1300CCA 120Ah Dual Purpose Bluetooth Cranking Lithium “Scorpion” – MML-13C120B

Built to Start. Engineered to Endure. Trusted Everywhere.

The MML-13C120B “Scorpion” is a 1300CCA 120Ah Dual Purpose Bluetooth Cranking Lithium Battery that exceeds Mercury Engines' latest spec bulletin—making it the go-to choice for modern, high-performance marine setups.

Real-World Tested. Engineered for Reliability.

Wondering if it works with your engine? Absolutely.
After years of testing across countless setups—from family fishing boats to pro tournament rigs—the Scorpion has proven its unmatched dependability with:

• Mercury Pro XS 4-Stroke & 2-Stroke

• Yamaha 4-Stroke & SHO (all models)

• Yamaha HPDI

• Mercury Verado 4-Stroke

• Suzuki 4-Stroke

• Evinrude 2-Stroke

• Mercruiser 4-Stroke

Over a year of testing. Zero failures. Maximum confidence.

Key Performance Features:

• 1300 Cold Cranking Amps (CCA)
  Delivers strong, instant starts in all weather conditions

• 120Ah Dual Purpose Capacity
  Cranks your engine and powers electronics with ease

• Advanced Built-in BMS (Battery Management System)
  Protects against voltage spikes and ensures long-term stability

• Bluetooth Monitoring (iOS & Android)
  View real-time battery status and diagnostics from your phone

• Group 31 Form Factor – Weighs Only 26 lbs
  Lightweight and easy to install compared to AGM/SLA batteries

• Parallel & Series Compatible

  • Parallel: Double capacity to 240Ah

  • Series: Up to 48V systems supported (12V, 24V, 36V, 48V)

Installation:

Plug-and-play setup. Just connect your engine’s positive and negative cables to the battery’s terminals, and you’re ready to go.

Suitable For:

• Starting all 12V marine engines (2-stroke & 4-stroke)

• Powering 12V electronics

• Trolling motors (12V, 24V, 36V systems)

• Lithium upgrade for Group 31 SLA/AGM batteries

• 36V & 48V Golf Carts (in series)

• Any high-performance marine or outdoor power setup

Compatible Chargers (AGM Mode Required):

• Minn Kota (Precision & Digital)

• Dual Pro

• NOCO

• Real Pro

• Pro Sport

Specification

Weight
25 lbs (11.8Kg). 60% lighter than 1 SLA battery!

CCA
1300 cold cranking amps

Size Dimensions
L 13 in (330mm) x W 6.8in (173mm) x H 8.8 in (225mm)

Voltage
12.8V

Energy
1280 Watts (Wh)

Amp-Hours
120Ah

Charge Volts
14.6v

Continuous Amps both charge and discharge 
200A max

Recommended 100A or less  

Terminals
F12 terminals (post that screw in).