Will this kit handle the current from a 140 amp alternator? Thank you in advance!
1436769
I have one of this in a silverado pick up and it can handle the alternator output current.
1436770
I will handle that for about 5 to 8 hours and not more than that on two batteries. I have a koolatron cooler hooked to mine and it last about 8 hours
568494
I'm not sure about it,but the amps,rpm and voltage are very close,it might work.Sorry.
287699
It has a max of 30 amps and car alternators are more then that and the alternator would have its own regulator so to speak so I would not recommend it either. They would conflict.Mike
61636
Hi, 1999 GMC Yukon 5.7 v8 has two kind alternator both are exchangable. except plug is different don't know which one you have. this will fit , if plug is different I can provide you plug also but you have 2700 watt, by book each 1000 watt you need 100 amp alternator plus your original alternator 130 you are looking around 400 amp alternator with this alternator you need two batteries( add another battery in the trunk) 0 gauge wire and capacitor to make it work if you don't it will not handle your load. voltage will drop
1131198
No, the other answers are wrong. It does not test not alternator amperage. For that, you would need an ammeter. Use a DC clamp ammeter so you won't have to break the circuit. What the BA7 does check is the alternator voltage. You can also do that with any accurate voltmeter. The proper alternator voltage when the car is running is 13.5v to 14.2v across the battery.
2171171
I purchased two of these and they both burned out in just a few days at the rated voltage. So I don't have them any more. I'd try to get a tech sheet and find the resistance of the control circuit and divide the applied voltage by it (If you have a 12 volt battery and the resistance is 1000 ohms you would get 0.012 amps, or 12mA, though you should check the voltage of your battery with a meter (Measuring th evoltage of the battery will get the alternator voltage too) it's probably closer to 14).
1843413
It dose explain it but not well. all you do is connect positive and negative, start your car and check the voltage. if you have between 13.5 and 14.8 you should be good. although this can be done with a volt meter, for an accurate test of your alternator, you need an amp meter.
1674784
I remember researching this before. The manufacturer won't say exactly. Read the forums on nPower. I might be able to figure it out with my multimeter when I get home. I thought theoretically, you could figure it out with an equation. it was enough to start my v6 2.1L engine. The inverter to ac isn't much. If my calc is right, 400W at 120V is only 3.3A on AC, but you can't expect much from a 12v battery. I thought dc was supposed to be infiinite, but I suppose you're looking for cranking amps. Overall, I was very pleased with how the nPower performed. I went a couple of months before finally diagnosing my car battery. The nPower got a fairly large engine through a cold Wisconsin winter with a bad cell in a relatively small car battery.
1881786
If your are referring to two different sized amplifiers then it won't know the difference. If you are referring to two different sized batteries then It will still be fine. If you are referring to two alternators with different charge rates just make sure you get a relay/isolator that is large enough to cover all the amperage. (70 + 185 = 255 amps)
425229
Hi There I run the inverter off of a 27D size 12 volt battery on my boat that is charged from a 120 amp alternator off of the motor.
1714713
And to add to Clark's formula. If your alternator is up to 15 volts. That is 208 amps for 2000 watts of inverter power. Note: Your alternator better be a huge one to handle those loads.Rule of thumb for inverters. It will draw 1 amp for ever 10 watts. so 2000 watts is 200 amps. If your inverter has continuous rating of 2000 watts with a surge of 4000 you need 400 amp fuse and wire like 2/0 gauge OFC (Oxygen Free Copper). I would suggest staying away from the copper clad (CCA) cables at these power levels.
1765923
I used it on a 2006 Dodge Caravan with a Denso 136 amp alternator and it worked perfectly.
355885
I don't think so. This is a small battery maintainer with mill a amp rating. You need something that would have a large amp reading. This is not for that job.
1978216
I'm using an 80 amp. I have been since i got it. I was going to bump to a 100 if it ever died, but, it never did. I doubt you would ever need more than 100. Technically it depends on your set up and how much power you can get out of your alternator. Mine doesn't have enough free power to provide to the amp to require more. I have 3 12" CVR's in a 2006 lancer running off one of these amps.
1928925
I 've got a 6500 wt. generator and this works fine. That's what is recomended for your generator.
964461
Yes, I use mine for that on occasion. Be careful when the car is running, the alternator could pop the fuse or drain the 9V battery in the multimeter rather fast. There's not a whole lot you can learn about the battery with a multimeter, but they are quite useful for testing devices in cars/trucks. e.g. you can test your coil packs using the Ohm-Meter (resistance) functionality.
204621
Depends on the amperages. This unit will handle up to 10 Amps of running motor load.