minor voltage drop help??

[SacTownBully84 10+ year member]

check out my system in my sig...i also have a stock batt under hood. i was just wonderin why i still get voltage drop when i thought i had more than enough electrical to back it up when i cranck it full tilt goin down the highway i hit 13-13.4 is this ok or am i just trippin over nothin

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[DammitJames 10+ year member]

check out my system in my sig...i also have a stock batt under hood. i was just wonderin why i still get voltage drop when i thought i had more than enough electrical to back it up when i cranck it full tilt goin down the highway i hit 13-13.4 is this ok or am i just trippin over nothin

13 volts is ok thats above battery voltage which means your alt is still taking the grunt of the work and is supplying enough so that its not robbing your battery power

 

[ascitiesburn69 10+ year member]

Its fine...I wouldn't really worry about it at all. But you could probably use another spv70 in the trunk it you REALLY are worried....Or try a good 55ah+ under hood battery might help out a bit.

 

[Bumpin' Goalie 10+ year member]

Until you hit ~12.7 your alt is still being able to charge the vehicles demands. If you want the voltage to stay higher, either add to your reserves or beef up the source.

 

[outsideshot23 10+ year member]

You are good man. No sweat. When you start dropping below 12 or so its time to worry and it could damage your alternator. Right now you are more then fine... however if you are going to be competeing you dont want drop. Youw ill need some more reserve in the form of batteries or upgrade your alt. but for just bumping around town your good to go

 

[tjjohnson91 10+ year member]

is it bad to have the volts drop to 12.7 when driving down the road?

 

[SacTownBully84 10+ year member]

ok i will try upgradin my batt up front then if that dont make it better imma get another in the trunk thanks 4 the help

 

[supermaxx123 10+ year member]

ok i will try upgradin my batt up front then if that dont make it better imma get another in the trunk thanks 4 the help

upgrading your battery wont do anything. try a batcap

 

[SacTownBully84 10+ year member]

all i have is a stock delco under hood, adding batts in the truck helped y wouldnt one help under hood

 

[supermaxx123 10+ year member]

all i have is a stock delco under hood, adding batts in the truck helped y wouldnt one help under hood

ok, post result.

 

[SacTownBully84 10+ year member]

ok monday i will make a vid of voltage drop now and i will post another vid after i get AGM batt under hood, if batts didnt help then y do alot of people on here that compete have a 200+ amp alt with a batt bank? if batts didnt help then no one would use em? if im wrong then let me know cuz im not a pro i just go with what i see

 

[DammitJames 10+ year member]

ok monday i will make a vid of voltage drop now and i will post another vid after i get AGM batt under hood, if batts didnt help then y do alot of people on here that compete have a 200+ amp alt with a batt bank? if batts didnt help then no one would use em? if im wrong then let me know cuz im not a pro i just go with what i see

what is a batterys resting voltage? it is 12.6 your alt produces voltage more than this unless you have a 16volt battery bank your batterys wont come into play until your voltage reaches theirs the ideal thing is to have a alt that can keep your voltage where it is supposed to be which is ~14v when the voltage drops to 12.6v thats when your batterys come into play

 

[SacTownBully84 10+ year member]

what is a batterys resting voltage? it is 12.6 your alt produces voltage more than this unless you have a 16volt battery bank your batterys wont come into play until your voltage reaches theirs the ideal thing is to have a alt that can keep your voltage where it is supposed to be which is ~14v when the voltage drops to 12.6v thats when your batterys come into play

how much will a 260 amp alt handel for wattage then?

 

[SacTownBully84 10+ year member]

also how do the people @ comps get a alt big enough to handel all that wattage, i see vids of guys burping 5,000 Watts and even more and if i do the math correctly 5000 watts divided by 14 volts thats about 357.....and i aint seen no one on here with a alt doin 350+ at idle cuz no one is movin @ the comps....even steve meade has 1200 amps on his ALTs and thats mathmaticly supports 18,000 watts and thats calculating with his 15volt MLA so where is the other 10k WATTS commin from? i just dont get it i hope sumone can help me thanks

 

[outsideshot23 10+ year member]

burping is different.. burping is just a few seconds... you get tons of batts then they expel all their energy in a burp then you turn them off and run run run ur truck until they recharge.. obviously if your beating down the street your alt cannot catch up.. 260A is a big alt... mine was 140 and the biggest i could get it rebuilt was around 235 A.. lots of people run multiple amplifiers... You cant tell how many watts takes how many amps.. your amp will have an amp rating as to how many amps it needs. Read your booklet