Second battery

[Jrock1732]

What's a good second battery running a 7500 watt op amp

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[spokey9 5,000+ posts]

What's a good second battery running a 7500 watt op amp

What size alternator you got?

 

[Jrock1732]

What size alternator you got?

145 amp

 

[spokey9 5,000+ posts]

145 amp

I think you're gonna need a 250 amp minimum to support that amp let alone charge the batteries

 

[Jrock1732]

I think you're gonna need a 250 amp minimum to support that amp let alone charge the batteries

Ok so I upgrade to 250+ alternator what's a good battery for rear after that also should I change any wire for alternator

 

[spokey9 5,000+ posts]

Glowe voltage batteries are legit. I'd do 2 runs of 1/0 ofc between batteries

 

[Doxquzme Premium Member]

GlowVoltage Series 1 or 2. Support up to 8K on your stock alt.

Batteries - Glowe Voltage

I run a parallel +/- 2/0 gauge Ancor marine grade tinned OFC cables from the first to the 2nd battery.

25' $129 Black

https://www.amazon.com/dp/B000NI5C8Y/?tag=caraudiocom-20

25' Red $129

https://www.amazon.com/dp/B000NI3BKU/?tag=caraudiocom-20