16V 80AH Marine Electronics Lithium Battery w/ BT (1680-BT)

Key Features & Benefits:

• Optimized for Marine Electronics: Maintains a stable operating voltage of 15V-16.8V throughout 95% of its discharge cycle, ensuring your sensitive electronics receive clean, consistent power for crisper images, enhanced signal strength, and superior performance compared to traditional 12V systems.
• Extended Run Times: With an 80Ah capacity, this battery provides ample power for extended use, often translating to 20% longer run times for your electronics compared to a 12V equivalent, maximizing your time on the water.
• Lightweight & Compact (Group 24 Size): Significantly lighter than lead-acid batteries of comparable capacity, this LiFePO4 battery reduces overall boat weight, improving fuel efficiency and handling. Its Group 24 form factor ensures compatibility with standard marine battery trays
• Exceptional Durability & Safety: Built with an advanced Battery Management System (BMS) for protection against overcharging, over-discharging, over-current, short-circuit, and high/low temperatures. LiFePO4 chemistry is inherently stable, non-toxic, and resistant to thermal runaway, offering superior safety for marine applications.
• Long Lifespan: Designed for thousands of cycles, this battery offers a lifespan up to 10 times longer than traditional lead-acid batteries, providing years of maintenance-free operation and significant long-term cost savings.
• Fast & Efficient Charging: Enjoy quicker recharge times compared to lead-acid batteries, getting you back on the water faster.
• Integrated Bluetooth Monitoring: Monitor critical battery parameters such as State of Charge (SOC), voltage, and cycle count directly from your smartphone via a dedicated app, providing real-time insights into your power system.
• Marine-Grade Construction: Features a robust, waterproof and dustproof casing, designed to withstand the harsh conditions of marine environments.
• Broad Compatibility: Compatible with major marine electronics brands like Garmin, Humminbird, and Lowrance. Note: For Lowrance units with a max input of 17VDC (e.g., HDS), a voltage regulator may be suggested, and it’s recommended not to operate electronics while charging.

Upgrade your marine electronics system with the power and precision of a 16V 80Ah Group 24 LiFePO4 battery, ensuring a clearer, more efficient, and longer-lasting experience on every trip.

THE MILLERTECH® SPORT SERIES LITHIUM BATTERY
10 YEAR GUARANTEED WARRANTY IS SIMPLE!

TERMS:

From the date of your battery purchase through year number 10 of ownership, your battery is covered. If it stops working during this time, we will repair or replace it with a battery of equal or greater value for FREE!

SHIPPING:

We cover all shipping costs associated with shuttling your battery back and forth for repair or replacement. It is our warranty; it is our cost; not yours.

EXCLUSIONS:

There are NONE! You trusted Millertech®, and if it’s within the warranty period your Millertech® battery is completely covered for everything!

PROOF OF PURCHASE:

You don’t need one. If it’s Millertech®, it’s covered!

FOR WARRANTY SERVICE CALL: 855-MAX-LITH

EMAIL:  warranty@millertechenergy.com

Recommended Chargers

The Millertech 16V 80Ah Marine Deep Cycle lithium battery is engineered for a max charge voltage of 18V charging profile.

1) 16V 15A On-Board Lithium Battery Charger (1615M)

A waterproof on-board lithium charger designed for 16V batteries that can be permanently mounted in a boat or similar application.

Features and Benefits

• 15A output current for charging 16V lithium batteries. 

• 18V output voltage charging profile. 

• 90-120V AC input for standard outlets. 

• IP65 waterproof rating for marine environments. 

• Compact size

  • 8″ × 5½″ × 5″ with handle

  • 8″ × 5½″ × 3″ without handle 

• Lightweight – 4.8 lbs.

Why choose it:

• • Designed for permanent mounting in boats.

  • Waterproof construction for harsh environments.

  • Compact and lightweight design saves space.

  • 3-year Millertech warranty with repair or replacement if the charger fails.

2) Millertech 12V, 16V, 24V, 3-Bank Battery Charger (Model#121624-3)

The Millertech 12V, 16V, 24V 3-Bank Battery Charger (Model 121624-3) is an onboard lithium charger designed to charge three separate batteries at the same time from one unit. It’s commonly used in marine setups where a boat has multiple batteries—such as a starting battery and an electronics battery. The charger is part of Millertech’s multi-bank lineup and is typically used when you want to charge multiple batteries overnight with a single plug-in connection.

This charger has three independent charging banks, each delivering about 15 amps, so each battery receives the proper charge without affecting the other. Because the banks are isolated, the charger automatically manages each battery individually to maintain proper charging and battery health.

Permanent Marine Installation. This is an onboard charger, meaning it is mounted permanently in the boat. After a day on the water you simply plug the boat into shore power and it charges everything automatically.

Specs

• Input Voltage: 90–130V AC

• AC Power Draw: 1,110W

• Dimensions: 10.5″ × 9.75″ × 4″

• Weight: 15 lbs

This charger has three independent charging banks, allowing you to charge multiple batteries simultaneously without needing separate chargers. Each bank can be configured for different battery voltages:

• 12V battery bank – commonly used for electronics or starting batteries

• 16V battery bank – often used for high-performance marine electronics systems

• 24V battery bank – commonly used for trolling motor batteries

3) Millertech 12V, 16V 36V, 3-Bank Battery Charger (Model#121636-3)

Same concept as #2 above, but allows 3 batteries – a  12v, 16v and 36v to be charged at once.