Subject: Re: [vintagvw] Battery isolation relay
Bert,
Part number for the new Bosch part please?
Also, Let's think through your description of how this really works.
From you explanation of the original relay wiring that has only 4 terminals,
I am not sure that it works the way you think it does
Every once in awhile, a question comes up that I actually feel qualified
to chime in on. I am an electrical control system engineer with 25
years in power plants, and relay logic is a second language to me
Check your wiring descriptions again- the description for the 'new'
relay doesn't
With the batteries connected in parallel, they cannot have different
voltages (axiomatic- they are connected by a very low resistance wire,
and current will flow as needed to keep them at the same voltage). The
relay can't be triggered by a difference between the batteries. This
description
Volks,
I need some help. Various VW models over the years have used dual-battery
systems: campers, sound trucks, fire engines, and police cars to name a
few. The two batteries are connected via an isolation relay (in German it's
a Batterie-Trennrelais). The idea is to permit both batteries to
Discussion Group
Subject: [vintagvw] Battery isolation relay
Volks,
I need some help. Various VW models over the years have used dual-battery
systems: campers, sound trucks, fire engines, and police cars to name a few.
The two batteries are connected via an isolation relay (in German it's
Bert,
Part number for the new Bosch part please?
Also, Let's think through your description of how this really works.
From you explanation of the original relay wiring that has only 4
terminals, I am not sure that it works the way you think it does.
On the original:
51 is the feed
Group
Subject: Re: [vintagvw] Battery isolation relay
Bert,
Part number for the new Bosch part please?
Also, Let's think through your description of how this really works.
From you explanation of the original relay wiring that has only 4
terminals, I am not sure that it works the way you
Group
Subject: [vintagvw] Battery isolation relay
Volks,
I need some help. Various VW models over the years have used dual-battery
systems: campers, sound trucks, fire engines, and police cars to name a
few. The two batteries are connected via an isolation relay (in German it’s
a “Batterie
On Fri, 15 Mar 2013 14:37:01 -0500
Bert Knupp bert.kn...@comcast.net wrote:
As described in the factory’s shop bulletin, the relay is actually
supposed to open the circuit only when the potential between battery
#1 and ground drops below 10.0 volts, but keep them connected in
parallel so
