SH> He's talking about a trickle charger which keeps a battery that is fully
 SH> charged up to snuff.  That's completely different from charging a flat
 SH> battery.  I used a trickle charger for several years but there's not
 SH> enough room under the hood in my current Honda for one.

What is a trickle charger?

 BF>> Just to operate the engine starter when having it on a table took 120 A
 BF>> so the battery must really be good to operate it mounted in car where it
 BF>> even have to rotate the motor.

 SH> Starters may now be more efficient.

No. Rather the opposite. And you can't really make a starter more efficient.
What it takes to rotate a motor you must provide and making a starter smaller
isn't possible. Smaller in size perhaps but not "smaller" in A.
If it takes 1 hp
to rotate an engine you have to provide 1 hp. I hope you understand what I mean.
The engines are getting bigger again and a V6 demands even more and 120 A
was in "idle" so to rotate a engine in the car will add about 50
A but the batterys
are designed to coop with this unlike batterys in caravans. They are designed to
leave low A over a long time.

//Bj”rn

---