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overview of litime 12v 400ah deep cycle lithium battery

400ah battery with 250A BMS, detailing 5 key protections, 250A max current, and low self-discharge rate

dimension of litime 12v 400ah lithium 8d battery:20.47*1059*8.66 in at 86 lbs weight

LiTime 12V 400Ah LiFePO4 battery cutaway showing TOP EV Grade-A cells, rated for 4000 cycles at 100% DoD

features of LiTime 12v 400Ah lithiu iron battery: 5120wh energy, grade-a cells, ip65 waterproof and more

litime 12v 400ah lifepo4 battery 10+ service life for rv, marine, off-grid and home storage

LiTime 12V 400Ah LiFePO4 battery powers a camper van kitchen with 5120Wh, 3200W load

comparison showing a LiTime 12V 400Ah battery saving 37% space and 67% weight vs four 100Ah batteries

Professional safety certifications for LiTime batteries: UL 1973, CE, FCC, RoHS, and UN38.3

a 2-pack of litime australia 12v 400ah lithium battery

a 3-pack of litime australia 12v 400ah lithium battery

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Features

IP-65 Waterproof

LiTime 12V 400Ah LiFePO4 Lithium Battery with 250A BMS

A$1,599.99

A$2,599.99

38% OFF

One 12V 400Ah Battery to Be Your Final Solution

-Equal to the energy of 4*12V 100Ah LiFePO4 batteries
-5120Wh Usable Energy, 3200W Load Power
-250A BMS, 20+ Protection Secure Battery's Health
-Max. 250A Continuous Dis/Charge Current, 500A(5s) of High Continuous Discharge Current
-EV Grade-A Cells, 4000+ cycles @100%DOD
-Max 81.92kWh Usable Energy (4P4S)
-Only 37.5Kg 40% Lighter than 4* 12V 100Ah Lead-acid Batteries in parallel
-61Wh/lbs High Energy Density
-Suitable for solar systems/RVs/marine/heavy-duty trucks/off-grid and home storage
-IP65 Waterproof & Dustproof
-4 Charging Ways (LiFePO4 charger, Solar, Generator, Alternator)
-Free Maintenance, Lower Maintenance Fee-Fast Delivery from NSW warehouse & Excellent Customer Service
-DO NOT use as Starter Battery

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Comparison

1 Pack

A$1,599.99 A$2,599.99

2 Pack

A$3,103.98 A$5,147.98

3 Pack

A$4,655.97 A$7,643.97

4 Pack

A$6,143.96 A$10,399.96

12V 400Ah battery + 12V 40A charger (Save 5% off)

A$1,922.99 A$3,068.99

Quantity:

A$1,599.99

A$2,599.99

38% OFF

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5 Years Warranty

Backed up by techical support within 24hrs

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Free standard shipping on all orders

Free Returns

30 Days Hassle Free Returns

12V 400Ah

A$1,599.99

A$2,599.99

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FEATURES SPECS FAQ REVIEWS

Unlock Energy with the LiTime 12V 400Ah LiFePO4 Battery

The LiTime 12V 400Ah battery provides reliable, long-lasting energy storage. Its large 400Ah capacity makes it ideal for residential, recreational, off-grid and commercial solar applications that require clean, renewable energy solutions.

LiTime 400Ah LiFePO4 battery: 250a bms, 5120Wh energy, 5-year warranty, 10-year lifespan

One Solution to Power All Your Needs

With an immense 5120Wh capacity provided by premium EV Grade-A cells, one 12V 400Ah battery equals 4* 12V 100Ah LiFePO4 batteries in parallel. You can have peace of mind knowing its energy is always smooth and safe and will last for 10 years to come.

LiTime 12V 400Ah LiFePO4 battery powers a camper van with 5120Wh, 3200W load

Top EV LiFePO4 Cells

LiTime 12V 400Ah battery powers your life safely and sustainably through top EV Grade-A Lithium Iron Phosphate cells. It can be charged up to 4000+ times at 100% DOD over 10+ years of high performance.

litime 400ah battery features with EV Grade-A cells with 4000+ deep cycles, over 10 years of service life, and green certification

250A BMS Safeguards Your Battery

With LiTime's upgraded 250A Battery Management System, you can trust your battery is thoroughly safeguarded. Advanced protections shield against overcharge, over-discharge, overheating(167℉), overcurrent (250A) and short circuit. Advanced BMS has your battery and our environment's best interests at heart.

LiTime 400Ah lithium battery with Advanced 250A BMS for 100% protection and low 3% self-discharge

Up to 81.92kWh Energy

With LiTime 12V 400Ah LiFePO4 batteries expanded to a 4P4S battery system. Unlock a massive 81.92kWh of versatile energy and say goodbye to limitations. You can customize your power solution perfectly by combining multiple units. Have the flexibility to add more capacity whenever life demands it.

Expandable 400Ah lithium battery bank. Connect up to 4P4S for a massive 81.92kWh energy system

Unbeatable Advantages Over Lead-Acid Batteries

Compared with lead-acid batteries, the LiTime 12V 400Ah lithium battery simply can't be beat for ease and portability. Weighing just 86 lbs is 1/3 the weight of equivalent lead acid batteries. Power your home, cabin, RV or worksites without stressing over heavy lifting or space constraints.

LiTime 400Ah lithium battery: 67% lighter and 200% more usable energy than lead-acid

Tailored Energy Companion on Life's Adventures

As a versatile and durable energy partner, the powerful LiTime 12V 400Ah LiFePO4 battery seamlessly fuels all your indoor and outdoor needs. Power solar houses or boats, fuel RVs or backup home power with ease.

uses of litime 400ah lithium battery:rvs, marines, off-grid and more

Faster Charging Efficiency

The LiTime charges at 1C speed to give you continuous power.
Unlike outdated lead-acid batteries with 0.1C charging speed, the LiTime accepts charges from solar, alternators, generators or other LiFePO4 batteries without constraints.

charging ways of litime 12v 400ah lifepo4 battery: charger, solar panel, alternator and generator

One-Step Power Solution

Don't have to worry about compatibility and complex power assemblies. The LiTime 12V 400Ah battery simplifies setup with a streamlined one-step solution. Just install it and watch the juice flow.

LiTime 12V 400Ah LiFePO4 battery with a 3000W inverter, wiring, and various accessories

Reliable and Unbeatable Service

Enjoy responsive online and phone assistance from our expert technical staff. Receive helpful feedback within 24 hours to quickly resolve any issues. Batteries are shipped efficiently within 2-5 business days of order from local warehouses across Australia.

SPECS

BATTERY

Cell Type：

LiFePO4 Prismatic

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：

400Ah

Energy：

5120Wh

Max. Expansion (Parallel & Series)：

4P4S

Internal Resistance：

≤40mΩ

Certifications：

UL, FCC, CE, RoHS, UN38.3

BMS

BMS：

250A

Max. Continuous Output Power：

3200W

Max. Continuous Charge Current：

250A

Max. Continuous Discharge Current：

250A

Max. Discharge Current 5 Seconds：

500A

CHARGE

Charge Method：

CC/CV

Charge Voltage：

14.4V ± 0.2V

Recommend Charge Current：

80A (0.2C)

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：

N/A

Low-Temperature Charging Protection Auto Recovery：

N/A

SELF-HEATING

Heating Temperature：

N/A

Approx. Heating Time：

N/A

Required Minimum Charge Current for Heating Function：

N/A

OTHERS

Terminals：

M8 bolts

Weight Approx.：

37.5Kg

Size：

L52*W26.9*H22 cm

Housing Material：

ABS

Protection Class：

IP65

FAQ

Are LiTime LiFePO4 batteries safe?

Yes. LiFePO4 is an inherently safe chemistry and the most stable lithium-type battery on the market. LiTime lithium cells are UL certified for the highest safety and sustainability standards. All LiTime LiFePO4 batteries come with an internal Battery Management System which protects against under-voltage during discharge, over-voltage during charge, over-current during discharge, over-temperature during charge and discharge, and short-circuit protection – protects battery cells from damage. Additionally, LiTime LiFePO4 Lithium batteries have been tested to be free from the risk of fire, and electric shock in harsh environments.

How long will a 400Ah lithium battery last?

The runtime of our 12V 400Ah battery depends entirely on the power draw (watts) of the appliances you connect. With a massive 5120Wh of usable energy, it can power your essential devices for hours or even days.

Here are some real-world examples based on continuous use:

Air Conditioner (1100W): up to 4.6 hours
Microwave (1000W): up to 5.1 hours
Washing Machine (500W): up to 10.2 hours
TV (100W): up to 51 hours
Fridge (50W): up to 102 hours
Fan (40W): up to 128 hours

Quick Tip: To estimate the runtime for your own devices, use this simple formula:
Runtime (in hours) = 5120 / (Wattage of your device)

Can I use LiTime LiFePO4 Lithium batteries as starting batteries?

No. LiTime LiFePO4 lithium batteries are not intended to be used as starting batteries but energy storage, please do not use them to start any devices.

How do I charge the 12V 400Ah LiFePO4 battery?

Our 12V 400Ah battery is designed for flexible charging. There are three primary ways to charge it, all of which require a charger compatible with LiFePO4 chemistry.

1. Solar Panels
Yes, you can charge your battery using the sun. A quality MPPT solar charge controller is required to manage the power safely and efficiently.

With 1200W of solar panels, you can fully charge the battery in a single day, assuming approximately 4.5 hours of peak sunlight.

2. Vehicle Alternator or Generator
You can charge on the go or with backup power.

From your vehicle's alternator: A DC-to-DC charger is the recommended tool for a safe and effective charge while driving.
From a generator: Use a compatible LiFePO4 smart charger that converts the generator's AC output to the correct DC power for the battery.

3. LiFePO4 Smart Charger (Standard AC Outlet)
This is the most direct method. Simply connect a dedicated LiFePO4 smart charger to the battery and plug it into a standard wall outlet.

Recommended Charge Settings

For methods 2 and 3, use a charger with the following settings for optimal performance and speed:

Charge Voltage: 14.2V to 14.6V
Charge Current:Standard (80A / 0.2C): Reaches 100% full charge in about 5 hours.Fast (200A / 0.5C): Reaches ~97% charge in about 2 hours.

Can I charge LiTime LiFePO4 lithium batteries in cold weather (under freezing temperatures)?

Please be aware that this 400Ah model does not featured low-temp protection and should only be charged when the battery's temperature is above 32°F (0°C). Charging in freezing temperatures will damage the cells. On cold days, the best practice is to bring the battery indoors to charge.

For Charging in Freezing Temperatures: If your application requires charging in sub-zero weather (e.g., winter RVing, off-grid cabins), consider our LiTime 12V 280Ah Lithium Battery. The battery includes a built-in system (low-temperature charging off protection) that automatically manages charging in the cold, protecting your investment.

How do I store LiTime LiFePO4 lithium batteries?

Proper storage is the key to ensuring your LiTime LiFePO4 battery delivers years of reliable performance. Follow these simple steps to protect your investment when the battery is not in use.

1. Aim for a 50% Charge
Before storing, bring your battery to approximately 50% State of Charge (SOC). Avoid leaving it fully charged or completely empty. For storage longer than three months, simply recharge it back to 50% every 3 months to keep the cells healthy and balanced.

2. Disconnect from Your System
Ensure the battery is completely disconnected from all chargers and devices (loads). This prevents "phantom drains" that can slowly deplete the battery and cause irreversible damage over time.

3. Find the Right Environment
Store your battery in a cool, dry, and stable location.

Temperature: The ideal range is 14°F to 122°F (-10°C to 50°C).
Humidity: Aim for a relative humidity between 45% and 75%.
Key Tip: Always avoid extreme heat, as it can permanently reduce your battery's total capacity.

4. Keep it Protected
We recommend storing your battery in a battery box. This shields it from moisture, dust, and accidental impacts, ensuring it's in perfect condition when you need it next.

5. "Waking Up" After Storage
After a long storage period, it's best practice to "wake up" the battery with one complete cycle (a full charge followed by a full discharge) before putting it back into regular service.

What is the typical application for a 12V 400Ah lithium battery?

Typical applications include RVs, marine vessels, solar home energy storage, off-grid power systems and industrial equipment.

Can I connect multiple LiTime 400Ah batteries together?

Yes! You can significantly expand your power system by connecting multiple LiTime 12V deep cycle batteries. This allows you to increase voltage for more powerful equipment or increase capacity (Ah) for longer runtimes.

Here are your options:

Series (For Higher Voltage): Connect up to four identical batteries to create a 24V, 36V, or even a 48V system.
Parallel (For More Capacity): Connect up to four identical batteries to create a massive energy bank, up to 1600Ah.
Series-Parallel (Max Power & Capacity): For the ultimate setup, build a bank of up to 16 identical batteries in a 4S4P configuration.

Critical Matching Rules

For safety and performance, all connected batteries MUST meet these conditions:

Same Model: Must be the same brand, capacity (Ah), and BMS rating.
Same Age: Purchase all batteries within one month of each other.
Balanced Voltage: Before connecting, fully charge each battery and ensure their voltages are within 0.1V of each other.

REVIEWS

400ah

Haven’t use battery yet, but was shipped securely and great value.

Great price, fast delivery. Love the product!

Working well thanks

Great customer service and product (400Ah)

Got prompt responses from the support team, hassle free shipping. Product came well packaged. Installed with no probs👍🏽

Fast and secure delivery, the battery works fantastic, good deal.

1 2

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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.

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.

LiTime 12V 200Ah LiFePO4 Lithium Battery

Recommended Operating Temperature

Charging: 32°F ~ 122°F / 0°C ~ 50°C Discharging: -4°F ~ 140°F / -20°C ~ 60°C Storage: 14°F ~ 122°F / -10°C ~ 50°C

Battery Application

Do not do not use the battery as a starting battery or power battery for electric vehicles or golf carts.
It is suitable for the 12V Trolling Motor within 70lbs thrust.

Recommended Discharging Settings

Under Voltage Warning:11.6V
Under Voltage Recover:12V
Low Voltage Disconnect:10.8V
Low Voltage Reconnect:12.4V

Recommended Charging Settings

Charge/Bulk Voltage:14.4V/14.6V
Absorption Voltage:14.4V/14.6V
Over Voltage Disconnect:15V
Over Voltage Reconnect:14.2V

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LiTime 12V 400Ah LiFePO4 Lithium Battery with 250A BMS

Unlock Energy with the LiTime 12V 400Ah LiFePO4 Battery

One Solution to Power All Your Needs

Top EV LiFePO4 Cells

250A BMS Safeguards Your Battery

Up to 81.92kWh Energy

Unbeatable Advantages Over Lead-Acid Batteries

Tailored Energy Companion on Life's Adventures

Faster Charging Efficiency

One-Step Power Solution

Reliable and Unbeatable Service

SPECS

BATTERY

BMS

CHARGE

TEMPERATURE

SELF-HEATING

OTHERS

FAQ

Are LiTime LiFePO4 batteries safe?

How long will a 400Ah lithium battery last?

Can I use LiTime LiFePO4 Lithium batteries as starting batteries?

How do I charge the 12V 400Ah LiFePO4 battery?

Recommended Charge Settings

Can I charge LiTime LiFePO4 lithium batteries in cold weather (under freezing temperatures)?

How do I store LiTime LiFePO4 lithium batteries?

What is the typical application for a 12V 400Ah lithium battery?

Can I connect multiple LiTime 400Ah batteries together?

Critical Matching Rules

REVIEWS

Customer Reviews

Advantages of official website

Official Website Discount

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

Recommended Operating Temperature

Battery Application

Recommended Discharging Settings

Recommended Charging Settings

GENERAL

CHARGE

BATTERY

BMS

TEMPERATURE

PACKAGE

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