Home » Public Forums » GMCnet » Isolater vs Alternator (My experience)
| Re: [GMCnet] Isolater vs Alternator [message #326738 is a reply to message #326699] |
Mon, 04 December 2017 17:13  |
Richard Denney
Messages: 920
Registered: April 2010
Karma:
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Senior Member |
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A combiner only combines when there is charging voltage present. Current
goes from higher voltage to lower voltage, so it always goes from the
charging source to the batteries, and not from one battery to the other.
The current will divide itself to be drawn more to the battery at a lower
charge state.
The problem of batteries killing each other happens when there is no
charging source active, and current flows from the higher battery to the
lower one. If the lower battery can't take a charge, both will end up dead.
But a combiner de-combines at voltages below charging voltage (13.1 volts).
http://www.gmceast.com/technical/Denney_GMC_Electrical_Sys.pdf
Rick "fulfilling requirements automatically" Denney
On Sun, Dec 3, 2017 at 3:40 PM John Phillips
wrote:
> Does a combiner tie both battery sets together when it starts to charge? If
> so how do you avoid using the charged battery to charge the discharged
> battery?
> I would think the isolator even if you went to 400 amps would be a better
> deal as long as you use a remote sense alternator. There is a 400 amp full
> wave bride on eBay for less than $30 and the $150 amp is less than $10.
> What am I missing about a combiner?
>
>
> --
Rick Denney
73 x-Glacier 230 "Jaws"
Off-list email to rick at rickdenney dot com
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