PRESS RELEASE: Due to the unprecedented amount of orders Down4sound has received over the past few weeks, we have encountered some unforeseen delays as a result of depleted stock. Please be assured that the entire Down4sound team is working tirelessly to get every order processed and shipped as fast as possible. We value every single one of our customers and greatly appreciate your patience and understanding of the situation we are facing. Thank you all and be blessed.

XS POWER | D3400R | 2500W / 4000W ( Reverse Polarity)

MSRP: $459.99
Price: $339.99
(You save $120.00 )
(9 reviews) Write a Review


12V BCI Group 34 AGM Battery, Max Amps 3,300A, CA: 1000 Ah: 65, 2500W / 4000W
Weight Lbs. – 49.4
Weight Kgs. – 22.41

Length – 10.24 in
Height – 7.2 in
Width – 6.75 in

MAX Amps – 3300
CA – 1000A
RC – 135min.
Ah – 65

9 Reviews

  • 5
    XS Power batteries deliver on power

    Posted by Garret Chong on May 15th 2020

    XS Power batteries are not cheap but when you have invested over 500$ in amps the last thing you want to happen is to try your amp during to a lack of power. That's why you spend the money to buy the best battery on the market. My lights don't dim and I'm getting a constant 14.4 volts to the amp. The bass is a little to strong now. I need to sound deaden the back of my car now so everything doesn't rattle. I'm also going to have to lock tight my license plate cause it fell off due to the bass hitting so hard. XS Power really delivers when it counts

  • 5
    Xs D3400 batteries

    Posted by Rosoce Hammond on Oct 10th 2019


  • 5
    D4s is the best

    Posted by Pablo valero on Jun 12th 2019

    First would like to say that down for sound is the absolute best place to get aduio equipment from first class customer service. Second this battery is a beast far far better than a yellow top

  • 5
    Xs d3400r

    Posted by shawn Rance on May 27th 2019

    Where to start the shipping was lightning fast d4s has outstanding customer service and communication!!!! This battery is a beast I’m already noticing better more staple voltage thanks again !!!!

  • 5
    Great battery

    Posted by Cj Toscano on Dec 8th 2018

    Fast shipping, great battery. Down4sound is definitely the best place to shop for your car audio needs.

  • 5
    money well spent

    Posted by slips on Jul 3rd 2018

    Great battery. Works perfect super strong, can slam some bass with out voltage drop. Although I am now considering to add a second battery for a second amp. So if you are looking to do some extreme upgrades probably go for a stronger battery. Yes super happy with this battery.

  • 5
    beast battery

    Posted by Adam garza on Mar 10th 2018

    first off gotta say jp surprised me with the insanely fast shipping. I didn't expect it to be at my door that quick. the battery is freaking awesome. I have no voltage drop at all and I can run my system at full tilt and no problem. gotta give it to jp he is the xs power master. thanks for the awesome customer service and sick fast shipping

  • 5
    Down4Sound Is The Best.!

    Posted by Jason Ellison on Jun 13th 2017

    Needed To Upgrade From My Stock Batteries, My Sound Sytem Is Getting Bigger And Bigger . I Follow All J.p Videos On Youtube So Something To Me To Try The Xs Power Battery .. When I Tell You This 1 Battery Does More Than The 2 Stock Batteries I Had Everything I Expected .. On Top Of That The Shipping Was Extra Fast I Thought It Would At Least Take A Week . My Battery Came To Fast .. Plan On Buying 3 More To Complete My Upgrade. No More Dimming Head Lights For Me . Thanks Jp

  • 5
    Quality power

    Posted by Dan Parda on May 10th 2016

    I was hesitant to order a battery online but should have known better. JP sent it along asap and i no longer have headlights dimming when my bass hits. Next step is big 3 upgrade with some down4sound silver tinned wires.