so i have no idea where to put this on the boards but i have a question about a second battery

i have a 2003 bmw 525i sedan and have found out i need a second battery before i blow another alternator

is it ok to put it near the sub box or will the vibration be bad for it?

i was thinking an optima yellow top battery

any suggestions?

Thanks

Patrick

you should be fine, but i would take a look at maybe a kinetik battery instead of a yellow top

you should be fine, but i would take a look at maybe a kinetik battery instead of a yellow top

so like the hc16v?

you should be fine, but i would take a look at maybe a kinetik battery instead of a yellow top

so like the hc16v?

Are you running a 16 volt system with that battery?

Kinetiks are great but what is your budget for another battery? Deka 9A31 is a great batt at a good price.

I think the batt would be ok next to the box. Its not the box vibrating anyway. The driver makes everything else around the box vibrate.

you should be fine, but i would take a look at maybe a kinetik battery instead of a yellow top

so like the hc16v?

Are you running a 16 volt system with that battery?

Kinetiks are great but what is your budget for another battery? Deka 9A31 is a great batt at a good price.

I think the batt would be ok next to the box. Its not the box vibrating anyway. The driver makes everything else around the box vibrate.

no standard 12 volt ( i guess....14 with alt.)

i just need a second battery b/c everything dims, even my headlights

You need to get a 12volt battery, not a 16volt battery.

You need to get a 12volt battery, not a 16volt battery.

yea i realized that part # was for the 16v

what size do i need though

You need to get a 12volt battery, not a 16volt battery.

yea i realized that part # was for the 16v

what size do i need though

Nobody can tell you if you dont tell us more info (what do you need the battery for, what equipment is in the car, have you done the big 3 yet-that will help). Read new member rules before posting again so people can help you better and it will make this topic useful because right now its useless.

Sorry I didn't specify...my original question didn't need it

ok so I'm gonna have a fusion 3000w amp and an fi bl12 dual 2 ohm sub

I have stock hu and no other amps besides the stock one

Sorry I didn't specify...my original question didn't need it

ok so I'm gonna have a fusion 3000w amp and an fi bl12 dual 2 ohm sub

I have stock hu and no other amps besides the stock one

A Kinetik HC1400 or 1800, anything battery with around 80AH.

Sorry I didn't specify...my original question didn't need it

ok so I'm gonna have a fusion 3000w amp and an fi bl12 dual 2 ohm sub

I have stock hu and no other amps besides the stock one

A Kinetik HC1400 or 1800, anything battery with around 80AH.

just curious, how did you figure out which one i needed, what calculation or specs did you look at

Usually you take half the rating of amps your amp has, and if Im correct it has 4 x 40A = 160A / 2 = 80A or better.

Usually you take half the rating of amps your amp has, and if Im correct it has 4 x 40A = 160A / 2 = 80A or better.

ok cool

so what size fuse do i need

I'd take deka if your on a budget or powermaster if you got the money.

so what about the kinetiks?

Kinetiks are great batts,but XS Power batts have just little more to them.

Have you replaced your under hood battery? have you done the Big 3?

And don't BMW's use HID's?

deka, xs power and kinetiks are all good batteries and you cant go wrong with either one.

Kinetiks are great batts,but XS Power batts have just little more to them.

Have you replaced your under hood battery? have you done the Big 3?

And don't BMW's use HID's?

yes the battery has been recently replaced, and on BMWs they are in the trunk, just to let you know (not trying to be a smartass)

and i am working on the big 3

and yes most do, but we didnt get them with the car (they were $1200) i just added them aftermarket for $300