What kind of batteries.  I operate 4 100/30 Victon controllers with 10 panels.  
2 feed a start / house bank of 5 group 21 100 amp start/ house batts.  2 feed a 
bank of 2x 200ah lithium batteries that are dedicated to refer and 5cf chest 
freezer.

Works well.
________________________________
From: Doug Mountjoy via CnC-List <cnc-list@cnc-list.com>
Sent: Saturday, June 17, 2023 12:26:18 PM
To: Stus-List <cnc-list@cnc-list.com>
Cc: Doug Mountjoy <svrebeccal...@gmail.com>
Subject: Stus-List Re: Dual output solar controller

+1 for the Victron solar controller. I have 1 for each panel, and they talk to 
each othrr.

Douglas Mountjoy
1988 LF 39
Mexico at large
1984 Sabre 34
Port Orchard, WA


On Sat, Jun 17, 2023, 11:11 Nathan Post via CnC-List 
<cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> wrote:
I am in the process of figuring out adding solar to my two bank setup (start 
battery + house batteries) and have  been looking at this one:
https://www.renogy.com/dcc50s-12v-50a-dc-dc-on-board-battery-charger-with-mppt/
as a possibility. However, it is relatively expensive and doesn't include 
monitoring or bluetooth connectivity without additional devices. I think I 
might go to go with a Victron controller instead and just charge the house 
batteries with solar but haven't decided for sure. Would be interested if 
anyone has experience with the renology dc-dc mppt charge controller.  One nice 
thing about it is that it will not load down the alternator so much the way the 
bluesea relay suddenly connects the house and starter batteries shortly after 
the engine starts.  Second advantage is supporting a mixed bank if I upgrade 
the house batteries to lithium at some point.

Nathan

~~~
Nathan Post
S/V Wisper C&C 34CB
Portland ME


On Sat, Jun 17, 2023 at 1:57 PM David Knecht via CnC-List 
<cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> wrote:
I put in a Morningstar Sunsaver Duo 
(https://www.morningstarcorp.com/products/sunsaver-duo/) paired with a 50W 
panel many years ago and it has worked perfectly ever since.  Keeps my 2 
batteries topped up while the boat is at the mooring.  I got the one with the 
separate output meter, which has proved useful in debugging charging issues.  
Dave

S/V Aries
1990 C&C 34+
New London, CT

[cid:188ca8700605349b00c1]

On Jun 17, 2023, at 1:08 PM, Peter W. via CnC-List 
<cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> wrote:

I am looking for feedback on dual output controllers.

I want to add a battery bank to my existing setup, but I have a single 
controller now.  It’s a Renogy Rover 20A and has worked fine; however, they 
don’t offer a dual output controller currently.
Thanks in advance for your help!
Pete W.
Siren Song
‘90 C&C 30-2
Irvington, Va.

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