LiTime 12V 165Ah Bluetooth Lithium Deep Cycle Battery for RV and Marine
The Highest Energy-Density Leader in Group31 LFP Batteries
- Group 31 size with 1.65X more energy than a 12V 100Ah Lithium Battery.
- Bluetooth 5.0 checks the battery system, monitors real-time data, and controls discharge on/off by LiTime APP.
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165A BMS delivers a continuous output of 165A and a peak discharge current of 825A for 1 second.
- 20+ protections with low-temp cut-off, auto-recovery after overload protection (30s), salt-spray resistance, and moisture-proof.
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2112Wh capacity and 2112W continuous output power.
- EV grade LiFePO4 cells, 4000+ cycles@100% DOD, 172.3Wh/L energy density, and internal metal sheet for anti-swelling.
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IP65 waterproof and dustproof rating.
- 4P4S expansion, up to 3379Wh energy & 3379W power.
- 5-year warranty, FCC, CE, RoHS, UN38.3 certified.
- Best lithium battery for RVs, marine, off-grid, home storage, solar systems, and more.
- Please do not use it as a starter battery or for a golf cart.
FedEx, UPS, or Amazon Logistics.
The Highest Energy-Density Leader in Group31 LFP Batteries
LiTime 12V 165Ah LiFePO4 battery delivers class-leading energy in a compact Group 31 size. With 2112Wh of usable power and strong continuous output, it’s built to handle the high demands of RVs, marine systems, off-grid cabins, home backup and solar energy storage.
Maximized Power in a Compact Group 31 Size
Maximized power in the same Group 31 footprint. The 12V 165Ah battery packs up to 1.65× the energy of a 12V 100Ah battery for longer run time in the same compact space
Breaking Limits, 165A BMS & 20+ Protections
The LiTime 12V 165Ah LiFePO4 battery group 31 easily powers high-demand appliances with a 2,112W output and boasts advanced features: Bluetooth 5.0, a 165A BMS, an IP65 waterproof/dustproof rating, and top-tier EV-grade LiFePO4 cells for ultimate reliability.
Versatile Lithium Battery in All Weather Conditions
This 12V 165Ah lithium battery, built with the highest energy density, is engineered for reliable performance in any climate. To protect the cells, charging automatically stops below 32°F (0°C) and resumes at 41°F (5°C). Discharging halts at -4°F (-20°C), ensuring dependable power even in extreme cold.
Monitor Your Battery Anytime with Bluetooth 5.0
Effortlessly monitor and manage your 12V 165Ah group 31 lithium marine battery with advanced Bluetooth 5.0. Enjoy automatic connections and real-time insights into your battery's performance, including state of charge (SOC), voltage, current, power output, life cycles, and temperature. Remotely control discharge settings and even turn off the battery for convenient energy management
High-Performance LiFePO4 Battery for Longevity
Built with EV-grade LiFePO4 cells and industry-leading energy density, this battery is engineered for long-term stability. With ≤2% monthly self-discharge, 4,000+ cycles at 100% DOD, a 10-year maintenance-free design and an internal metal plate to prevent swelling, it delivers years of reliable, worry-free power.
Elevate Your Camping Experience with 2112Wh Power
Transform your RV trips and camping excursions with our 12V group 31 lithium battery. This battery delivers a robust 2112W of continuous output, effortlessly powering high-demand devices such as air conditioners, coffee makers, and electric ovens. Designed for outdoor enthusiasts, it ensures dependable power for both daily use and heavy-duty equipment, keeping your adventures uninterrupted and comfortable.
Build a 33.7kWh Energy Solution for Home and Off-Grid Use
Design your ultimate energy solution with our scalable 33.7kWh (4P4S 48V 660Ah) system. Leveraging high energy density battery cells, this configuration provides superior performance compared to a typical 48V 400Ah system. Ideal for both home energy storage and off-grid living, this system ensures your power needs are met with maximum efficiency and flexibility.
One Battery for Versatile Power Solutions
Trusted Power for Every Journey
Unboxing Video
BATTERY
BMS
CHARGE
TEMPERATURE
OTHERS
12V 165Ah Smart
12V 100Ah
12V 320Ah Mini Smart RV
How long will a 165Ah battery last?
The LiTime 12V 165Ah lithium battery offers 2112Wh of energy, with runtime varying based on load power. For instance, it can power a 1100W air conditioner for 1.92 hours, a 900W coffee maker for 2.34 hours, and a 1000W electric grill for 2.11 hours.
What to Do When You Receive a New Battery?
When you receive your new battery, it might arrive with a low state of charge (SOC) due to transport and storage. To ensure optimal performance, it's important to charge the battery right away to prevent over-discharge.
If your battery features Bluetooth functionality, such as the 12V 165Ah lithium battery, it may come powered off, displaying a terminal voltage between 3V and 5V, which means you won't be able to connect it to your phone. This shipping method helps minimize self-discharge and prolongs the battery's lifespan, similar to how mobile phones are shipped.
To resolve this issue, you can use one of two methods: either an AC-DC lithium battery charger or an MPPT solar charge controller. Simply charge the battery for 3 to 10 seconds to enable normal usage.
If you plan to store the battery for an extended period, charge it to a SOC of 50% and perform maintenance checks every three months. This practice will help maintain its functionality and performance.
How to Charge the 12V 165Ah Deep Cycle Battery?
The LiTime 12V 165Ah battery can be charged in four different ways:
1. Solar Panels and Controller
- Recommended Solar Power: ≥700W
- The battery can be fully charged in one day with 700W solar panels, assuming effective sunlight for about 4.5 hours.
2. Battery Charger
- Use a lithium iron phosphate (LiFePO4) battery charger to maximize capacity.
- Recommended Charging Voltage: Between 14.2V and 14.6V
- Recommended Charger: LiTime 14.6V 40A Charger
Tip: It's advisable to disconnect the charger from the battery once charging is complete.
3. Generator
- Recommended: LiTime 14.6V 40A Charger
- Recommended Charging Voltage: Between 14.2V and 14.6V
4. Alternator
- Recommended: LiTime 12V 40A DC - DC Charger
- Recommended Charging Voltage: Between 14.2V and 14.6V
By utilizing these charging methods, you can efficiently maintain the performance and longevity of your LiTime 12V 165Ah battery.
Can I Charge LiTime LiFePO4 Lithium Batteries in Cold Weather (Under Freezing Temperatures)?
Yes, LiTime 12V 165Ah LiFePO4 batteries can safely charge between 0°C to 50°C / 32°F to 122°F. The 12V 165Ah has been upgraded with low-temperature cut-off protection; therefore, the battery can automatically cut off charging and discharging under low temperatures to protect its lifespan and performance.
Read on LiFePO4 Temperature Range Guide for more detailed temp instructions of using the lithium batteries.
Do You Have a Battery Box for Group 31?
Yes, LiTime has a portable battery box for group 31. Built-in voltmeter allows it to be used for marine and RV applications, fitting group size 24, group size 27, and group size 31 batteries.
Can I Use the Battery to Start the Car Engine?
No. As a type of deep cycle battery, please DO NOT use it as a starter battery for any type of vehicle, such as cars, motorcycles, tractors, etc. For marine starting applications, please visit LiTime Marine Starting Batteries.
Can I Connect the Battery in Series or Parallel?
Yes, the 12V 165Ah lithium battery supports a maximum configuration of 4 in series and 4 in parallel, allowing for a 48V 660Ah energy system that offers more power than a 48V 400Ah setup.
With a capacity of 33.7kWh, you can enjoy long-lasting energy for essential appliances—run your fan, fridge, and TV with ease, or power high-demand devices like washing machines, microwaves, and air conditioners without interruptions. This makes it ideal for home storage systems and off-grid living, ensuring that your power needs are always met.
Note: To connect batteries in series or parallel, they must meet the following conditions:
They should be identical batteries with the same capacity (Ah) and battery management system (BMS) rating (A).
They must be from the same brand, as lithium batteries from different brands have unique BMS configurations.
They should be purchased within a close timeframe (ideally within one month).
Can Bluetooth and non-Bluetooth batteries be connected in series or parallel?
It is strongly not recommended. Only Bluetooth-enabled batteries can be monitored individually, while the system as a whole cannot be tracked. Mixing them may compromise total capacity and system performance.
Is the BMS passive or active balancing?
The battery uses passive balancing technology, which safely manages cell voltage differences to maintain battery longevity and stability.
What does a LiTime group 31 lithium battery fit?
A LiTime Group 31 lithium battery is designed to fit standard Group 31 battery trays and compartments, making it suitable for RVs, campers, boats, off-grid power systems, and other applications where a Group 31 size battery is required.
What's the difference between a group 24 and a group 31 lithium battery?
Group 31 lithium batteries are physically larger and have higher capacity/energy than Group 24 batteries. Group 24 units are smaller with lower Ah capacity, while Group 31 units deliver more power and longer runtimes in the same battery category.Learn more about differences Between Group 24 VS Group 31 Battery.
The battery is working well so far, and I especially love the app for monitoring its life. I've also created a YouTube video demonstrating its functionality.
https://youtu.be/s89wPDzH-B8
Bought the 165 Amp hour battery for my fishing graphs and Livescope. This battery I can charge every 3 days of fishing vs the Group 31 AGN I was using.
I have used these batteries for the last three months and I am absolutely pleased with her performance top-notch batteries, highly recommend them
This 12v 165Ah battery is the latest addition to my LiTime collection. I have 48v smart batteries for home energy storage (worked great in this latest ice storm) and now am adding 12v 165Ah smart batteries to the team! I have standardized on LiTime; quality products and great customer service! They won't let you down.
Bought for the camper. Much better than a lead acid battery
Took it out for 6hrs and I had plenty of power left. Time will tell how it will hold up next season. As of now, it’s works as it should.
So far so good.
Easy app connection. Very light and works flawlessly.
I build an overland auxiliary battery box for the back of my tundra. The Li Time 165ah battery is perfect. I love the blue tooth battery monitoring. I couldn’t be happier with this product.
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Advantages of Buying from LiTime.com: Benefits, Discounts, And VIP Service
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.
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
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.User-Driven Power Stories
See how LiTime batteries are changing the way real users power their lives.
Power You Can Trust, Backed By Experts
The Power Behind Experts, Adventures, And The World’s Best
