Does anybody know what the normal battery amps run at with oly air intake and exhaust? How bout for those mods with an Edge EZ?

 

What are you asking?? Amps at idle with no acceries on might be 5-10, with everything on, around 30, those mods would not affect alt. output.

 

The amount of amps that your alternator can throw is a function of the engine speed alone. The regulator for the alternator will limit the current if the full capacity of the alternator is not required(it almost never is). When you first start up, you will throw more amps to recharge the batteries from starting and then once the batteries are charged, you only have to really power the electrical components on the truck.

The alternator is belt driven and therefore only sense engine rpms. Modifying the engine makes no difference to it unless you change the rpm range significantly.

 

Well i had a few tests done over the hole truck today just to make sure everythings on the up n up and the guy said on my battery test i should normally be pushing 1000 cca, (not sure if thats at idle or just truck off and testing) in the end he said im only pushing 620. and i need a new battery. So im wondering first, would that 1000 rating be split between both batterys, (normal 500 from one, but other is going bad and only puttin out 120?) or second, if he's just trying to get me to buy a new battery. Its a new place and i dont know how much to belive them on problems and answers yet. i would have asked him the split bat power question but was already late for work :/

 

They should be load testing the batteries when they are alone, not tied together or tied into the electrical system of the truck. 1000 CCA is a lot. My group 31's are less than that, although regular cranking amps is 1200 or so. If they are testing them together, find another place to do it. If one battery is dead/weak, replace them both, as the weak battery will bring down the good battery.

 

The current that you are talking about measuring is how much the batteries can produce when trying to start the truck. When new, most batteries for these truck are between 800 and 1000cca apiece. Since they are in parallel, if you connections are good, you will get double that.

What Tate said about battery testing is correct.

Ignore my post above, I thought that you were talking about how much current would be flowing when the truck is running and it is flowing into the battery then because it is recharging it. CCA is related to starting only.

 

"Pushing" xxx CCA makes no sense. CCA (cold cranking amps) is a manufacturer's measure of battery capacity for a short period at 0 F. It almost sounds as if the battery guy was talking about your trucks charging capacity in CCAs. If so, you need to find another battery person.

I believe a number of (expensive) battery testers claim to be able to measure CCA, or CCA range, but do it by computational means. However, if it isn't actually done on a cold soaked battery at 0 F, it is at best a scientific guess.

 

you can get a real nice 500 amp carbon pile load tester at harbor freight for 50 bucks and test your own batteries like a pro. i just bought one and it works good. you load test batteries at 1/2 the cold cranking amps for 15 seconds and then just read the meters.