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trader_4 trader_4 is offline
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Default Lead acid battery charger (or alternator) switching to tricklewith load present?

On Sunday, June 23, 2019 at 2:35:56 PM UTC-4, Rod Speed wrote:
"Dean Hoffman" wrote in message
...
On 6/23/19 8:39 AM, trader_4 wrote:

And so far I haven't seen any evidence presented here that shows modern
ones can tell the difference and care about it either. The ones I've
seen, still have a voltage regulator in the alternator that functions
like it has for most of the last century. Rod claims to know so much,
including that they use the resistance of the battery cable to measure
current, but he can't produce anything other than his own flapping BS
gums and he's likely just doing the usual, making it up on the fly
and lying.


One problem with what he's suggesting is the connection from the cable to
the battery itself


Nope.

if I understand what he's saying.


You clearly dont.

I've seen so many bad connections over the years. Wiggling that
connection or putting a sheet metal screw in it changes the resistance
dramatically.


Yes, but that has no effect on the RESISTANCE
of the substantial wire between the positive
terminal connector and the other end of that wire.

A few feet of wire in an engine compartment won't have much resistance to
measure.


What is measured is the voltage drop across that wire.
Thats acting like an ammeter shunt.

It would take a very sensitive tester to measure that little bit.


Trivial to measure the VOLTAGE DROP across that wire.

14 awg copper wire has about 2.5 ohms resistance per 1000 feet. #2 awg
wire has about 0.16 ohms per 1000 feet.


Show us any reference that says this is what is actually done.
Waiting...... Nuff said.