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Replacing 1989 battery charger 38 Santego
- CptBacardi
- Deck Hand
- Posts: 93
- Joined: June 11th, 2017, 5:02 pm
- Vessel Info: 1989 Carver 38 Santego (not an aft cabin)
- Location: Texas
- Has thanked: 3 times
Replacing 1989 battery charger 38 Santego
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- CYO Supporter
- Posts: 5819
- Joined: July 10th, 2015, 9:58 pm
- Vessel Info: 1989 Carver 3807 Aft Cabin
- Location: Ontario, Canada
- Has thanked: 432 times
- Been thanked: 1599 times
Re: Replacing 1989 battery charger 38 Santego
Whether the genny battery is charged by an outside source or not really depends on the application, some are, some aren't. If you only have to banks to charge (2 x 8Ds) then you can use the third charge output of the ProNauticP to maintain the genny battery. Having said that, if you use the genny on a regular basis as you must to maintain longevity, it should maintain its battery on its own.
The charger install is pretty straight forward but you must read the instructions to ensure a proper and safe installation. Check your charge circuit run lengths both positive and negative to determine the proper gauge wire to go with. Choose the longest run from the charger to the furthest battery and use that to determine the gauge you need and use that for all of the charge wiring. Remember that the ProNauticP can deliver all of it's max output, 40 amps in your case to any one of the charge legs so each charge wire must be able to carry full rated load unlike cheaper units. You also need to check that the gauge required is what you currently have on board otherwise you'll have to replace your wiring. Even if your old charger is a 40 amp unit, don't assume your wiring is good enough as the old unit may be of an out dividing type where each bank may only be a maximum fraction of the total such as 10/10/20 amp in a 3 bank unit. If that was the case, they would have installed smaller gauge wire which won't do for your new charger.
Your old unit will likely also not have the chassis ground wire which is a must on newer units.
Several members here have installed chargers so there's a lot of knowledge if you need help with your install. PS; use only marine wiring and connectors, and it's a good idea to use adhesive lined shrink tubing for a proper installation.
Good luck and keep us posted.
- CptBacardi
- Deck Hand
- Posts: 93
- Joined: June 11th, 2017, 5:02 pm
- Vessel Info: 1989 Carver 38 Santego (not an aft cabin)
- Location: Texas
- Has thanked: 3 times
Re: Replacing 1989 battery charger 38 Santego
-
- CYO Supporter
- Posts: 5819
- Joined: July 10th, 2015, 9:58 pm
- Vessel Info: 1989 Carver 3807 Aft Cabin
- Location: Ontario, Canada
- Has thanked: 432 times
- Been thanked: 1599 times
Re: Replacing 1989 battery charger 38 Santego
- CptBacardi
- Deck Hand
- Posts: 93
- Joined: June 11th, 2017, 5:02 pm
- Vessel Info: 1989 Carver 38 Santego (not an aft cabin)
- Location: Texas
- Has thanked: 3 times
Re: Replacing 1989 battery charger 38 Santego
-
- CYO Supporter
- Posts: 5819
- Joined: July 10th, 2015, 9:58 pm
- Vessel Info: 1989 Carver 3807 Aft Cabin
- Location: Ontario, Canada
- Has thanked: 432 times
- Been thanked: 1599 times
Re: Replacing 1989 battery charger 38 Santego
- CptBacardi
- Deck Hand
- Posts: 93
- Joined: June 11th, 2017, 5:02 pm
- Vessel Info: 1989 Carver 38 Santego (not an aft cabin)
- Location: Texas
- Has thanked: 3 times
Re: Replacing 1989 battery charger 38 Santego
- CptBacardi
- Deck Hand
- Posts: 93
- Joined: June 11th, 2017, 5:02 pm
- Vessel Info: 1989 Carver 38 Santego (not an aft cabin)
- Location: Texas
- Has thanked: 3 times
Re: Replacing 1989 battery charger 38 Santego
- bud37
- Admiral
- Posts: 4689
- Joined: April 23rd, 2015, 10:22 pm
- Has thanked: 550 times
- Been thanked: 1150 times
Re: Replacing 1989 battery charger 38 Santego
IF your boat is wired correctly both engines will start from either #1,#2 or all positions on the switch. The switch itself just directs which battery or battery bank you draw from or direct power to. You can discover which is which with a tester.
Check your switch to see if it is a make before break type..( sometimes written on it or will be in your manual as to how to use it )......in other words it will never completely disconnect from one position before it makes the next. This allows you to switch thru the battery positions while the engines are running . NEVER switch thru the off position or turn the switch to off while the engines are running it will deadhead the alternators and may cause damage.
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- CYO Supporter
- Posts: 5819
- Joined: July 10th, 2015, 9:58 pm
- Vessel Info: 1989 Carver 3807 Aft Cabin
- Location: Ontario, Canada
- Has thanked: 432 times
- Been thanked: 1599 times
Re: Replacing 1989 battery charger 38 Santego
YES, and the power for all your house loads. Which battery the power comes from (port or starboard, depends on which position you have the switch set to; 1 or 2 or ALL/BOTH. BTW, if you don't already know and it's not marked anywhere, it's a good idea to know which battery, port or starboard is number 1 and which is number 2. It's easy to find out. Let us know if it's not marked and we can walk you through the process.CptBacardi wrote:Source of the post.....Is it possible the “com” on the single switch is feeding both starters?
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