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XS Power xMAX 90-DIY

12-Volt Lithium PowerCell Max Wattage (Burst): 20,000 Amp Hours: 90 Max Voltage: 14.8 Volts Weight: 25 lbs. Active Balancer Included M6 Hardware Included 4 Year Warranty In-Cabin Mounting Only Creating a DIY battery bank takes a little math, and a lot of parts – so we did it all for you! Fully pre-built with powerful XS Power Lithium cells and active balancer, the xMAX90-DIY comes in a handsome steel case, and topped off with a custom Plexiglass cover. Four positive and negative terminals are included for easy system hookup, and if you need to expand, check out our TB-608 terminals here ! Made for in-cabin installations. Requires lithium battery charger- See the Li1208, Li1215 and Li1225 here . xMax batteries are not for marine installations. For marine rated batteries, see Lithium Pros. See specifications below. DESCRIPTION 12V Lithium xMax Series DIY Battery Weight Lbs. – 26.90 lb Length – 13.82 in Height – 7.88 in Width – 7.46 in Wattage – 20,000 MAX Amps – 8,300 Energy Wh – 1,188 Ah – 90 Ah Pb Eq* – 360 Polarity – L 4 Year Warranty DOWNLOAD INSTRUCTIONS *Ah Pb Eq is the equivalent amp-hour when compared directly to AGM PROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov
Compare Prices(1 retailer)
Car Audio BargainAuthorized Dealer
Out of stock
$1,099.99
Updated 11/10/2026
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Frequently Asked Questions

What is the XS Power xMAX 90-DIY?

The XS Power xMAX 90-DIY is car audio equipment made by XS Power.

How much does the XS Power xMAX 90-DIY cost?

See the recorded retailer prices in the "Where to Buy" section. Prices and availability can change; confirm both with the retailer before purchasing.

Where can I buy the XS Power xMAX 90-DIY?

The "Where to Buy" section lists retailers we have recorded carrying the XS Power xMAX 90-DIY. Check each listing's availability and confirm warranty coverage with the retailer.

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