[Leica] OT - battery behaviour in car vs camera?

[jbcollier at shaw.ca (John Collier)]

Yes after you shut off the drain and battery will develop a surface  
charge that might get you over the hump you couldn't get over before.  
10 minutes is not enough to recharge your battery. Put it on a slow  
charger overnight.

John

On 19-Dec-07, at 2:09 PM, Vick Ko wrote:

> So this afternoon, I'm in a hurry to go to the dentist, I get into  
> my car
> and find that the engine won't turn over.  Seems like I left the  
> lights on
> and drained the battery, after coming home 1 hour ago.
>
> I use the wife's car, get my appointment over with, and then face the
> challenge of having to boost my car.
>
> Just anyway, I try the car engine, and miraculously, it turns over  
> to start
> again.  I idle it for 10 minutes to let it recharge (apologies to the
> planet).
>
> So - do car batteries "revive", even just enough to start the  
> engine?  Never
> saw that phenomena with camera batteries.  Once they are flat, they  
> are dead
> (camera batteries).