STM Lightweight PC925 Battery Kit for 2017-2020 Audi RS3

STM Tuned Inc.



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The STM Odyssey PC925 Battery Kit for Audi RS3 8V is perfect for street cars and fits cleanly in the stock location dropping 25 pounds from the rear of the car. Includes everything needed for install and looks great with a durable, black powdercoated base and anodized STM tie-down. Includes a protective silicone guard to keep your trunk safe from scratching.

Vehicle Fitment:
2017-2020 Audi RS3 8V

Stock Battery Weight: 50.90 pounds
STM-BATK-RS3-PC925 STM Battery Kit with Odyssey PC925 and Terminals 25.00 pounds
25.90 lighter than stock
STM-BATK-RS3 STM Battery Tray (Battery is not included)
• Quick and Easy Install
• Fits in the Stock Location
• Black Anodized STM Tie Down
• Durable Black Powdercoat
• Lightweight Aluminum Base
• Protective Silicone Guard

Performance Notes and Warranty:
STM does not warranty batteries. We offer the STM Lifetime Guarantee on the STM Battery Tray, but we cannot warranty the batteries themselves and any attempt we have made to have them warrantied by the manufacturer has been denied. The typical life we get from one of these batteries varies from 2 to 10 years. Expect to treat this battery as a maintenance item - once it's done, just get a new one.

For a typical 300-600 HP street car, it's fine to sit for 2 weeks to a month, drive and race on the weekends or drive everyday in nice temperatures (40-90°). If it sits longer than 3 weeks or if it's in freezing temps, we recommend keeping the charger handy. This battery will handle normal audio systems, a subwoofer and mild accessories like lighting or alarms. It's probably not suited for additional amps or more than one sub.

We have not encountered any performance issues with cranking. These 925 batteries are significantly more powerful than the smaller 680 and honestly these make a great lightweight option for a daily driven street car. Read more about the battery:
Odyssey PC925 Battery

STM Battery Tray Includes:
(1) STM Black Battery Tray with Silicone Guard
(1) STM Black Anodized Tie-Down Bracket
(1) Odyssey PC925 Battery (PC925)
(1) Positive and Negative Battery Terminals (3217-0006)
(1) Long Mounting Bracket
(1) Short Mounting Bracket
(2) 1/4-20 Stainless Wing Nuts
(2) M6 Stainless Flat Washers

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Customer Reviews

Based on 1 review
Jon DesJardins (Phoenix, AZ, US)

This is a great affordable option in comparison to the other $1,000 dollar options and saves weight like it’s supposed to. I daily my car and it’s held up great here in the AZ heat where the others wouldn’t have lasted. Highly recommend this setup for your race car or daily performance set-up

Cancer and Reproductive Harm