The MillerTech 36V 105Ah Sun Up–Sun Down Bluetooth Lithium Battery is built for anglers who demand dependable, all-day trolling motor power. Featuring 4,032Wh of energy storage, high-output LiFePO4 technology, and a heavy-duty Battery Management System (BMS), this battery delivers consistent performance for long days on the water.
Designed to power 36V trolling motors with a single battery instead of three traditional 12V batteries, the MillerTech 36105-BT combines impressive capacity, Bluetooth monitoring, and rugged marine construction.
Key Features
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105Ah High-Capacity Lithium Power: Provides 4,032Wh of energy storage for extended trolling motor runtime.
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Single 36V Battery Solution: Replaces a traditional three-battery 12V series setup for compatible 36V trolling motors.
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Built-In Bluetooth Monitoring: Monitor battery status and performance directly from your smartphone.
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150A Continuous Discharge: High-output design handles demanding trolling motor applications.
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300A Peak Discharge: Supports up to 300A for 5 seconds.
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Advanced Battery Management System: Built-in BMS provides battery protection and reliable operation.
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Low-Temperature Charging Protection: Helps protect the battery from charging in excessively cold conditions.
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Rugged Waterproof Case: Features stainless steel air vents, brass terminals, and an integrated carrying handle.
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10-Year Manufacturer Warranty: Backed by MillerTech's 10-year warranty.
Specifications
| Specification |
Details |
| Manufacturer |
MillerTech |
| Model / Part Number |
36105-BT |
| Battery Type |
LiFePO4 Lithium |
| Nominal Voltage |
38.4V (36V Class) |
| Capacity |
105Ah |
| Energy Storage |
4,032Wh |
| Weight |
68.2 lbs. |
| Dimensions |
13.5" L × 9.6" W × 10.5" H |
| Continuous Discharge Current |
150A |
| Peak Discharge Current |
300A (5 Seconds) |
| Maximum Charging Current |
100A |
| Maximum Charge Voltage |
43.2V |
| Low-Voltage Cutoff |
30V |
| Operating Temperature |
-4°F to 140°F |
| Bluetooth Monitoring |
Yes |
| Battery Management System |
Integrated BMS |
| Cell Type |
Prismatic |
| Manufacturer Warranty |
10 Years |
Trolling Motor Compatibility
Designed for compatible 36V trolling motor systems, including select models from:
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Minn Kota
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Garmin
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Lowrance
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Power-Pole
Verify your trolling motor manufacturer's lithium battery requirements and operating voltage specifications before installation.
Charging Requirements
This battery requires a compatible 36V LiFePO4 lithium battery charger. Standard lead-acid battery chargers and 12V chargers are not suitable unless specifically approved for this battery.
Battery Mounting
For a secure installation, pair this battery with the MillerTech Aluminum Battery Tray for 36V 105Ah and 12V 300Ah Batteries, designed to accommodate its oversized dimensions.
Why Choose MillerTech?
The MillerTech Sun Up–Sun Down series is engineered for anglers who spend long hours on the water and need reliable trolling motor performance. With high-capacity lithium power, Bluetooth monitoring, rugged construction, and a 10-year manufacturer warranty, this battery is an excellent upgrade for a dedicated 36V trolling motor system.
