Can alternator handle 7 daylighters - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 09-14-2005
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Can alternator handle 7 daylighters

I have a 2004 ranger edge and already have 2 KC 100watt Daylighters on the front of my truck and was wondering if i could safely put 5 more on a roll bar that Im installing without frying something. I dont know the output of the alternator. I would also be running the regular headlights and foglights at same time. They are more for looks but i do plan on using them. Do you guys think i need a better alternator or would it be fine.
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Old 09-14-2005
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probably not...


you could probably have em on for a lil bit not for a long time..

Zach should chime in soon..

but an red top battery would help
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Old 09-14-2005
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Ya get an optima battery for now. You will probubly have to get a new alternater eventually but it will be ok until the stock one dies, then you should get a bigger one to handle the lights.
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Old 09-14-2005
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the biggest alternator ive found was like a 250 direct placement..but i cant remember where i found it at
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Old 09-14-2005
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Your alternator is 90 amps.

Thats amount of lighting requires about 60 amps.
Stock lighting is probably around 10 amps.
Blower motor, wipers, ignition system, stereo, electronic components, etc add onto it.

You're going to exceed 90 amps.

You can buffer it with a big **** battery but that is like putting a bandaid on an amputation and if let go long enough, you won't be able to start your truck one day. I would forget the big battery and buy the alternator. You should never rely on the battery to do anything so long as the engine is running.
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Old 09-14-2005
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Quote:
Originally Posted by FireRanger
You can buffer it with a big **** battery but that is like putting a bandaid on an amputation and if let go long enough, you won't be able to start your truck one day. I would forget the big battery and buy the alternator. You should never rely on the battery to do anything so long as the engine is running.
i have more powerful lights then he can dream of with the 100W am drawing a **** load. just NEVER shut off the truck when they are all on and leave the truck on for a while afterwards to recharge the system with in a year your alt will start killing itself mine is. plan on getting a bigger alt with in a year. it wont be dead but it will be there. mine has just about had it. just a little longer i can milk it.

you will not blow your electrical system dont worry...
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Old 09-14-2005
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I have had no concerns from mine at all, I have 6 100w KC Daylighters. It handles it quite well, I leave the headlights off If I use them as the alternator starts to sing with headlights, fogs and all the others one, otherwise I am still putting out over 13 volts. Who needs headlights when you have 600 watts lighting up the road.
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Old 09-14-2005
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Originally Posted by 04lvl2
I have had no concerns from mine at all, I have 6 100w KC Daylighters. It handles it quite well, I leave the headlights off If I use them as the alternator starts to sing with headlights, fogs and all the others one, otherwise I am still putting out over 13 volts. Who needs headlights when you have 600 watts lighting up the road.
billlll the singing is the fun part....lets you know what your killing haha. and btw you have used your lights like what....25 times if that
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Old 09-14-2005
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Originally Posted by Redneckstone
billlll the singing is the fun part....lets you know what your killing haha. and btw you have used your lights like what....25 times if that
About as much as you have used yours maybe more, I used them alot while in florida as I was on dirt backroads all the time.
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Old 09-14-2005
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Originally Posted by 04lvl2
About as much as you have used yours maybe more, I used them alot while in florida as I was on dirt backroads all the time.
what you mean mine are used so much it isnt funny am waiting for a bulb burn out...
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Old 09-14-2005
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Originally Posted by Redneckstone
what you mean mine are used so much it isnt funny am waiting for a bulb burn out...
Ok now back on topic lol
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  #12  
Old 09-14-2005
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Get a tremor alternator. Arent they 120 Amp?
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Old 09-14-2005
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Quote:
Originally Posted by ScottyEric
Get a tremor alternator. Arent they 120 Amp?
i beleave 110amps. i could be wrong bet that is STILL NOT enough I wouldnt go lower then a 200amp
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