VMAX 36V 50Ah Heated Lithium Battery with Bluetooth – Group 31

Product Description

36V Heated Group 31 Lithium Battery with Bluetooth

The VMAX LFP3650MBH is a 36V 50Ah lithium deep cycle battery with Bluetooth that's engineered for trolling motors, off-grid solar, and 36 volt energy-storage systems that require high capacity and dependable power. Designed with an internal self-heating system for safe cold weather charging, plus a built-in Battery Management System (BMS) for protection and long service life. Integrated Bluetooth battery monitoring and a light 27 pound design makes it a perfect drop-in lithium upgrade over heavier AGM or flooded Group 31 batteries. IP67 waterproof rating, fast charging, and long cycle life make this a user friendly and versatile lithium upgrade.

Features & Benefits

• Bluetooth – Realtime monitoring of battery performance in the VMAX App.
• Self-Heating – Enables safe charging below 32°F (0°C) for year-round use.
• 50Ah Capacity – Long run times for trolling motors and 36 volt energy storage banks.
• Built-In BMS Protection – Over/under-voltage, over-current, and temperature protections.
• Light Weight – Easier handling and drop-in replacement for many Group 31 applications.
• Fast, Efficient Charging – Optimized for LiFePO4 smart chargers and solar charge controllers.
• 7 Year Warranty – Backed by VMAX's industry leading customer service.

Why Choose VMAX Lithium Batteries?

The VMAX LFP series pairs high-grade LiFePO4 cells with an advanced Battery Management System (BMS) to deliver stable, maintenance-free deep-cycle power—year after year. Their integrated self-heating system maintains a charge acceptable internal temperature in freezing conditions, making winter operation practical for RVs, boaters, and off-grid users. The standardized group sizes and M8 terminals simplify drop-in lithium upgrades where AGM or flooded batteries were previously used. With fast charging, high discharge capability and support for series & parallel banks, they scale easily from a single house battery to multi-battery energy storage banks. Backed by a 7-Year Warranty for reliable power and excellent long-term value.