LiTime Marine starting battery offers800 CCA(Cold Cranking Amps) and810 MCA(Marine Cranking Amps), born for crank up marine outboard motor.
Born for Marine: Ideal for starting fuel-powered outboard motors up to 135 HP. Full Protection BMS: Provides 20+ protection against overcharging, over-discharging, over-current, overheating, and short circuit. Plus, BMS offers low-temp cut-off protection, auto-recovery after overload protection(30s), moisture & salt spray resistance, and pre-charge function. EV Grade A+ LiFePO4 Starting Cells: Delivers over 5000 cranking cycles, 10 times the cranking cycles than SLA batteries that of 300~500 cycles. Plus, able to be charged via outboard alternator up to 80A. Sheet Metal Constraint Structures: Cells are constrainted with sheet metal structures, which hepls to maintain reliable performance and prevent overheating, physical damage, and other safety risks. Low-Temp Cut-Off Protection: Auotomatically cut off charge and discharge under freezing weather to protect battery from damages. IP67 Waterproof & Dustproof: Designed for demanding marine environments, including rainy, dusty, and wet conditions, to ensure reliability and longevity. Compact and Lightweight: 9.68 lbs, BCI Group U1 size, L7.76*W5.2*H6.69 inch, reducing the boat's weight for improved performance. Perfect Replacement of SLA: Employs automotive-grade lithium iron phosphate cells, offering a higher energy density compared to lead-acid batteries. Other Available Application: Can be adapted for use with fuel-powered riding lawnmowers. Professional Testing & Certi.: UL1973 tested and certified by FCC, CE, RoHS, and UN38.3. Beyond ABYC Standard: All LiTime marine starting batteries are engineered to the highest standards across every aspect, including cells, battery management systems (BMS), and other technologies. DO NOTuse as a starter battery for any type of vehicle, such as cars, motorbikes, tractors, etc. In addition, it is only for 12V starting use and does not support series and parallel connections. This Item is Not Dual Purpose. Note: If you want to start an outboard motor over 135 HP with this item, please provide us with the required CCA of the motor and the charging current of the outboard alternator, we will help you check if it will support you.
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12V 20Ah Starting
C$331.19
C$395.99
C$331.19
C$395.99
12V 20Ah Starting
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Upgrade Your Power: LiTime 12V 20Ah Marine Starting Battery
Upgrade to the LiTime 12V 20Ah Marine Starting Battery, the ideal replacement for your lead-acid battery. With 800 CCA, it starts outboard motors up to 135 HP with ease. Built with premium EV Grade A+ LiFePO4 cells, this battery supports a maximum charging current of 80A from your outboard alternator. Enjoy exceptional performance in a smaller, lighter design—perfect for boating enthusiasts who demand reliability and efficiency.
All-Round Advanced EV Grade A+ LiFePO4 Starting Cells
EV Grade A+ starting cells are perfect for high-end automotive applications, delivering exceptional internal resistance and consistent capacity. These cells offer the highest energy capacity, superior cycle life, extended longevity, and reliable discharge performance, even during prolonged high-power use.
⭐Sheet Metal Constraint Structures
Helps to maintain reliable performance and prevent overheating, physical damage, and other safety risks.
⭐Fast Charging and High Power Discharge
Support max. charging current of 80A from outboard alternator and offer 800 CCA
⭐Low Impedance ≤40mΩ
The lower the impedance, the better rate of charge and discharge the cells can go through.
Self-Developed BMS for Cranking up Marine Passion
Distinct from basic BMS with only 5 protections (over-charge, over-discharge, over-current, over-temp, and short-circuit), the LiTime self-developed BMS includes these and offers over 20 protections, such as low-temp cut-off protection, auto-recovery after overload protection (30s), pre-charge function, and resistance to moisture and salt spray.
Safeguards Longivity and Performance under Low-Temp
Distinct from basic BMS with only 5 protections (over-charge, over-discharge, over-current, over-temp, and short-circuit), the LiTime self-developed BMS includes these and offers over 20 protections, such as low-temp cut-off protection, auto-recovery after overload protection (30s), pre-charge function, and resistance to moisture and salt spray.
Born for Marine Outboard with Outdoor-Rated Quality
Built for marine excellence, this battery provides 650 CCA and 810 MCA, making it ideal for starting outboard motors up to 135 HP. Crafted for outdoor durability, it boasts IP67 waterproof and dustproof protection, ensuring reliable performance in all conditions. Specifically designed for marine outboard use, it’s the perfect companion for your adventures on the water.
All-Round Superior to Lead-Acid Battery
Experience unmatched power with the LiTime LiFePO4 marine starting battery, offering superior performance compared to traditional lead-acid batteries. With over 5000 cranking cycles and an impressive 10-year lifespan, it outperforms the competition. Weighing just 9.68 lbs, it’s 21% lighter than a 12V 20Ah lead-acid battery, providing the most efficient and reliable energy solution for your marine needs.
Three Fast Charging Ways
With the LiTime 12V 20Ah starting battery, you can choose from three convenient charging options to suit your needs. Whether you use a LiFePO4 battery charger, generator, or outboard alternator, you can fully charge your battery efficiently and reliably. We recommend 0.5C(10A) charging current, about 2 hours to charge fully. And only 40 minutes to fully charge if charged with a maximum continuous charge current of 1.5C (30A).Compared with lead-acid battery charging (usually charging current is 0.1C), the max. The charging current of the LiFePO4 battery can shorten the charging time by 15 times, so it can be charged with more power in a shorter period, which can satisfy the demand of going out in a hurry.
Back by Professional Testing and Certi & Committed to Provide Best Service
Suitable for Fuel Powered Outboard and Riding Lawn Mower
BATTERY
Cell Type：
LiFePO4
Warranty：
5 Years
Cycle Life：
4000 cycles at 100% DOD, 6000 cycles at 80% DOD, 15,000 cycles at 60% DOD
Nominal Voltage：
12.8V
Rated Capacity：
20Ah
Energy：
256Wh
Max. Expansion (Parallel & Series)：
No Series, No Parallel
Internal Resistance：
≤40mΩ
Certifications：
UL1973, FCC, CE, RoHS, UN38.3
Hot Cranking Amps (HCA)：
900A
Marine Cranking Amps (MCA)：
810A
Cold Cranking Amps (CCA)：
800A
ABYC Official Certi.：
Yes
BMS
BMS：
20A
Max. Continuous Output Power：
256W
Max. Continuous Discharge Current：
20A
Max. Charge Current (Outboard Alternator)：
80A
Max. Charge Current (Outboard Charger)：
30A
CHARGE
Charge Method：
CC/CV
Charge Voltage：
14.4V±0.2V
Recommend Charge Current：
10A (0.5C)
TEMPERATURE
Charge Temperature：
0℃ to 50℃ / 32℉ to 122℉
Discharge Temperature：
-20℃ to 60℃ / -4℉ to 140℉
Storage Temperature：
-10℃ to 50℃ / 14℉ to 122℉
Low-Temperature Protection：
Yes (32℉/0℃)
Low-Temperature Charging Protection Auto Recovery：
Yes (41℉/5℃)
OTHERS
Terminals：
M6 size bolts
Weight Approx.：
9.68lbs
Size：
L7.76*W5.2*H6.69 inch
Housing Material：
ABS
Protection Class：
IP67
Can I use the battery to start the car engine?
No. Please DO NOT use this battery as a starter battery for any type of vehicle, including cars, motorcycles, or tractors.
To ensure safe usage of the battery, please follow these precautions:
Starter Battery: Do not use this battery as a starter battery for any vehicles, such as cars, motorcycles, or trucks.
Engine Compatibility: This battery is not suitable for engines (like outboard motors) that rely on a charging coil instead of an alternator.
Mounting in Marine Applications: When used 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 heavy vibrations, such as on tractors.
Secure Installation: When using with outboard engines or in shaking environments, make sure to securely fasten the battery to prevent damage from movement.
Cable Length: Position the battery close to the outboard motor, as longer cable lengths can lead to voltage loss, typically between 3% and 10%. If the voltage drop exceeds this range, consider reducing the total cable length.
Water Protection: The 12V 20Ah marine cranking battery has an IP67 protection rating. To avoid potential issues, do not fully submerge it in bilge water. To keep the battery components safe from water exposure, it is recommended to install the battery in a waterproof container and/or elevate its position .
How to know whether the battery can be applied to start my fuel outboard motor?
When selecting a battery for your fuel outboard motor, please ensure it meets the following conditions:
Verify that the required Cold Cranking Amps (CCA) for your outboard motor is less than the battery’s CCA rating of 800A.
If your outboard motor is equipped with an alternator, ensure that the alternator’s output current is less than the battery’s maximum supported charging current of 80A.
What should I do when I receive the battery?
When you receive your battery, please note that it may have a low State of Charge (SOC) due to transportation and storage. For optimal performance, we recommend charging the battery immediately to avoid over-discharge.
Fully charge the battery with battery charger for LiFePO4 lithium before first use. Battery voltage lower than 11.5V will not be able to start motors.
The duration of a single start should not exceed 3 seconds. If the primary ignition fails, wait 15 seconds before attempting to restart. If the motor still does not start after three attempts, check for other issues and wait 5 minutes before trying again.
Can I connect the LiTime 12V 20Ah marine cranking battery in series or parallel?
No. This battery doesn't support series or parallel connection.
LiTime has been cultivating for 10 years, putting customers first.
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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.
Fish Big
The lightweight design is a game-changer for someone like me, who spends a lot of time outdoors. I use this battery regularly to power all my electronics during trips, and it has never let me 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.
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.
Fish Big
The lightweight design is a game-changer for someone like me, who spends a lot of time outdoors. I use this battery regularly to power all my electronics during trips, and it has never let me 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.
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.
Fish Big
The lightweight design is a game-changer for someone like me, who spends a lot of time outdoors. I use this battery regularly to power all my electronics during trips, and it has never let me 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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