More on 42v Electrical Systems and Auto Lighting

[SMILLER@xxxxxxxxxxxxxx]

More from Larry Ayers, CCA member and lighting specialist:

Referring to a German guest:

>He commented last
>night that electromagnetic valves were a driving force behind 42 volt
>automotive systems.  By the way, do not attach too much authority to
>the name "42 volt."  Although our cars now have a "12 volt" system, we
>test automotive lighting at 12.8 volts for Roadway Illumination Devices
>(headlights, driving lights, etc.) and 13.5 volts for signaling and
>marking devices.  From a battery cell standpoint, lead-acid batteries
>are still a lot cheaper than nickel-metal-hydride (NiCd replacements).
>However, in a few decades, batteries for electric cars may have
>improved to the point that Li-polymer, sulfur-zinc, or some other
>technology may be prominent.

Scott Miller
GGC BMW CCA #44977
1990 325i/is hybrid
Waiting for my next car to have electromagnetic valves

------------------------------