You need to look up the amperage output of your alternator before installing any extra lights on your X.Am I pushing my luck with wanting to install some Hella 550 fogs? I've been reading some previous post and it looks like 55w is what we cap out at. The 550s are right at that line at 55w. I've got a 2000 X that didn't have fogs from the factory.
Alternators are basically alternating current generators that have a DC converter-regulator that provides the voltage and amperage to charge the battery and power the other accessories while the engine is running. While the engine is running it is the alternator that supplies all the power, not the battery.The battery can handle it, since it can power the starter.
The alternator is rated to recharge the battery after starting the engine, as well as keep it charged while you operate the AC clutch, blower motor, headlights, brake lights, turn signal, and reverse lights, plus any additional lights from a trailer. You can even toot your horn and not hurt the alternator. And you can do all of them at the same time.
I've added a pair of Diode Dynamics amber fog light LEDs on the front that burn with the key on, to act as DRLs. I also added pair of white ones and installed them in the rear bumper to act as reversing flood lights. I can see where the heck I'm backing up now!
I don't anticipate any issues with adding any electrical accessories like what you describe. I've done it for years on many vehicles and never once had an alternator crap out on me.
(Yes, those white lights below are LED backup lights!)
You need to look up the amperage output of your alternator before installing any extra lights on your X.
Most of the stock alternators are rated for what is originally on the vehicle.
You don't want to push your stock alternator near its limit because that could cause it to burn out prematurely.
Last thing you want is to be out in the wilderness with a dead alternator.
I do know that most aftermarket manufacturers do offer higher amp output alternators if you want to add on more gadgets or lights.
I'm not familiar with the different aftermarket brands out there, but if the amperage output is more than your extra accessories will be consuming if they're all turned on at the same time then you should be fine.I have the Quest alternator in mine so it will have more oof than the factory one. I'll see if I can find the information about it online so I know what I'm working with.
Since I never owned a Nissan before I got my current Xterra I didn't know that Quest is a Nissan product.Quest isn’t a brand, it’s a Nissan model. The xterra had alternators from 70-100A max output. The quest was born with a 125A alternator. The quest alternator puts out a minimum of 36A at 1300 rpm, while even the high output xterra alternator is only 24A at the same speed. When your xterra alternator fails, consider a quest alternator as a 25% output upgrade
I don't have any additions to my X as far as electronics. It's all stock minus the alt upgrade. The Hella 550s are self contained so they have a bulb and housing together so I don't think that would be an issue at all.You’ll be fine. A large stereo amp is 1000 watts or bigger. You’re talking about 100. The cigarette lighter is 150w. If you’ve added more than a couple lights, I’d recommend the quest alternator but you’ve already done that.
Edit: I think the concern is more putting too hot of a bulb in the housing, not overloading the charging system. Either way, I’d think 55 is fine
I just found them in a search for aftermarket Xterra alternators.quest is a model. It’s a minivan.
Rugged rocks doesn’t make alternators. They resell alternators they get from a company called DC power. If you get the DC Power alternator, you can get any color, not just orange
DC Power alternators are trash. Every one I’ve ever seen has caused a problem. You can find multiple threads about it on this site even. The last one we saw actually blew the battery up and caused a car fire. Sometimes you may not want the biggest one you can find.