[T3] Keith's T4 Charging Dilemma

[Keith Park]

Now thats a definate Hmmmm!!!

its on the rear engine compartment wall, as im running a 914 harness and
thats all it would reach.  Last sunday's drive home was 35 degree's colder
than the previous weekend's and I dont think I was paying enough attention
earlier in the spring to see if it was a higher voltage around town then.

are the electronic ones have a temp coefficient as well?

Keith

On 1 Jun 2020 at 22:29, Keith Park wrote:

> Drove it home from camp on Sunday, but before dark this time.
> Startup it kept 14v even at idle, wandered down to 13.9 at times but held
> right around 14V for a half hour or so on the secondary roads till I got
> on the interstate, then after 8 minutes it went down to 13.6 where it
> stayed for the rest of the hour home.  No headlight use.

Hmmmm, indeed. Not sure what this means, but it doesn't sound right. 
Where did you install your VR? They often have a temp coefficient, so they 
should be installed in the same space as the battery. Did you put yours 
under the back seat, in the usual Type 3 location?

If it's back in the engine compartment, that could be the problem. They were

installed in the engine compartment of 914s, same as the battery, but I
don't 
remember where they were on Type 4s. Type 4 batteries were under the 
driver's seat, which always seemed like a poor choice to me.

I believe the temp coefficient is just a bit negative, so that the battery
gets 
charged higher in cold weather, when it might be needed more, and charged 
less in hot weather, to reduce the stress on the battery when it is hot.

-- 
*******************************
Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
*******************************

_______________________________________________
VWType3.Org mailing list - type3 at vwtype3.org
To unsubscribe or change subscription options, visit:
http://lists.vwtype3.org/listinfo.cgi/type3-vwtype3.org
If you need more help, contact: gregm at vwtype3.org