battery isolator/ 1999 mecrcury 200xl

[dkline]

I recently purchased a battery isolator to connect my 2 batteries. I need help on which wire from the engine I need to connect to the isolator. The positive wire from the engine currently serves as the charging and starting wire. How can I connect the isolator and switch effectively

 

[Spidybot]

Re: battery isolator/ 1999 mecrcury 200xl

Didn't the switch come with a manual/instructions?<br /><br />Depending on the type of switch (manual turnswitch for batt. 1, 2 or both?), the idea is to be able to connect ALL powerconsuming or powergenerating devices to the batteries, #1, #2 or both. This can be done by keeping a common negative and switching the positive. The charge will folow the switch and go to whatever battery is selected.<br /><br />Unless the switch is designed for it, I'd recommend switching when the engine is running, only.<br /><br />Therefore, all that was originally connected to the battery positive should be moved to the common 'out' on the switch and the batteries' positive's to switch's '1' and '2', respectively.<br /><br />The batteries' negative should be joined and stay connected as when only one battery (or two conned as one) were used.

 

[dkline]

Re: battery isolator/ 1999 mecrcury 200xl

The switch and the isolator both came with instructions. They talk about getting a direct 12 volt feed from the altenator. Currently I only have the starter/charging wire. The isolator will only be effective if I can separate the two. I need to know where to tap into the 12 volt charging feed and eliminate the combination.

 

[Wellcraft 89]

Re: battery isolator/ 1999 mecrcury 200xl

is this a mercury isolater?<br /><br />I can only say what I have in my 04 manual for 90 -125 hp .<br />Not positive its the same for your engine.<br />but the diagram <br />2 red wires on your VR/rectifier both go to your starter sol.The small one is the sense wire that stays on the starter sol.The large red coming out of the VR/R goes to the center terminal(a)of your isolater.Then primary bat goes to b1 of your isolater and secondary bat goes to b2.<br />You also need a large red from your primary bat to the starter sol(same post you took off the wire from VR/R)<br />Now I would chk with the correct manual before doing this though.if you can understand it<br />Rich