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Group 31 Dual-Purpose LiFePO4 Marine Battery with Smart Power Reserve
This is a Group 31 lithium iron phosphate (LiFePO4) battery designed for marine systems that require both engine starting and deep-cycle house power from a single battery. It supports fuel-powered outboard motors while also supplying steady energy for onboard electronics such as fish finders and trolling motors. The battery is intended for boats where space, weight reduction, and system simplicity matter, combining starting capability with usable energy storage in one unit.
Important: Not for use as a starter battery in vehicles such as cars, motorbikes, or tractors. Not compatible with generators that do not have a built-in regulator. Verify your engine’s required CCA before installation. A 14.6V 40A charger is recommended.
Key Features
- Dual-purpose marine design: Provides both high cranking current for outboard engine starting and deep-cycle power for onboard electronics, reducing the need for separate batteries.
- High cold cranking capability: Rated at 1200 CCA at 14°F and 1300 MCA at 32°F to support reliable engine starts in cold conditions.
- Smart power reserve mode: Automatically reserves 15% capacity to ensure sufficient power remains for engine restart when the battery state of charge is low.
- Integrated Bluetooth monitoring: Allows real-time status checks, discharge control, and firmware updates through a mobile app.
- Automatic self-heating: Activates below 41°F to enable charging in cold environments, warms cells to normal operating temperature, and limits discharge at extreme low temperatures.
- High-capacity Group 31 format: Delivers 2112Wh of energy and 165Ah capacity in a standard Group 31 footprint for higher onboard energy availability.
- Marine-ready construction: Designed for fuel-powered outboard motors and compliant with marine electrical installation standards.
Specs & Details
- Battery size: Group 31
- Capacity: 165Ah
- Energy capacity: 2112Wh
- Cold cranking amps: 1200 CCA at 14°F
- Marine cranking amps: 1300 MCA at 32°F
- Cell chemistry: EV-grade LiFePO4
- Cycle life: 5000+ cranking cycles; 4000+ deep cycles
- Cold-weather operation: Self-heating below 41°F; discharge protection at −4°F
- Recommended charger: 14.6V 40A
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Testimonials
We love our High Top from HTV. Micah and Lindsay were both great to work with and super helpful with any questions we had. We 100% recommend HTV for your van build needs.
High quality work! They kept us informed on all costs thru install. Lindsay & Micah are a great team! And the turn around was quick. Love our new High Top!
High quality, fair price, they went out of the way to explain their process from start to finish. They were super easy to work with and had same day turn around. I would highly recommend for your van build needs.
Lindsay and Mica are professional, kind, and know whats up! My partner does his research on what's on the market, and after having our van for over a month, we are SOOO happy we went with them! Thank you guys!
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