How MobileBattery Works

Get a Group 51 Car Battery Delivered and Installed—Wherever You Are in Portland, Oregon

MobileBattery is Portland’s go-to mobile car battery replacement service. No more waiting at an auto shop—our certified technicians come to your location and install a brand-new Group 51 battery right on the spot.

Step 1: Book a Mobile Battery Service

Schedule your appointment online or by phone. Choose your preferred date, time, and location—whether you're at home, at work, or on the side of the road in Portland, OR.

Step 2: We Come to You

A MobileBattery technician will arrive at your location with a fully charged Group 51 battery and all tools necessary for a clean and professional installation.

Step 3: Fast Installation

We remove your old battery, clean the terminal connections, and install your new Group 51 battery. Most installs take just 15–30 minutes.

Step 4: We Recycle Your Old Battery

Your used battery is collected and safely disposed of through our local recycling partners—helping keep Portland clean and eco-friendly.

Need a Group 51 Battery Replacement in Portland, Oregon?
Book your mobile battery service with MobileBattery today and enjoy fast, convenient, and professional installation—wherever you are.
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2 Year Warranty Replacement

Group Size (BCI): 51; Cold Cranking Amps (CCA): 500 CCA; Cranking Amps (CA): 625 CA; Voltage (V): 12 Volt; Length (in): 9-5/16 Inch; Width (in): 5 Inch; Height (in): 8-13/16 Inch;

Super Start Premium Batteries feature full frame grids and premium envelope separators to provide extended service and improve performance. They have tear and puncture resistant envelope separators which completely protect the plates. The full frame plate surface withstands severe service demands. Solid direct current welds extend performance and the efficiency of the battery's current transfer. Enhanced crystallization of the active material extends performance levels over time. Revolutionary paste adhesion techniques deliver better performance.

• High starting power meets or exceeds original equipment specifications
• Patented Cell Connector Design Increases Current Flow
• Maximum Capacity Electrolyte Reservoirs
• Deep Pocket Plate Separators Eliminates Shorting
• Robust separators are stronger and more stable leading to fewer battery failures due to shorts
• Heavy duty strap and weld system features a high-grain top alloy and the industry's best inter-cell weld virtually eliminating corrosion
• Best-in-Class Vent System engineered to vent gases in a controlled manner and ensures gases vent away from terminals reducing leakage and corrosion
• Tough polypropylene container