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surface of LiTime 12V 20Ah marine starting lithium battery
Dimension of LiTime 12V 20Ah Marine Starting Lithium Battery
features of LiTime 12V 20Ah marine starting battery
LiTime 12V 20Ah marine starting lifepo4 battery with 800 CCA, 810 MCA, and 900 HC
chart of litime 12v 20ah lithium cranking marine battery's cranking amps at different temp
top BMW-grade lifepo4 starting cells of litime 12V 20Ah cranking battery
battery management system protection information of litime 12v 20ah marine lithium cranking battery
Low-temp cut off protection feature of litime marine starting battery 12v 20ah
LiTime 12V 20Ah lithium 800cca cranking battery vs AGM battery
applications of litime 12v 20ah marine starting battery - outboard motor and lawn mower
precaution of using LiTime 12v 20ah starting battery
1 / 1
surface of LiTime 12V 20Ah marine starting lithium battery
Marine starting power—strong, fast, and cold-ready.
Auto low-temp cut-off prevents damage from charging or discharging in extreme cold.
Dimension of LiTime 12V 20Ah Marine Starting Lithium Battery
features of LiTime 12V 20Ah marine starting battery
LiTime 12V 20Ah marine starting lifepo4 battery with 800 CCA, 810 MCA, and 900 HC
chart of litime 12v 20ah lithium cranking marine battery's cranking amps at different temp
top BMW-grade lifepo4 starting cells of litime 12V 20Ah cranking battery
battery management system protection information of litime 12v 20ah marine lithium cranking battery
Low-temp cut off protection feature of litime marine starting battery 12v 20ah
LiTime 12V 20Ah lithium 800cca cranking battery vs AGM battery
applications of litime 12v 20ah marine starting battery - outboard motor and lawn mower
precaution of using LiTime 12v 20ah starting battery
1 / 1
Features

LiTime 12V 20Ah 800 CCA Marine Starting Lithium Battery

$259.99
$429.99
- 39.54 %

800 CCA & 810 MCA – Crank up Your Marine Outboard with Ease

  • Top BMW-Grade Cells: Combines high performance and safety with 5000+ cranking cycles, delivering a luxury-grade and long-lasting marine experience.
  • 45C Peak Discharge Rate: Delivers unmatched starting power, ensuring quick and reliable ignition in any condition.
  • Reliable in All Conditions: With 800CCA (-10℃), 810MCA, and 900HCA, it ensures powerful starts at any temperature.
  • Patented Metal Constraint Technology: Effectively prevents heat expansion, enhancing stability, durability, and extending battery life.
  • 20+ Advanced Protections: Low-temp cut-off, overload protection with auto-recovery (30s), salt-spray resistance, moisture-proof.
  • IP67 Waterproof & Dustproof: Ideal for marine environments.
  • Compact & Lightweight: 50% smaller and 74% lighter than lead-acid batteries, with a BCI Group U1 size and a weight of just 9.68 lbs. (VS 755 CCA Lead-acid Battery)
  • Faster Charging: Supports 1.5C (30A) max. charging rate, just 40 mins to be fully charged.
  • Wide Application: Also for fuel-powered riding lawnmowers.
  • Single Use Only: No series or parallel connections allowed.
  • Certifications: UL1973 tested, FCC, CE, RoHS, UN38.3.
  • Safety Guarantee: LiTime batteries are installed to ABYC E-13 standards, fully compliant with lithium battery requirements.
  • Application Restrictions: DO NOT use as a starter battery in vehicles (cars, bikes, tractors, etc.).
  • NOT Dual-purpose: For a dual-purpose using, try LiTime 12V 140Ah dual purpose lithium marine battery
  • Installation Note: Please do not position the battery with the bolts side downward. Other orientations are permissible.
  • Tip: Please check the CCA to confirm if this battery is suitable for your engine. If you're unsure, contact service@litime.com .
Comparison
Quantity:
$259.99
$429.99
- 39.54 %
warranty
5-Year Warranty
Backed up by techical support within 24hrs.
Free Shipping
Free standard shipping on all orders.
Delivered in 2–5 business days.
Free Returns
30 Days Hassle Free Returns
surface of LiTime 12V 20Ah marine starting lithium battery
12V 20Ah Starting
$259.99
$429.99
Features
Specs
FAQ
Reviews

Upgrade Your Power: LiTime 12V 20Ah Marine Starting Battery

Discover the perfect replacement for your lead-acid battery with the LiTime 12V 20Ah Marine Starting Battery. Designed to deliver 800 CCA (under -10℃). Featuring top BMW-grade LiFePO4 starting cells, this battery supports a max. charging current of 80A from outboard alternator. Experience superior performance in a more compact and lighter package, making it the ideal choice for any boating enthusiast seeking reliability and efficiency.

features of LiTime 12V 20Ah Marine Starting Lithium Battery


BMW Grade LiFePO4 Starting Cells

BMW-grade starting cells are ideal for high-end automotive production, offering excellent internal resistance and consistent capacity, the cells provide the highest capacity, superior cycling performance, longer lifespan, and robust discharge capabilities, even under long-term high-power use.

LiTime 12V 20Ah marine starting battery featuring BMW-grade LiFePO4 cells and patented sheet metal constraint structure

Patented 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.

battery management system protection information of LiTime 12V 20Ah Marine Starting Lithium Battery


Safeguards Longivity and Performance under Low-Temp

The battery features an intelligent cut-off function that halts charging below 0°C (32°F) and discharging below -20°C (-4°F). This low-temperature protection safeguards the battery from damage in cold conditions, extending its lifespan and ensuring long-lasting performance.

low temperature charging off protection feature of LiTime 12V 20Ah Marine Starting Lithium Battery


Born for Marine Outboard with Outdoor-Rated Quality

Engineered for marine excellence, this battery delivers 800 CCA and 810 MCA. Designed with outdoor-rated quality, it features IP67 waterproof and dustproof protection, ensuring reliable performance in any conditions. Born for marine outboard use, it's your ideal companion on the water.

LiTime 12V 20Ah marine starting battery with 800 CCA, 810 MCA, and 900 HCA, IP67 rated for water and dust proof


All-Round Superior to Lead-Acid Battery

Experience unparalleled power with LiTime LiFePO4 marine starting battery, offering all-round superiority over traditional lead-acid batteries. Enjoy over 5000 cranking times and a remarkable 10-year lifespan. LiTime 12V 20Ah marine starting battery is a lightweight, compact, and long-lasting alternative to lead-acid batteries. At 74% lighter and 50% smaller, it offers easy installation and space-saving benefits, ensuring you get the most efficient and reliable energy solution.

LiTime 12V 20Ah marine starting battery, 74% lighter than lead-acid, 3.3X lifespan, and 50% smaller for easy replacement


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.

recommended 3 charging ways to litime 12v 20ah 800 cca marine starting lithium battery


Back by Professional Testing and Certi & Committed to Provide Best Service

LiTime offers rigorous testing, a 5-year warranty, and fast shipping with local warehouse support for reliable service


Suitable for Fuel Powered Outboard and Riding Lawn Mower

applicable scenarios for litime 12v 20ah 800 cca marine starting lithium battery

SPECS

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(-10℃); 650A(-18℃)
Bluetooth:
/
Self-Heating:
/
BMS
BMS:
20A
Max. Continuous Output Power:
256W
Max. Continuous Charge Current:
30A
Max. Continuous Discharge Current:
20A
Max. Charge Current (Outboard Alternator):
80A
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

FAQ

Can I use the battery to start the car engine?
How to know whether the battery can be applied to start my fuel outboard motor?
What should I do when I receive the battery?
Can I connect the LiTime 12V 20Ah marine cranking battery in series or parallel?

REVIEWS

Customer Reviews

Based on 7 reviews
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(7)
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m
michael caggiano
Starting battery

Awesome so far it weighs 9 lbs and replaced a 60 lb dual purpose battery I had to fabricate a battery holder as it was so small but that took an hour so no big deal starts my 60 horse Suzuki 4 stroke no problem and did I mention it weighs 9 lbs !!

T
Teddy Rogers
Starting Battery

Like the size and weight, I have installed it in my boat but have not had a chance to run it

D
David
Great customer service !!

Wendy at customer service is courteous, proffesional, and prompt ! Great work Wendy !

R
Ryan Robinson
Highly impressed

Highly impressed with the 12v 20ah starting battery. Using it to start my 40hp Mercury Jet. Cut close to 30lbs out of boat by replacing SLA battery.

j
jeff braaten
changed to this to start my 9kw generator works awesome

amazing starts up super quick and 1/3 the size and less than half the weight

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Advantages of Buying from LiTime.com: Benefits, Discounts, And VIP Service
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Risk-Free Warranty

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Why LiTime is Your Best Choice

TOP 1 LiFePO4 Brand

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

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

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.
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.
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

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.

User-Driven Power Stories

See how LiTime batteries are changing the way real users power their lives.
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User Insights
Matt Elliott
The weight difference was incredible. One 6v Battery weighed 63 lbs. this battery 38 lbs!
Reel in Florida
I think the mini is the real star of the show. 100ah in this small a package is perfect for kayaks and other small craft.
Patrick Dwivedi
I love the lighter weight of the battery. I no longer need to call on my trusty neighbors to help me install the battery inside my VW Bus.
Paul Muller
Shipping was extremely fast ( received within two days after placing order). Batteries work like a charm for our camper.
[KellG]
For the performance & reliability, I do recommend this battery
Dan M
The amount of power that this battery can instantly dump into the cart is awesome.
Eric Anderson
Used my new LiTime 12v 200a batteries for the first time this weekend. Couldn’t be happier!
mtkeane
I would say that not only are the products great, but so is the customer service.
Greg Sapp
Very impressed with the quality and the documentation provided by LiTime.
Reel in Florida
The best upgrade you can make!
Artie H
Li Time US , Great customer support services
Andrew Martin
This charger is a beast! Pleasantly surprised so far with LiTime products.
John D. Hollingsworth, Jr.
After many months of debate, I finally bit the bullet and rebuilt my Stealth 4x4 cart with the new batteries.
Customer
So far for my golf cart it's been a great battery I got the 10amp charger also no problems.
Eve Ford
Great customer service! The batteries ran our solar system on our camper with no problem.
Klaus Feldmeier
The replacement was straight forward - the new LiTimes batteries are nearly 50% lighter than the lead acid batteries.
Scott Winebarger
No complaints yet, still building my system, so far, I am impressed
[Timothy Vaughan] Vaughan
Already had my 100ah trolling motor battery out several times and it’s delivered in spades. Very happy with my purchase!
John Hogan
Though I had to reconfigure the base of the robot, I have more than enough battery capacity to run for hours.
Perry Mahnke
It's amazing how much lighter the LiTime Mini batteries are, the conversion was easy, and the fit & finish on the LiTime Minis is great.
Anthony Carita
Love how light this battery is. My mower lost about 100 Lbs of weight. The battery has a nice case and looks top quality.
Rob D.
Great Products. Really Great Support.

Power You Can Trust, Backed By Experts

The Power Behind Experts, Adventures, And The World’s Best
Media
Association
"Globally trusted, LiTime’s innovation in energy solutions sets a new industry standard."
"LiTime combines cutting-edge technology with unmatched reliability, powering users' lives worldwide."
"LiTime’s LiFePO4 batteries provide outstanding performance, making it the top choice for customers."
"LiTime delivers powerful, reliable, and sustainable energy solutions tailored to meet every need."
"LiTime’s customer-centric approach drives the development of unparalleled energy solutions."
"LiTime's energy solutions combine advanced R&D with real-world user insights for unmatched reliability."
"With extensive research backing it, LiTime’s products are engineered for superior quality and durability."
"Renowned for its exceptional battery technology, LiTime is a trusted leader in energy innovation."
"The world trusts LiTime for innovative and dependable energy solutions, powering homes and businesses."
"LiTime's global reputation for excellence is built on performance, reliability, and cutting-edge technology."
"LiTime’s LiFePO4 batteries are the perfect fusion of innovation and reliability for every user."
"LiTime’s commitment to research ensures their products remain at the forefront of energy solutions."
"LiTime's power solutions are trusted by users globally, offering unmatched performance and longevity."
"LiTime’s success stems from combining groundbreaking technology with a deep understanding of customer needs."
"LiTime pioneers the future of energy with innovation, reliability, and sustainability."
LiTime batteries are installed to ABYC E-13 standards, fully compliant with lithium battery requirements.
Powering passion on the water – as a member of IGFA.
Proud Member of GCSAA – Trusted by golf course professionals nationwide.
Member of RVDA – Serving the RV Industry with advanced lithium power.
Powering the RV lifestyle with Escapees-backed lithium technology.
Official FMCA commercial member delivering trusted power for motorhome owners.
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