Monster Marine Lithium “Cobra”

1300CCA • 100Ah Dual Purpose Bluetooth Cranking Lithium Battery

Model: MML-C12V13JB

Overview

Introducing The Cobra — compact, efficient, and ready to strike.
This 1300CCA 100Ah Dual Purpose Bluetooth Lithium Battery delivers exceptional cranking performance and deep-cycle capacity in a lightweight Group 27 form factor.

Designed to meet and exceed Mercury Marine’s latest specifications, the Cobra is built for modern high-output outboards and precision marine electronics.
Weighing just 25 lbs, it offers incredible starting power, fast recovery, and reliable energy storage for all-day performance.

Backed by years of testing across a wide range of engines and professional tournament use, The Cobra has proven compatibility with:

• Mercury Pro XS 4-Stroke

• Yamaha SHO & 4-Stroke (new and legacy)

• Yamaha HPDI

• Mercury Verado 4-Stroke

• Suzuki 4-Stroke

• Evinrude 2-Stroke

• Mercury Pro XS 2-Stroke

• MerCruiser 4-Stroke

With advanced LiFePO₄ chemistry and a marine-grade Battery Management System (BMS), this battery safely handles voltage spikes and high alternator outputs — delivering the reliability your boat deserves.

Key Features

⚙️ Dual Purpose Design
Combines powerful engine cranking with deep-cycle performance — ideal for both starting and electronics.

⚡ Reliable Cranking Power
Delivers 1300 cold cranking amps (CCA) — easily starts today’s largest 4-stroke and 2-stroke outboards.

🔋 Deep Cycle Endurance
Provides 100Ah of energy storage to power your electronics, sonar, and accessories all day long.

📱 Bluetooth Smart Monitoring
Monitor voltage, charge level, and performance in real time through the MMLithium Bluetooth App.

🧠 Advanced BMS Protection
Marine-optimized Battery Management System handles heavy engine loads, voltage spikes, and rapid alternator charging.

🧭 Lightweight & Compact
At only 25 lbs, the Cobra offers massive output while cutting significant weight from your system.

➕ Expandable Setup
Add a second battery in parallel (positive to positive, negative to negative) for additional 100Ah capacity, or configure in series up to 48V for higher-voltage systems.

⚙️ Specifications