XS Power xMAX 45 12V LiFePO4 Lithium Car Audio Battery - 45Ah, 5,000W Music, 10,000W Burst SPL
The XS Power xMAX 45 is a 12-volt LiFePO4 lithium battery with 45 amp hours of storage and 5,000 watts of continuous music power on tap as a standalone battery. Paired with a 200A alternator it supports 7,000 watts, with burst SPL wattage up to 10,000.
At 14.8 lbs it is very light for its output, with a strong power-to-weight ratio, high shock resistance and minimal voltage sag compared with traditional AGM batteries. It charges fast and can deliver up to 4,100 amps.
The xMAX 45 is made for in-cabin installation and is not intended for marine use. A lithium battery charger is required.
HIGHLIGHTS:
- 12V LiFePO4 chemistry
- 45 Ah capacity, 4,100 max amps
- 5,000W standalone music wattage, 7,000W with a 200A alternator
- 10,000W burst SPL wattage
- 14.8 lbs, made for in-cabin installs
- Four-year warranty
GREAT FOR:
- High-performance audio systems
- Racing and weight-conscious builds
- Replacing heavier AGM batteries
SPECIFICATIONS:
| SERIES | xMAX |
| VOLTAGE | 12V |
| CHEMISTRY | LiFePO4 |
| AMP HOURS | 45 Ah |
| MAX AMPS | 4,100 |
| STANDALONE WATTAGE (MUSIC) | 5,000 Watts |
| WATTAGE W/ 200A ALTERNATOR | 7,000 Watts |
| BURST SPL WATTAGE | 10,000 Watts |
| WEIGHT | 14.8 lbs |
| CHARGER | Lithium battery charger required |
| INSTALLATION | In-cabin; not for marine use |
| WARRANTY | 4 Years |
| SOLD AS | Each |
| BRAND | XS Power |
Free shipping is available within the 48 U.S. states. Orders placed before 11 PM ET are typically processed the next business day and arrive within 5–8 business days. Tracking information will be provided as soon as your order ships.
Need to make a change to your order? Contact us within 24 hours of purchase, and we'll be happy to help. Please note that orders already processed for shipment cannot be canceled.
1-Year Limited Warranty: As an authorized dealer, we provide a 1-year limited warranty covering manufacturer defects in materials and workmanship under normal use. The warranty does not cover physical damage, misuse, improper installation, or normal wear and tear.
Customer Support : 9:00 am to 5:00 pm
Email: info@eliteautogear.com
For technical support questions, contact us at cs@eliteautogear.com
Phone: (877)-215-8187
From Our Community
Real Installs. Real Sound.
See what enthusiasts are saying — straight from their builds
Electrical That Keeps Up
Power to Run the System You Built
Stable Voltage Under Load
Holds voltage when the system pulls hard, so lights stay steady and amplifiers do not cut out.
Built for Audio Draw
High-output designs are made for heavy current and repeated deep discharge, unlike a standard starting battery.
Size It to the System
Match capacity and charging output to the total draw of your amplifiers. The specs list what this unit delivers.
Safe Installation
Correct fusing, cable gauge and secure mounting are essential on any high-current upgrade.
