Mine came with some brief instructions but no information at all about the
technology used nor cranking amps or whatever. It seems that when they are
discussed the general consensus is that they couldn't work as well as they
do.

I wonder if you could hook one up along side a deep cycle battery to charge
while you were running, then this thing would actually do most of the work
of starting the car? That way you could have your cake and eat it too, with
just one battery.

Jim

On Fri, Dec 5, 2014 at 3:55 PM, Vanagon <camping.elliott@gmail.com> wrote:

> How many cold crank amps can those things possibly pack? Why aren't we
> using them for starting batteries if they work that well?
>
> Dark magic, indeed.
>
> Jack Elliott
> 1984 Westfalia
>
> > On Dec 5, 2014, at 11:51 AM, Loren Busch <starwagen@GMAIL.COM> wrote:
> >
> > This subject came up a couple of weeks ago, I think on this list.  The
> new,
> > very small/compact jump start batteries.
> > Well, I got a chance yesterday to try on.  On a very dead battery in my
> '90
> > T-Bird.  And the darn thing worked!  Actually three times!  And according
> > to the meter on the thing it was only pulled down about 20%.
> > One of these:
> > <
> >
> http://www.amazon.com/Spirit-G03-Emergency-14000mAh-Saunsung/dp/B00KCBCXKC/ref=sr_1_1?s=automotive&ie=UTF8&qid=1417808523&sr=1-1&keywords=spirit+battery
> >
> > So, I'm impressed.
>