Lithium Bank sized or stacked as a XS Power D7500?

[TheRamSonus]

I've got two XS D7500 batteries and am getting a voltage drop on some of the bigger bass hits. I have a 370 amp mechman alternator, zero gauge, professionally done. It generally runs around 14.7 and can drop to low 13's but and occasional 12.9 on the deep stuff. Again, on the bigger bass, it's perfectly fine the rest of the time. I do play some rebassed stuff.

I'm not 100% sure if I should be concerned about that kind of drop but do know that it couldn't hurt to go bigger on the batteries. The problem I have is the location. It's sized to the D7500 and moving them would be even more expensive, labor wise. Size wise, the D7500 is,
Length – 13.35 in
Height – 10.91in
Width – 6.81 in

I can go up in height, but that's about it. Is there something that would be more powerful in roughly the same size package? DYI or an manufacturer?

Click to read more...

 

[Cee]

What components and wattage are you running? Those two batteries with a ho alternator you shouldn't be having any voltage drop issues. Are the lower voltages happening with engine running?
Just a note. Mechman alternators while fine and pretty, almost never have the rated amps they claim.

Need to know what you're powering.

 

[mahc 10+ year member]

Your power is fine. If your were in the 11s that would be a concern. Adding a super cap bank is what I'd do to stabilize.

 

[Cee]

Your power is fine. If your were in the 11s that would be a concern. Adding a super cap bank is what I'd do to stabilize.

You don't even know what they're running or any details.

12.9 is fine for short periods but man you give generic responses.

 

[mahc 10+ year member]

You don't even know what they're running or any details.

12.9 is fine for short periods but man you give generic responses.

Working on my post count, boy.

 

[Cee]

Working on my post count, boy.

Ya, not surprising. Here for stats not quality advice.

 

[mahc 10+ year member]

Ya, not surprising. Here for stats not quality advice.

Not a nobody tho.

 

[TheRamSonus]

What components and wattage are you running? Those two batteries with a ho alternator you shouldn't be having any voltage drop issues. Are the lower voltages happening with engine running?
Just a note. Mechman alternators while fine and pretty, almost never have the rated amps they claim.

Need to know what you're powering.

I'm running 4 Kicker Warhorse 3600amps. They're pushing 4 Kicker Solo X 15's.

Your power is fine. If your were in the 11s that would be a concern. Adding a super cap bank is what I'd do to stabilize.

I'll look up super cap bank. I'm just seeing if something is better and available in that size.

 

[Popwarhomie 5,000+ posts]

Lithium is the way. I had 5 G31s in a previous build and a tiny 80ah yinlong lithium bank is my last build and the lithium is night and day more powerful, wayyy lighter, and wayyy smaller. My 80ah lithium with a 320 alt would only drop 0.1-0.2 volts while driving running 4 12s the same wattage as your Solo X 15s.

 

[TheRamSonus]

Lithium is the way. I had 5 G31s in a previous build and a tiny 80ah yinlong lithium bank is my last build and the lithium is night and day more powerful, wayyy lighter, and wayyy smaller. My 80ah lithium with a 320 alt would only drop 0.1-0.2 volts while driving running 4 12s the same wattage as your Solo X 15s.

That's how I'm leaning. I just wasn't sure if someone made, or could make, one with the dimensions I need or if I'm going to have to switch everything up for a new placement. I'd rather do direct swap if possible.