24V 80AH Sport Series Lithium Battery w/ Bluetooth (2480-BT)

The 24V 80AH will power your trolling motor under heavy use for a minimum of 6+ hours. 2 of these 2V 80AH connected in parallel will power your motor for 12+ hours. We have reports of anglers using 1x 24V 80AH for multiple days without killing it. Although that is very likely true, at Millertech we believe in giving you real world numbers that do not lie. We would much rather under promise than over promise! We believe the long term results are much more important than today’s fame. 

UL Certified; ANSI/CAN/UL 1973:2022 Ed.3

Simple 10 Year Warranty
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!

Recommended Charger
The Millertech 24V 80Ah lithium battery is designed for a 29V charging profile. For optimal performance, and a true 100% charge, the 12V–36V Dark Speed On The Run Dual Marine Charger is an excellent option. It maximizes trolling motor runtime by directing excess energy from your engine’s charging system to your 12V–36V trolling motor batteries, and a 12V–24V version is also available.
The 12V 20A On-Board Lithium Battery Charger (1220M) is another good charging option.

The Sport Series Marine Batteries

The Sport Series Marine batteries are all sealed with a thick rubber gasket along the lid connection point. This means they are Marine approved IP65 rated. A completely sealed battery case will cause condensation, so we build them with a marine grade Stainless Steel breather vent. Our vent sits on the top of the case unlike some others where the vent sits down inside catching rain and dirt.

Custom molded, heavy duty, re-closable battery case. This means if you ever have an issue with your battery no matter is it in year 5 or year 15 we will always have easy access to repair any defective parts. This custom case also has convenient hold down strap grooves molded into the side corners helping to keep your straps seated securely in place.

BCI Group Size 31

(This is a standardized battery case size defined by the Battery Council International (BCI). It tells you the battery’s physical dimensions and terminal layout. If a vehicle or tray calls for Group 31, any Group 31 battery should physically fit and the cables should reach correctly.) Its Group Size 31 dimensions allow it to fit standard battery trays designed for that footprint. Need a tray? Purchase them here.

Size – 13” × 6.75” × 9”

The battery measures 13 inches by 6.75 inches by 9 inches.

Weight – 40 lbs

The battery weighs 40 pounds. It is significantly lighter than a comparable lead-acid starting battery, reducing overall vehicle or equipment weight.

Terminals
Built with heavy-duty M8 bolts/washers in 18-8 stainless steel. If multiple lugs are used, the washers may be removed, or longer bolts may be required to fully seat the bolt into the copper pillar.

Battery Management System (BMS)

The battery includes an integrated Battery Management System (BMS). The BMS protects against over-charging, over-discharging, excessive current, and unsafe temperatures to extend battery life.

Efficiency – 98%

The battery operates at 98% energy efficiency. This means nearly all stored energy is usable, resulting in longer run-times and faster charging.

Memory Effect

This battery has no memory effect. You can charge it at any state of charge without reducing overall capacity over time.

Built-In Bluetooth
Equipped with Bluetooth technology. The battery connects to an app that allows you to conveniently monitor multiple batteries at once—no more checking multiple apps. You can download the app here

Max Charge Voltage – 14.6V

The maximum charging voltage for this battery is 29 volts. Charging within this range ensures a full charge while protecting internal cells.

Max Charge / Discharge Current

The battery supports up to 80 amps of continuous charge and discharge current. This defines the safe operating range for sustained high-power loads and charging input.

Peak Discharge Current– 240A

The battery can deliver up to 240 amps for short bursts (up to 3 sec.). This allows it to support engine starting or sudden high-load demands.

Cut-Off Voltage – 22V

The battery has a built-in low-voltage 22V cut-off. This prevents over-discharge and protects the cells from damage to extend service life.

Operating Temperature:

The battery is designed to operate in temperatures ranging from 32°F to 130°F. This wide range allows reliable use in both cold and hot environments.

Low-Temperature Charging Protection 

The battery includes built-in low-temperature charging protection. This prevents charging in freezing conditions to protect the cells. Charging Temp. Range: 25°F-131°F

Cell Type – Prismatic

This battery is constructed using prismatic lithium cells. Prismatic cells allow higher capacity.

Robust Design  for Longer Life
Robust yet lightweight, Millertech Sport Series Lithium Batteries can last up to 10X longer than AGM or lead-acid batteries. Never be stranded with a dead battery again!

Be sure to download the product manual for more details.

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