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XS Power D3400R (Reverse Polarity) thumbnail image
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perfect fit for 2011 Mazda 3

I received this as a birthday gift from my girlfriend, this battery fits perfect in the mazda 3. The only thing is that this is 1 inch shorter than stock, so I had to put a block of wood under the battery bar to secure the battery.
This battery replaced a Duralast Gold battery. I have a Hifonics BRE 1700.1D powering 2 RE Audio SEX15d4 in a ported box, and my factory bose amp and speakers for the interiors all controlled by a Pioneer AVH X4800BHS. I have big 3 and 1/0 cable throughout.
Before this battery, my voltage would drop to 11.6, my factory HID would almost shut off. I received the battery reading 12.8 volts, topped it off with an Agm charger and installed the battery. And WOW. my interior speakers sound cleaner, the subs hit so hard now. Voltage @ idle with old battery was 13.8. now it sits @ 14.0-14.2. Lights do not dim anymore, not even a flicker @ full tilt with air conditioning and headlights on. The voltage drops to 12.5 now with everything running and volume up. I Highly Recommend this battery and don't forget to get battery posts as these only come with screws.

By Fenwick on September 26, 2016

5 found this helpful


Excellent Battery for high watt systems

The battery worked perfectly for my complete NVX install. Total RMS for my system is north of 4000 watts. This battery handles the power needs with ease. I had everything installed by Sonic Electronix.

By David on August 28, 2025 Checkmark Icon Verified purchase

1 found this helpful


By Rohan on March 6, 2025 Checkmark Icon Verified purchase

1 found this helpful


By Diaunte on January 6, 2025 Checkmark Icon Verified purchase

1 found this helpful


It's a battery

Exactly what I needed and it does it's job well. Now I need to install the HO Alt to give it the help it needs to fully do its job to its potential

By Marcus on April 14, 2026 Checkmark Icon Verified purchase


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