[C320-list] Battery plan

[danny at jensenshouse.com]

Ted,
Here is my project. I added a few other things. However you can see the details related to your project. Don't think that I was smart enough to figure all this out on my own. There were about 10 people who contributed. Contributors are mentioned on the front of this project.
http://www.mammothcondos.com/electrical-upgrade-c320.pdf

I think it is essential to draw up a schematic before you start work. When everything is apart or when you are ordering parts it is very nice to have. My schematic is in my project notes. You will see I chose to add MR BF fuses and added a a backboard. If I was to do this todayI would use Starboard instead of plywood for the backboard.
Danny

Sent from my iPhone

> On Jun 15, 2017, at 7:22 AM, Ted Harrison <tharrison at innovations-plus.com> wrote:
> 
> Thanks Jon
> 
> Ted Harrison
> 
>> On Jun 15, 2017, at 6:48 AM, Jon Vez <jonvez at comcast.net> wrote:
>> 
>> Ted,
>> 
>> I did something very similar on my 320. However, unless I'm misunderstanding
>> your proposed install, you don't need to run the G27 NEG to the engine
>> starter. Run the NEG to the new combined House Bank to finish the circuit.
>> Generally not a good idea to run multiple Neg to Main Ground (engine).
>> 
>> Additionally you should already have a POS for your Reserve/Starter battery.
>> When you parallel the House, you will go from two POS connections to the
>> switch on each 4D, to just one. Take the other and connect it to your
>> Starter/Reserve.
>> 
>> Use the echo charger to keep the Reserve topped up, use the big House bank
>> for everything else, including starting the engine. It has much more
>> cranking amps and the little battery can be seen as your emergency battery
>> to start the engine in the event the House bank won't crank the engine.
>> 
>> I see the real improvements for phase 2 as a Battery monitor (although
>> seriously consider doing this in Phase 1) and connecting your Alternator
>> directly to your House Bank...
>> 
>> My 2 cents...
>> 
>> 
>> 
>> -----Original Message-----
>> From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On Behalf
>> Of Ted Harrison
>> Sent: Wednesday, June 14, 2017 8:16 PM
>> To: C320-List at Catalina320.com
>> Subject: [C320-list] Battery plan
>> 
>> Can you tell me if I am missing anything in the below plan. This is phase
>> one. 
>> 
>> - purchase 2 4D SRM Interstate batteries. They will remain in current
>> location.
>> 
>> - Build a shelf forward of the 4ds and place a group 27 battery in this
>> location. Currently have a Group 27 purchased last year. 
>> 
>> - purchased two battery cables 6 feet length, connect 4d's together positive
>> to positive. Negative to negative.
>> 
>> - purchase 21 feet battery cable and run from starter (negative) to group 27
>> negative. 
>> 
>> - purchase 6 feet battery cable, negative to negative,  and connect house
>> batteries 
>> 
>> - purchase 20 feet positive and run from group 27 to position 1 on the
>> battery switch. 
>> 
>> - positive on house bank to position 2 on battery switch 
>> 
>> - positive from engine on both position on battery switch.
>> 
>> Charging: both house batteries run to a ProNauutic 12- 30 P charger. 
>> 
>> - Purchased a Xantrex digital echo charge to connect group 27 to house
>> batteries to keep the starting battery topped up.
>> 
>> - battery cable 1 / 0 battery cable 
>> 
>> Your evaluation / comments would be appreciated.
>> 
>> Ted Harrison
>> Hull 424 
>> Whitby, Ontario 
>>