The MillerTech 12V 100Ah Group 24 Heated Bluetooth Lithium Dual Purpose Battery combines powerful engine starting performance with dependable deep-cycle capacity in one compact marine battery. Designed for anglers who need reliable cranking power and extended electronics runtime, this LiFePO4 battery delivers 1,200 cold cranking amps (CCA), 100Ah capacity, and built-in Bluetooth monitoring.
Featuring an integrated heating system for cold-weather charging, the MillerTech 12100DPH-G24 is an excellent choice for compatible marine cranking and electronics applications. Its compact Group 24 design weighs just 24.4 lbs., helping reduce weight compared to traditional lead-acid batteries.
Key Features
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Dual Purpose Marine Battery: Designed for compatible engine starting and deep-cycle marine applications.
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1,200 Cold Cranking Amps: Delivers high starting power for compatible outboard engines.
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100Ah Lithium Capacity: Provides dependable power for fish finders, GPS units, and other onboard electronics.
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Integrated Battery Heater: Automatically activates when connected to a charger and internal battery temperature reaches 32°F, warming the battery to 34°F before charging resumes.
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Built-In Bluetooth Monitoring: View battery status and performance directly from your smartphone using the MillerTech app.
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Lightweight Group 24 Design: Weighs just 24.4 lbs. for easier installation and reduced boat weight.
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Marine-Grade Construction: Features an IP65-rated case, heavy-duty terminals, and a stainless steel breather vent.
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10-Year Manufacturer Warranty: Backed by MillerTech's 10-year battery warranty.
Specifications
| Specification |
Details |
| Manufacturer |
MillerTech |
| Part Number |
12100DPH-G24 |
| Battery Type |
Heated Dual Purpose Lithium |
| Battery Chemistry |
LiFePO4 (LFP) |
| Nominal Voltage |
12.8V |
| Capacity |
100Ah |
| Energy Storage |
1,280Wh |
| Cold Cranking Amps |
1,200 CCA |
| Battery Group Size |
Group 24 |
| Weight |
24.4 lbs. |
| Dimensions |
10.23" × 6.61" × 8.35" |
| Terminals |
M8 |
| Maximum Charging Voltage |
14.6V |
| Maximum Charge / Discharge Current |
100A |
| Low-Voltage Cutoff |
10.5V |
| Battery Efficiency |
98% |
| Cell Type |
Prismatic |
| Case Protection |
IP65 |
| Bluetooth Monitoring |
Yes |
| Integrated Heating |
Yes |
| Manufacturer Warranty |
10 Years |
Dual Purpose Cranking & Electronics Power
The MillerTech 12100DPH-G24 is designed to handle both engine starting and deep-cycle power demands, making it a practical solution for boats running multiple marine electronics.
Common applications include:
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Compatible outboard engine starting systems
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Garmin, Lowrance, and Humminbird fish finders
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Forward-facing sonar systems
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GPS and marine networking equipment
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Other compatible 12V onboard electronics
Important: Verify your outboard manufacturer's lithium battery requirements, minimum CCA rating, and charging system compatibility before installation.
Built-In Heating for Cold-Weather Charging
The integrated heating system helps protect the battery during cold-weather charging. When connected to a charger and internal temperature drops to 32°F, the heater automatically activates and warms the battery to 34°F before charging resumes.
This feature is especially useful for anglers fishing during early spring and late fall when temperatures can drop near freezing.
Charging Requirements
Use a compatible 12V LiFePO4 battery charger with the appropriate charging profile.
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Maximum charging voltage: 14.6V
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Maximum charging current: 100A
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Integrated heating system for cold-weather charging
Why Choose MillerTech?
MillerTech dual purpose lithium batteries combine high starting power, deep-cycle capacity, and lightweight construction in one battery. With Bluetooth monitoring, built-in heating, and a 10-year manufacturer warranty, the 12100DPH-G24 is a versatile upgrade for compatible marine electrical systems.
