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LiTime 12V 165Ah Dual Purpose Marine Lithium Battery | Bluetooth & 1200 CCA

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Features

Bluetooth

Self-Heating

New

LiTime 12V 165Ah Dual Purpose Marine Lithium Battery | Bluetooth & 1200 CCA

Q: Can I use this battery to start a car engine?

Important: Please DO NOT use this battery as a starter battery for any type of vehicle, including cars, motorcycles, tractors, etc.For optimal use of the battery, please observe the following safety precautions:1. Engine Compatibility: Not compatible with the outboard motor without a built-in regulator, or older voltage regulators.2. Mounting Requirements: When using in marine starting equipment (such as fuel outboard engines) or in vibrating environments, ensure the battery is securely mounted. It should not be used in areas with severe vibrations, such as tractors.3. Secure Fastening: Ensure the battery is fastened securely when used with outboard engines or in unstable environments to prevent damage from movement.4. Cable Length Considerations: Position the battery as close to the outboard motor as possible, as varying cable lengths can result in voltage loss. If the voltage drop exceeds this range, reduce the total cable length.

Q: Can LiTime 12V 165Ah dual-purpose battery really start my fuel-powered outboard motor?

Yes. With 1200 CCA @14°F and 1300 MCA @32°F, it can reliably crank outboard motors up to 300HP, including Mercury, Honda, Suzuki, Evinrude, and Tohatsu. Before purchasing, check that your motor's required CCA is ≤1200A. If you're unsure, share your motor's CCA/MCA requirements and alternator charging current, and we'll help confirm compatibility.

Q: Can I connect the 12V 165Ah dual-purpose marine battery in series or parallel?

Yes, you can connect the battery in series and parallel. But here are some limitations to follow:1. For Starting and Deep Cycle:Support connecting up to 4 identical batteries in parallel for up to:12V(12.8V) 660Ah battery system.Note: It can only be connected in parallel instead of a series connection.2. For ONLY Energy Storage:Support connecting up to 16 identical batteries for up to: 4 in series as a 48V (51.2V) battery system or 4 in parallel as a 660Ah battery system.To connect in series or parallel, batteries should meet the following conditions:a. identical batteries with the same battery capacity (Ah) and BMS (A);b. from the same brand (as lithium batteries from different brands have their special BMS);c. purchased in near time (within one month).

Q: What should I do when I receive the battery?

1. Charge before first use: The battery may arrive with low SOC due to shipping/storage. Fully charge it with a LiFePO4 charger before use to avoid over-discharge.2. Starting requirements: Battery voltage must be above 11.5V to start a motor. Each start should not exceed 3 seconds; if it fails, wait 15 seconds before retrying. After 3 failed attempts, wait 5 minutes and check for other causes.3. Bluetooth activation: Some Bluetooth batteries may arrive “off,” showing 3–5V. This is normal. Simply connect to an AC-DC LiFePO4 charger or MPPT solar controller for 3–10 seconds to activate.4. Storage tips: For long-term storage, charge to 50% SOC and recharge every 3 months to maintain performance.

Q: Is the dual-purpose battery waterproof?

Yes. The 12V 165Ah marine starting battery is rated IP67 waterproof and dustproof. However, it should not be fully submerged in bilge water. For added protection, we recommend installing it in a waterproof battery box or mounting it in an elevated or sheltered position such as inside the cabin.

C$629.99

C$1,359.99

53% OFF

One battery for Two Powers — From Outboard Starts to Onboard Power

2-in-1 Functionality: Powers fuel-powered outboard motor cranking & marine devices (fish finders, trolling motors). Eliminates dual heavy batteries, saves space & cuts extra costs.
Wide Compatibility: Fits most fuel-powered outboard motors, including Mercury, Honda, Suzuki, Evinrude, Tohatsu and more. ABYC-compliant installation standard ensures safe, worry-free cross-brand use.
1200 CCA Starting Power: With 1200CCA(@14°F)/ 1300MCA(@32°F), eliminates the risk of cold-start failure—so your fuel-powered outboard fires up instantly, even on chilly mornings.
Bluetooth 5.0 Monitoring: Remotely OTA upgrade, control discharge & check status via LiTime APP. No more worry about SOC guessing to avoid the unexpected power outages.
25% Emergency Power Reserve: Automatically reserve 25% SOC so you can always restart your engine and return safely—even after a full day of fishing.
Highest Energy Density in Group 31: With 2112Wh in Group 31 size, 1.65x more energy than the same LiFePO4, 3.5x more and half the weight of lead-acid.
Self-Heating Tech: Activates below 41°F (5°C) to ensure charging, heats to 50°F (10°C) for normal use, and stops discharge at -4°F (-20°C) to protect the battery in extreme cold.
10-Year Lifespan: 5000+ cranking/4000+ deep cycles (100%DOD). Outperforms lead-acid (200-500 cycles). 5-year service ensures long-term reliability.

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1 Pack

C$629.99 C$1,359.99

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2 Pack (C$762.29 /Each)

C$1,247.38 C$2,719.98

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C$809.98 C$1,689.98

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12V 165Ah Dual Purpose

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FEATURES SPECS FAQ REVIEWS

One Battery, Two Powers

— From Outboard Starts to Onboard Power

Tired of carrying two heavy batteries? Only one LiTime 12V 165Ah dual purpose lithium marine battery is born for two purposes. With 1200CCA, it reliably cranks fuel-powered outboard motors up to 300HP, even in cold conditions. With 2112Wh capacity and 4000+ cycles, it keeps your fish finder, trolling motor, lights, and other onboard electronics running without worry.

Reliable Starts Even in the Cold

No more weak cranking or slow starts. With 1200 CCA at 14°F and 1300 MCA at 32°F, LiTime 12V 165Ah dual-purpose marine battery delivers instant, confident engine starts in any weather. Whether you’re running a Mercury, Honda, Suzuki, Evinrude, or Tohatsu outboard, you’ll have the power you need to fire up quickly and head out without worry.

Smart Bluetooth Made Monitoring with Ease

Check battery status, switch on, or manage discharge directly from your phone. Manage 25% emergency reserve or emergency discharge with one tap. Plus, with the newest OTA upgrades, LiTime 12V 165Ah dual purpose lithium battery always stays updated with the latest LiTime BMS features.

Upgrade to 12V 165Ah for Stronger Power

LiTime 12V 165Ah dual purpose lithium battery takes performance to the next level. With 1200CCA@14℉(vs. 1000CCA), 150A BMS (vs. 140A), and 2112Wh energy (vs. 1792Wh), it upgrades from 140ah at smoother engine starts, more reliable power for your electronics, and extended runtime on every trip.

Compact Design, Maximum Capacity

LiTime 12V 165Ah dual purpose lithium battery delivers 76% more energy (2112Wh) while saving 50% space and cutting 75% weight compared to two 12V 100Ah lead-acid. Enjoy easier installation, more storage room, and longer runtime—all in the compact Group 31 size.

IP67 Protection, Marine-Grade Confidence

LiTime 12V 165Ah dual purpose lithium battery comes with IP67 protection—water-proof, dust-proof, and salt-spray-proof. Whether you’re navigating rough seas, fishing in saltwater, or docking along the coast, it provides reliable performance and long-lasting durability in the harshest marine environments.

Built for Safety, Proven to Last

LiTime 12V 165Ah dual purpose marine battery features self-developed BMS with 20+ smart protections—guarding against overcharge, over-discharge, overcurrent, overheating, and short circuits. Upgraded with low-temp cut-off, moisture and salt-spray resistance, plus 30s auto-recovery from overload, it ensures dependable performance even in harsh environments.

One Battery Does It All

LiTime 12V 165Ah dual purpose lithium marine battery lets you crank your outboard with confidence and power your onboard electronics all day—lights, radar, fish finder, and more. One battery, no extra hassle.

4 Charging Methods

Whether you use LiFePO4 battery charger, outboard alternator, generator, or solar panel, you can fully charge your battery efficiently and reliably.

BATTERY

Cell Type：

LiFePO4

Warranty：

5 Years

Cycle Life：

≥ 5000 Cranking Times

Nominal Voltage：

12.8V

Rated Capacity：

165Ah

Energy：

2112Wh

Max. Expansion (Parallel & Series)：

Dual Purpose: 4P1S; Energy Storage: 4P4S

Internal Resistance：

≤40mΩ

Certifications：

UL-1973,FCC,CE,RoHS,UN38.3,CE RED,FCC ID

Hot Cranking Amps (HCA)：

1500A

Marine Cranking Amps (MCA)：

1300A

Cold Cranking Amps (CCA)：

1200A(-10°C)

Bluetooth：

√

Self-Heating：

√

BMS

BMS：

150A

Max. Continuous Output Power：

1920W

Max. Continuous Charge Current：

150A

Max. Continuous Discharge Current：

150A

Max. Charge Current (Outboard Alternator)：

165A

CHARGE

Charge Method：

CC/CV

Charge Voltage：

14.4V ± 0.2V

Recommend Charge Current：

33A

TEMPERATURE

Charge Temperature：

-20°C to 50°C/-4°F to 122°F

Discharge Temperature：

-20°C to 60°C /-4°F to 140°F

Storage Temperature：

-10℃ to 50 ℃ / 14℉ to 122 ℉

Low-Temperature Protection：

√

Automatic Discharge Off：

<-4°F/-20°C

Automatic Charge Off：

＜32°F/0°C

Automatic Charging Recovery：

≥41°F/5°C

SELF-HEATING

Heating Temperature：

Charge: -20°C to 5°C/-4°F to 41°F

Approx. Heating Time：

40-70 mins (from-10°C/14°F); 80-120 mins (from-20°C/-4°F)

Required Minimum Charge Current for Heating Function：

15A

OTHERS

Terminals：

M8 Bolts

Weight Approx.：

33.49 lbs

Size：

L13*H6.77*H8.5 inch (Group 31 Size)

Housing Material：

ABS

Protection Class：

IP67

Can I use this battery to start a car engine?

Important: Please DO NOT use this battery as a starter battery for any type of vehicle, including cars, motorcycles, tractors, etc.

For optimal use of the battery, please observe the following safety precautions:

1. Engine Compatibility: Not compatible with the outboard motor without a built-in regulator, or older voltage regulators.

2. Mounting Requirements: When using in marine starting equipment (such as fuel outboard engines) or in vibrating environments, ensure the battery is securely mounted. It should not be used in areas with severe vibrations, such as tractors.

3. Secure Fastening: Ensure the battery is fastened securely when used with outboard engines or in unstable environments to prevent damage from movement.

4. Cable Length Considerations: Position the battery as close to the outboard motor as possible, as varying cable lengths can result in voltage loss. If the voltage drop exceeds this range, reduce the total cable length.

Can LiTime 12V 165Ah dual-purpose battery really start my fuel-powered outboard motor?

Yes. With 1200 CCA @14°F and 1300 MCA @32°F, it can reliably crank outboard motors up to 300HP, including Mercury, Honda, Suzuki, Evinrude, and Tohatsu. Before purchasing, check that your motor's required CCA is ≤1200A. If you're unsure, share your motor's CCA/MCA requirements and alternator charging current, and we'll help confirm compatibility.

Can I connect the 12V 165Ah dual-purpose marine battery in series or parallel?

Yes, you can connect the battery in series and parallel. But here are some limitations to follow:

1. For Starting and Deep Cycle:

Support connecting up to 4 identical batteries in parallel for up to:12V(12.8V) 660Ah battery system.

Note: It can only be connected in parallel instead of a series connection.

2. For ONLY Energy Storage:

Support connecting up to 16 identical batteries for up to: 4 in series as a 48V (51.2V) battery system or 4 in parallel as a 660Ah battery system.

To connect in series or parallel, batteries should meet the following conditions:

a. identical batteries with the same battery capacity (Ah) and BMS (A);

b. from the same brand (as lithium batteries from different brands have their special BMS);

c. purchased in near time (within one month).

What should I do when I receive the battery?

1. Charge before first use: The battery may arrive with low SOC due to shipping/storage. Fully charge it with a LiFePO4 charger before use to avoid over-discharge.

2. Starting requirements: Battery voltage must be above 11.5V to start a motor. Each start should not exceed 3 seconds; if it fails, wait 15 seconds before retrying. After 3 failed attempts, wait 5 minutes and check for other causes.

3. Bluetooth activation: Some Bluetooth batteries may arrive “off,” showing 3–5V. This is normal. Simply connect to an AC-DC LiFePO4 charger or MPPT solar controller for 3–10 seconds to activate.

4. Storage tips: For long-term storage, charge to 50% SOC and recharge every 3 months to maintain performance.

Is the dual-purpose battery waterproof?

Yes. The 12V 165Ah marine starting battery is rated IP67 waterproof and dustproof. However, it should not be fully submerged in bilge water. For added protection, we recommend installing it in a waterproof battery box or mounting it in an elevated or sheltered position such as inside the cabin.

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Why LiTime is Your Best Choice

TOP 1 LiFePO4 Brand

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.

15-Year Expertise

With 15 years of industry experience, LiTime serves over 350,000+ users globally, ensuring quality and trust. LiTime keeps innovating and has your back, always.

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

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

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

LiTime is backed by over 70+ patents and recognized for quality. Let authorities and patents prove why LiTime leads the way.

Trusted by Users Worldwide

Powering the World, Trusted by All

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User Insights

Hamjazz

I’ve been using the battery primarily as an emergency power backup at home — it gives me peace of mind knowing I’ve got reliable energy if the grid goes down.

Esther Snow

Drop in for our travel trailer Great addition to our travel trailer. Now we can spend endless time at a remote campsite without worrying we will run out of power.

James

Omg awesome! Things are looking great so far. With all the great reviews on the web. I’m feeling pretty good about the two 200 AH batteries I bought. Thank you for a great product

Allan

Fairly light weight at 80 lbs. Only took about a day to fully charge with solar panels, and it runs my 3000 W inverter with no issues. 400ah is well worth getting instead of 4-100ah batteries connected together due to less wiring and possible loose connections. Highly recommend.

Donald L Anderson

Installed 2 100ah batteries in boat as my house bank with the Litime DC to DC 40amp charger to protect alternator. I have to say very happy with everything.

Hamjazz

I’ve been using the battery primarily as an emergency power backup at home — it gives me peace of mind knowing I’ve got reliable energy if the grid goes down.

Esther Snow

Drop in for our travel trailer Great addition to our travel trailer. Now we can spend endless time at a remote campsite without worrying we will run out of power.

James

Omg awesome! Things are looking great so far. With all the great reviews on the web. I’m feeling pretty good about the two 200 AH batteries I bought. Thank you for a great product

Allan

Fairly light weight at 80 lbs. Only took about a day to fully charge with solar panels, and it runs my 3000 W inverter with no issues. 400ah is well worth getting instead of 4-100ah batteries connected together due to less wiring and possible loose connections. Highly recommend.

Donald L Anderson

Installed 2 100ah batteries in boat as my house bank with the Litime DC to DC 40amp charger to protect alternator. I have to say very happy with everything.

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LiTime 12V 165Ah Dual Purpose Marine Lithium Battery | Bluetooth & 1200 CCA

One Battery, Two Powers— From Outboard Starts to Onboard Power

Reliable Starts Even in the Cold

Smart Bluetooth Made Monitoring with Ease

Upgrade to 12V 165Ah for Stronger Power

Compact Design, Maximum Capacity

IP67 Protection, Marine-Grade Confidence

Built for Safety, Proven to Last

One Battery Does It All

4 Charging Methods

BATTERY

BMS

CHARGE

TEMPERATURE

SELF-HEATING

OTHERS

Can I use this battery to start a car engine?

Can LiTime 12V 165Ah dual-purpose battery really start my fuel-powered outboard motor?

Can I connect the 12V 165Ah dual-purpose marine battery in series or parallel?

What should I do when I receive the battery?

Is the dual-purpose battery waterproof?

Customer Reviews

Advantages of official website

Official Website Discount

LiFeP04 Experts Support

Risk-Free Warranty

Free Shipping & Fast Delivery

LiPoints & Rewards

One-Stop-Solution

Why LiTime is Your Best Choice

TOP 1 LiFePO4 Brand

15-Year Expertise

24/7 Expert Support

Industry-Leading Tech

Cutting-Edge Features

Expert-Backed Quality

Trusted by Users Worldwide

Get an 5% new user discount

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One Battery, Two Powers

— From Outboard Starts to Onboard Power