Dual-Purpose Marine Batteries

Combine starting support and onboard power in one lithium battery to simplify wiring and reduce weight on your boat.

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LiTime 12V 165Ah dual purpose smart self-heating battery
LiTime 12V 165Ah dual purpose smart self-heating battery
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icon shows litime lithium cranking/starting batteries
Marine starting power—strong, fast, and cold-ready.
icon of litime smart bluetooth function batteries
Bluetooth 5.0 for battery status tracking—SOC, voltage, power, and more.
litime self-heating batteries
Smart heating below 41°F for safer cold-weather charging.
function icon of litime low-temp protection batteries
Low-Temp Charging Protection – Stops charging in cold environments to ensure safety and extend battery lifespan.
litime water proof products
Waterproof design for resisting water—safe in wet conditions.

12V 165Ah Dual Purpose Smart Self-Heating

Group 31: L13*W6.77*H8.5 in
1200 CCA and 1300 MCA
Marine Starting + Deep Cycle in One
$589.99
$699.99
25% OFF
Compare
Quick View
litime self-heating batteries
Smart heating below 41°F for safer cold-weather charging.
function icon of litime low-temp protection batteries
Low-Temp Charging Protection – Stops charging in cold environments to ensure safety and extend battery lifespan.
icon shows litime lithium cranking/starting batteries
Marine starting power—strong, fast, and cold-ready.
icon of litime smart bluetooth function batteries
Bluetooth 5.0 for battery status tracking—SOC, voltage, power, and more.
litime water proof products
Waterproof design for resisting water—safe in wet conditions.

12V 100Ah Dual Purpose Smart Self-Heating

Bluetooth | Smart Power Reserve
900 CCA/ 1000 MCA
Dual Purpose Group 24
$419.99
$559.99
Need Help?
Have Questions or Want to Discuss Your Lithium Power System Needs?

FAQ

What is a dual-purpose marine battery?

A dual-purpose marine battery is designed to support both engine starting and onboard power needs, helping simplify your boat’s battery setup.

Who should choose a dual-purpose marine battery?

A dual-purpose battery is a good option for boaters who want starting support and power for onboard essentials in one battery, especially when they want to reduce weight and simplify wiring.

Can a dual-purpose battery power fish finders and electronics?

Yes, depending on your setup and total power demand. LiTime dual-purpose marine batteries can help support essential onboard electronics while also offering starting support for compatible applications.

Is a dual-purpose battery better than using separate batteries?

It depends on your boat setup. A dual-purpose battery can simplify wiring and reduce weight, while separate starting and deep-cycle batteries may be better for more complex or higher-power systems.

Can I use a dual-purpose battery as a lead-acid replacement?

In compatible applications, a LiFePO4 dual-purpose battery can be a lighter and longer-lasting replacement option. Always check engine, charger, and system compatibility before switching.

What should I check before buying a dual-purpose marine battery?

Check engine starting requirements, onboard power demand, battery size, charger compatibility, wiring layout, and whether your use case requires dedicated starting or deep-cycle support.

Why choose LiTime dual-purpose marine batteries?

LiTime dual-purpose marine batteries are supported by NMEA membership, IGFA membership, Wired2Fish reviews, Slay Nation Tournament Fishing, Bassmaster Classic Outdoor EXPO presence, 16+ years in lithium power, and strong Trustpilot ratings.

The NO.1 LiFePO4 Battery Brand

16 Years of Innovation and Expertise in the #1 LiFePO4 Battery
The No.1 LFP Brand
100% Quality Guarantee
NO.1 LiFePO4 Batery
The industry best lithium battery brand.
NO.1 LiFePO4 Batery
NO.1 LiFePO4 Batery
As the #1 LiFePO4 battery brand, LiTime leads the market with the most complete power solutions—covering RVs, home storage, marine, golf carts, off-grid systems, and beyond.
16-Year Expertise
16 years of trust. Powering 350,000+ users worldwide.
16-Year Expertise
16-Year Expertise
With 16 years of industry experience, LiTime serves over 350,000+ users globally, ensuring quality and trust. LiTime keeps innovating and has your back, always.
One-Stop Solution
Complete LiFePO4 solutions. All in LiTime.
One-Stop Solution
One-Stop Solution
From 12V to 48V, chargers to accessories, LiTime offers the market’s most complete selection—your one-stop power solution, delivering everything you need and more.
24/7 Expert Support
24/7 expert support—before, during, and after your purchase.
24/7 Expert Support
24/7 Expert Support
With 24/7 expert support and an average 24-hour response time, we ensure you get the help you need, anytime. Whether it's pre-sales or after-sales, we guarantee 100% support every step of the way.
Industry-Leading Tech
Leading LiFePO4 innovation. Powered for what’s next.
Industry-Leading Tech
Industry-Leading Tech
With EV-grade cells passing 80+ tests and a self-developed BMS with under 1% margin of error, LiTime batteries ensure 15,000 cycles, 20+ protections, and up to 10 years of reliable performance.
Cutting-Edge Features
All-in-one battery line. From essential to advanced features.
Cutting-Edge Features
Cutting-Edge Features
LiTime batteries offer a range of advanced features, including Bluetooth, low-temperature protection, self-heating, high-rate discharge, pre-charging, ensuring reliable power and peace of mind in any environment.
Expert-Backed Quality
Certified. Patented. Proven. LiTime leads with trust.
Expert-Backed Quality
Expert-Backed Quality
LiTime is certified by top organizations like RVDA, backed by over 70+ patents and recognized for quality. Let authorities and patents prove why LiTime leads the way.