How MobileBattery Works

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

MobileBattery is Portland’s top mobile car battery replacement service. No need to wait at an auto shop—our certified mobile technicians come to you and install a new Group 51R battery right on the spot.

Step 1: Book a Mobile Battery Service

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

Step 2: We Come to You

Our MobileBattery technician will arrive at your location with a fully charged Group 51R battery and all tools needed for a safe and professional installation.

Step 3: Fast Installation

We remove your old battery, clean the terminal connections, and install the new battery. Most installs take 15–30 minutes from start to finish.

Step 4: We Recycle Your Old Battery

We safely dispose of your used battery through local recycling partners, keeping Portland clean and eco-friendly.

Need a Group 51R Battery Replacement in Portland, Oregon?
Book with MobileBattery today and enjoy a hassle-free mobile installation service—delivered and installed wherever you are.
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2 Year Warranty Replacement

Group Size (BCI): 51R; Cold Cranking Amps (CCA): 425 CCA; Cranking Amps (CA): 530 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