VMAX 12V 120Ah Heated Lithium Battery with Bluetooth

Product Description

VMAX LFP12120MBH Self-Heated Lithium Bluetooth Battery

The VMAX LFP12120MBH is a 12V 120Ah LiFePO4 deep-cycle Bluetooth battery in a Group 31 footprint, engineered for marine, RV, off-grid solar and energy-storage systems that demand 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 light 29 lb design makes it a perfect drop-in lithium upgrade over heavier AGM or flooded batteries. IP67 waterproof rating, fast charging, and long cycle life make this a user friendly and versatile power source.

LFP12120MBH Features:

• Self-Heating – Enables safe charging below 32°F (0°C) for year-round use
• 120Ah Capacity – Long run times for trolling motors, RV house loads and off-grid systems
• Built-In BMS Protection – Over/under-voltage, over-current, short-circuit and temperature protections
• Light Weight – Easier handling and drop-in replacement for many Group 31 VRLA/AGM applications
• Fast, Efficient Charging – Optimized for LiFePO4 smart chargers and solar charge controllers
• High Discharge Capability – Supports demanding inverters and DC loads up to 150 continuous amps
• Scalable System Design – Wire up to 4 in series (24/36/48V) or 4 in parallel (up to 280Ah) for larger banks
• 7 Year Warranty – Backed by VMAX's industry leading customer service

Why Choose the LFP12120MBH?

Part of the trusted VMAX LFP series, the LFP12120MBH pairs high-grade LiFePO4 cells with an advanced BMS to deliver stable, maintenance-free deep-cycle power. Its integrated self-heating system maintains charge acceptance in freezing conditions, making winter operation practical for RVs, boaters, and off-grid users. The Group 31 case 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, it scales easily from a single house battery to multi-battery energy storage. Backed by a 7-year pro-rated warranty and a 10-year design life for reliable power and long-term value.

Applications:

• Marine: Trolling Motors, House Power, Fish Finders
• RV & Camper Vans: House Batteries, Inverters, 12V Appliances
• Off-Grid Solar & ESS: Solar Battery Banks, Hybrid Inverters, Cabin Power Systems
• Backup Power & UPS: Battery Backup Units, Telecom/Networking UPS, Inverter Systems
• Deep-Cycle Only – Not intended for engine starting applications

VMAX Bluetooth Battery Monitoring

View real-time battery status with the VMAXTANKS app – no external hardware or Wi-Fi needed; it's built-in. Enable custom low-battery alerts to stay informed.

Quickly and Easily Check:

• Voltage
• Amperage In/Out
• Estimated Time to Full Charge at Current Charge Rate
• Cell Balancing Monitor
• Temperature
• Battery Status
• Battery Cycles

LFP12120MBH Group 31 Cross Reference:

Group 31 lead-acid batteries: 1031MF/PMF, 1131MF/PMF, 1231MF/PMF, 31‑PC2150S, 7T31, 7T31P, 8A31DTM, 8G31, 8G31DTM, CT2500, DC31DT, DP31CS, DP31DT, DURHR12-430C/FR-A, HEPPC2150T-M, MB137-120, MR137-120, NSB‑AGM31, ODX‑AGM31, SLI31AGM, SLI31AGMDPM, SLI31CS, SLI31DTMAGMDC, SLI31DP, SLI31MDC/MDCP, SLI31PA/SA, SLI31PHP/SHP, SLR125, XCA31-1400, XTR31-135.

Group 31 lithium batteries: BB10012, DL12-320, PP12-150,

Important: Always confirm your battery's dimensions, terminal configuration, and specifications before purchase to ensure proper fit.

Warning: LiFePO4 charger required if upgrading from non-lithium batteries.

VMAX LFP12120MBH Datasheet

VMAXTANKS App Downloads:

Recommended Chargers for the LFP12120MBH:

VMAX 10A Charger & Maintainer

VMAX 15A Charger & Maintainer

VMAX 20A Charger & Maintainer