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.