D40 Alt Mod up date

Hello all this is the mod that I have done similar to what Foxbat has done, here i have removed the green wire(from alternator) from where you can see the pen pointing to in the photos, doing this gives 14.1>14.4 volts constant. The green wire i have terminated with a screw cap.

Awesome, some photos!

Oh you've done it now - now we'll have a bunch of guys heading out to their driveways with a pair of pliers!!

It has to be said that if spotted, Nissan could argue about warranty on the alternator because it's working harder, but it has to be spotted - and given most service departments' habit of only following the recipe, they may never look and see it!

So at what rate do you reckon itd charge the second battery at once the green wire is snipped? 5, 10, 15amps??

Still should have a dc-dc charger anyway.

TigerST said:

Still should have a dc-dc charger anyway.

Click to expand...

Especially if using different chemistry batteries

If using calcium battery would agree with dc dc charger as u need 15v plus however in my case it works for me and would not waste the money on another bit of equipment

boostin_7 said:

So at what rate do you reckon itd charge the second battery at once the green wire is snipped? 5, 10, 15amps??

Click to expand...

Depends on its current state of charge.........there is no exact number.

I don't quite understand the benefit of doing this? I'm getting 14.2 to my battery, 14v if aircon is on. Could someone please explain it to me. thanks

You maybe one of the lucky car owners that does not have a smart alternator unlike mine which when 1st started put out 14v but quickly dropped back to 12.1 v

boostin_7 said:

So at what rate do you reckon itd charge the second battery at once the green wire is snipped? 5, 10, 15amps??

Click to expand...

That depends on several factors. How deeply has the battery been discharged, how hard is the engine revving, how many other things are being used at the same time.

ndr4 said:

I don't quite understand the benefit of doing this? I'm getting 14.2 to my battery, 14v if aircon is on. Could someone please explain it to me. thanks

Click to expand...

Some of the newer alternators drop the output to zero once the starter battery has been charged up. Snipping the green wire disables the function.

Mashsam said:

You maybe one of the lucky car owners that does not have a smart alternator unlike mine which when 1st started put out 14v but quickly dropped back to 12.1 v

Click to expand...

Thanks for the replies guys,
i put a battery monitor in the car & it's never showed anything lower than 14v, but my next question is if i do find that green cable does it then mean i will have the same issue you guys have with the limited charge from the alternator? Or in my case that green wire isn't doing anything with my setup?

if you a getting 14v dont touch the green wire

Is the varta battery that comes standard an agm?