The MillerTech 12V 100Ah Group 24 Lithium Deep Cycle Battery (12100G24) delivers reliable power for trolling motors, fish finders, forward-facing sonar, and other marine electronics. Built with LiFePO4 technology, this Sport Series battery provides consistent voltage, long-lasting deep-cycle performance, and significantly less weight than traditional lead-acid batteries.
Featuring built-in Bluetooth monitoring, low-temperature charging protection, and 100Ah of capacity, the MillerTech 12100G24 is an excellent choice for anglers looking to upgrade their marine battery system.
Key Features
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100Ah Lithium Capacity: Provides 1,280Wh of energy storage for trolling motors and marine electronics.
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Built-In Bluetooth Monitoring: Check battery voltage, remaining capacity, and operating status through the MillerTech smartphone app.
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Lightweight Group 24 Design: Weighs approximately 26.55 lbs., reducing weight compared to traditional lead-acid batteries.
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LiFePO4 Technology: Provides consistent power delivery, long cycle life, and low maintenance requirements.
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Low-Temperature Charging Protection: Helps prevent charging when battery temperatures are too low.
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Integrated Battery Management System: Protects against overcharging, excessive discharge, overcurrent, and temperature-related conditions.
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Marine-Grade Construction: IP65-rated case with stainless steel breather vent and molded battery hold-down grooves.
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10-Year Manufacturer Warranty: Backed by MillerTech's Sport Series lithium battery warranty.
Specifications
| Specification |
Details |
| Manufacturer |
MillerTech |
| Part Number |
12100G24 |
| Battery Series |
Sport Series |
| Battery Chemistry |
LiFePO4 Lithium |
| Nominal Voltage |
12.8V |
| Capacity |
100Ah |
| Energy Storage |
1,280Wh |
| Battery Group Size |
Group 24 |
| Weight |
26.55 lbs. |
| Dimensions |
10.23" L × 6.61" W × 8.35" H |
| Maximum Charging Voltage |
14.6V |
| Maximum Charge/Discharge Current |
100A |
| Peak Discharge Current |
300A for 5 Seconds |
| Bluetooth Monitoring |
Yes |
| Low-Temperature Charging Protection |
Yes |
| Battery Terminals |
M8 |
| Case Protection |
IP65 |
| Manufacturer Warranty |
10 Years |
Trolling Motor & Marine Electronics Applications
The MillerTech 12100G24 is designed for deep-cycle marine applications, including:
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Compatible 12V trolling motors
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24V trolling motor systems using two compatible 12V batteries connected in series
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36V trolling motor systems using three compatible 12V batteries connected in series
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Garmin, Lowrance, and Humminbird fish finders
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Forward-facing sonar systems and marine networking equipment
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Other compatible 12V marine electronics
Verify your trolling motor's current requirements and follow MillerTech's battery connection guidelines when installing multiple batteries.
Important: This is a deep-cycle battery, not a dedicated engine-starting battery. For applications requiring outboard cranking power, choose a compatible MillerTech dual-purpose starting battery.
Bluetooth Battery Monitoring
Built-in Bluetooth connectivity allows you to check battery information directly from your smartphone using the MillerTech app.
Monitor remaining capacity, voltage, and battery operating information without opening the battery compartment.
Charging Requirements
Use a compatible 12V LiFePO4 lithium battery charger with an appropriate charging profile.
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Maximum charging voltage: 14.6V
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Maximum charge current: 100A
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Built-in low-temperature charging protection
This battery does not have an integrated heater. Low-temperature protection prevents unsafe charging conditions rather than actively warming the battery.
Why Choose MillerTech?
The MillerTech 12V 100Ah Group 24 Sport Series battery combines dependable deep-cycle power, Bluetooth monitoring, and lightweight construction in a compact marine battery. Whether you're upgrading your trolling motor battery bank or adding dedicated electronics power, the 12100G24 provides a reliable lithium solution backed by a 10-year manufacturer warranty.
