Does this upgrade sound right

[Beastums 10+ year member]

heres the situation, i have 2 Obsidian audio 12 D2s on a hifonics BRZ1700.1 and 4 vibe black air 6.5 components running off a hifonics ZRX1000.4 and stock alt and battery with the big 3 of 0 gauge. ive had light dimming issues for a while but i was too broke to do anything about it yet so i just didnt push it too much but its time to fix it. after doing some digging around i was thinking about getting another battery to help solve this issue. i was looking at the XS Power D3100 and i dont know about getting an isolator, i keep seeing people going back and forth on the idea of getting so what do you peoples think about this, should it work?

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[NASTY08IMPALA 5,000+ posts]

Get the xs 3100 and the biggest batt you can fit under the hood...your battery bank is only as stong as your weakest batt

 

[Kangaroux 5,000+ posts]

Get the xs 3100 and the biggest batt you can fit under the hood...your battery bank is only as stong as your weakest batt

Uh, not true...the only time when this is sorta true is if your battery is practically dead and it's draining all of your other batteries. You can run a stock batt and then add on a battery in the rear and you'll definitely notice a difference.

 

[NASTY08IMPALA 5,000+ posts]

I just noticed a huge difference when adding the deka over my stock

 

[NASTY08IMPALA 5,000+ posts]

But yes a xs3100 in back will def help cant go wrong with more batts...just think about upgrading under the hood too

 

[Beastums 10+ year member]

so just add the battery? dont mess with an isolator? also how do i wire that up, just run (+) to (+) and (-) to (-) on each battery?

 

[rebelfromva 10+ year member]

Wire pos to pos Nd neg to neg