketroid saw 5000 mAh and went 5000 mAh and when that 5 Ampere-hours argo this thing has 5 hours of juicing time
>
> But it may even be worst than 2500mAh  because of the the electronics needed to keep li-ion batters from from throwing a temper tantrum and catching fire/exploding for small battery packs NiMH has a better over all energy density.
>
> This thing sounds like it was made as a fashion accessory not meant to be use to actually charge things.
>
>
>
>
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