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Salmon Fisher
Joined: 07 Aug 2009
Posts: 823
City/Region: Arlington
State or Province: WA
C-Dory Year: 2004
C-Dory Model: 25 Cruiser
Vessel Name: Kim Christine
Photos: Kim Christine
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 Posted: Thu Nov 07, 2024 2:52 pm Post subject: |
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This a great informational thread. I am seriously thinking of putting LiFePO4 in my 25 Cruiser. I would be installing 2 100 ah batteries or a single 230 ah.
What would be helpful, to me at least, is a wiring diagram that includes:
-Fuses and where they should be located
-Fuse amperage at each location
-Wire gauge for all runs
-Where DC-DC charger should be located
-Where charger/inverter should be located
-Anything else I may have forgotten
This may be available somewhere on C-Brats as someone may have already designed a "typical" system and posted their results.
Thanks in advance!
_________________
Patrick and Kim Walker
2004 25 Cruiser-Present
2000 22 Cruiser 2009-2014 (Sold)
2006 25 Cruiser 2014-2019 (Sold)
1985 22 Classic -2019 (Sold)
1991 19 Arima Sea Ranger-2019-2021 (Sold)
2015 27 Ranger Tug-2019-2023 (Sold)
1987 22 Cruiser -2021-2023 (Sold)
Honey, this REALLY will be my last boat, honest! |
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Edward J
Joined: 26 Sep 2020
Posts: 14
City/Region: Poulsbo
State or Province: WA
C-Dory Year: 2008
C-Dory Model: 255 Tomcat
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| Posted: Fri Nov 08, 2024 11:13 am Post subject: |
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I had two house and starter batteries moved to the floor at the helm seat, this really improved the drainage in the cockpit and also performance improved by getting up on plane faster. I took out the hot water tank and the switches are in the cabinet below the helm seat. I also added a Victron Multiplus charger / inverter below the front floor access panel below the helm panel. It was a lot of work but well worth it.
Ed Jonson 2008 Tomcat |
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C-Wolfe
Joined: 16 Sep 2020
Posts: 284
City/Region: Anchorage
State or Province: AK
C-Dory Year: 2008
C-Dory Model: 255 Tomcat
Vessel Name: Valhalla
Photos: C-Wolfe
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| Posted: Fri Nov 08, 2024 12:13 pm Post subject: |
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| Edward J wrote: | I had two house and starter batteries moved to the floor at the helm seat, this really improved the drainage in the cockpit and also performance improved by getting up on plane faster. I took out the hot water tank and the switches are in the cabinet below the helm seat. I also added a Victron Multiplus charger / inverter below the front floor access panel below the helm panel. It was a lot of work but well worth it.
Ed Jonson 2008 Tomcat |
Ed, did you move your start batteries inside the cabin? If so, did you notice any effects?
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Stephan
ValHalla 08 TC255 2024-present
C-Wolfe 22 C-Dory cruiser 2020-24
No Name; Bayliner explorer 26 2012-2015
sparkle; Ericson 25 CB 2008-2012
Sculpin; Drascombe Drifter 2005-2008 |
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thataway
Joined: 02 Nov 2003
Posts: 21120
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
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| Posted: Fri Nov 08, 2024 2:46 pm Post subject: |
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| Salmon Fisher wrote: | This a great informational thread. I am seriously thinking of putting LiFePO4 in my 25 Cruiser. I would be installing 2 100 ah batteries or a single 230 ah.
What would be helpful, to me at least, is a wiring diagram that includes:
-Fuses and where they should be located
-Fuse amperage at each location
-Wire gauge for all runs
-Where DC-DC charger should be located
-Where charger/inverter should be located
-Anything else I may have forgotten
This may be available somewhere on C-Brats as someone may have already designed a "typical" system and posted their results.
Thanks in advance! |
There is no "this is the only way". A lot depends on what else is installed and where. We had removed our 6 gallon water heater under the aft dinette seat, and put the Bosch 2.5 gallon behind the sink under the galley. However we wanted the space for some specific pots and pans under that seat. We had a pull out refrigerator under the forward seat.
So we put the two Li batteries under the V Berth on the Port side, along with the large fuse to the inverter, the switch on / off, the shunt to monitor the battery and a 30 amp fuse to the DC to DC charger which is next to the engine start battery All of the foam had been removed, and there are no leaks. We put the inverter on the Stb side, along with two computer fans, with a snap disc thermostat set at 100* to force ventilate the inverter--one under the helm by foot rest, and one (suction) under the aft facing surface between the V berths. I ran 2/0 from the battery switch to the Victron Multiplus 2000/50 (charger)/80 (boost). This also has a transfer switch, and is hard wired. A 30 amp fuse was placed right by the DC To DC charger on the #8 wire running to the Ii battery.
_________________
Bob Austin
Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018 to Oct. 2021
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
Frequent Sea; 2003 C D 25, 2007 thru 2009
KA6PKB
Home port: Pensacola FL |
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Edward J
Joined: 26 Sep 2020
Posts: 14
City/Region: Poulsbo
State or Province: WA
C-Dory Year: 2008
C-Dory Model: 255 Tomcat
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| Posted: Sat Nov 09, 2024 4:43 pm Post subject: |
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| Stephan, when i moved the batteries forward i saw nice improvement in my Tomcat performance, up on plane much faster and cockpit able to be better at self bailing. My boat came with 5 batteries in the aft locker plus unknown to me when i purchased my Tomcat the outboards were mounted to high. I also repowered so with combined with moving batteries its a different boat from the original. Ed |
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C-Wolfe
Joined: 16 Sep 2020
Posts: 284
City/Region: Anchorage
State or Province: AK
C-Dory Year: 2008
C-Dory Model: 255 Tomcat
Vessel Name: Valhalla
Photos: C-Wolfe
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| Posted: Sat Nov 09, 2024 5:05 pm Post subject: |
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| Edward J wrote: | | Stephan, when i moved the batteries forward i saw nice improvement in my Tomcat performance, up on plane much faster and cockpit able to be better at self bailing. My boat came with 5 batteries in the aft locker plus unknown to me when i purchased my Tomcat the outboards were mounted to high. I also repowered so with combined with moving batteries it’s a different boat from the original. Ed |
A big reason for moving my battery is to improve the cockpit self bailing, and the reduced weight aft will help on plane also. I’ve added a kicker , about #90 much further aft, so I would like to move near twice that weight forward. I’m moving 2 group 31 AGM at -#65-70 each and I might move the 2 start group 27. That will move #240 forward. That should help with the engine trim also.
What was your previous power and what did you instal? |
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thataway
Joined: 02 Nov 2003
Posts: 21120
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
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| Posted: Sat Nov 09, 2024 9:18 pm Post subject: |
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If you move the start batteries, you will have to provide heavy cables which may mitigate the weight and also are expensive. It might even "pay" to go to all Li Fe PO4 batteries, Start and house weight wise. My 255 remained self bailing. But I only put the 3.5 hp outboard in the center for very slow speed trolling.
There are many ways to change the weight distribution in the TC 255. There is all of the area under the V Berth, and one side where the water tank is not present forward (unless you have 2 water tanks, which C Dory would not do when I bought mine.) |
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Edward J
Joined: 26 Sep 2020
Posts: 14
City/Region: Poulsbo
State or Province: WA
C-Dory Year: 2008
C-Dory Model: 255 Tomcat
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| Posted: Sun Nov 10, 2024 11:57 am Post subject: |
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| Stephan I repowered with Mercury 150's with stainless steel props from 2008 honda 135's with aluminum props. Main reason i repowered the honda's were not very reliable in one motor would quit from over heating even after replacing all thermostats. So i have two house and two starter batteries under the floor at the helm seat, had to cut new opening. Ed |
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