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Features
2-5 business days shipping
30-Day Money back
5 Years Warranty
Hot
Power Queen 12V 300Ah Deep Cycle Lithium Battery
$559.99
$1,036.34
👍HOBOTECH RECOMMENDED: Affordable Lithium Battery and Direct Replacement for Lead Acid Batteries
[3.84kWh Usable Energy & Longer Performance] A full charge on Power Queen 12V 300Ah LiFePO4 battery can support 3.84kWh energy for 90% appliances, like running a 200W heater mat nonstop for 19 hours in winter. This lithium battery has a great 300Ah capacity with a low self-discharge rate, the depth of discharge of our battery is about 100%, which provides 40% more usable power than the 300Ah lead-acid battery.
[200A BMS With 2560W Max. Load Power] Power Queen 12V 300Ah LiFePO4 battery has a built-in 200A BMS (Battery Management System) to protect it from overcharge, over-discharge, over-current, and short circuits. Our battery has 4 cells inside, the automotive grade cells are high-density and stable, it’s safe when used in our daily life and friendly for the environment. And 2.56kW Max. Load Power would allow us to connect more common applications simultaneously to enjoy a more convenient life.
[2X Storage Capacity] Compared with lead-acid batteries, which can only discharge 60% of energy, our 12V 300Ah LiFePO4 battery has more than double the storage capacity for the same footprint.
[Max. 61.44kWh Energy Expansion] Power Queen 12V 300Ah batteries support a max 4S4P connection to reach up to 61.44kWh usable energy, which could be widely used for home solar systems, emergency backup power systems, and RV trips.
[ Fast Shipping] We provide free shipping for our Lithium Battery. Customers can receive the battery within 2~5 workdays due to our local warehouses in CA, TX, GA, and so on.
Attention Please: This battery is NOT suitable to be used as a starter battery, golf cart battery, or for high-power applications such as water pumps, electric jacks, lifts, vacuum cleaners, four-wheel drive lawn mowers, etc., for more info please consult Power Queen: service@ipowerqueen.com
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$559.99
$1,036.34
Fast Free Shipping
2-5 business days in the US
Easy Return & Exchange
Not satisfied? We offer a hassle-free 30-day return and exchange policy.
Hassle-Free Warranty
We offer a worry-free warranty for all products. For details, check the product page or contact us at service@ipowerqueen.com with your order number.
Lifetime Customer Support
We'll Always be There for You. If you have any questions or concerns, feel free to contact us at service@ipowerqueen.com.
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12V 300Ah
$559.99
$1,036.34
FEATURES
SPECS
FAQ
REVIEWS
Power Queen 12V 300Ah Lithium Battery: Ready for Any Challenge
We are excited to introduce our Power Queen 12V 300Ah lithium battery, designed for reliable power storage across various applications. Ideal for home storage, RVs, marine, off-grid systems, UPS, and trolling motors, this robust battery ensures long-lasting performance and security in all conditions.
One Powerful Battery. Fewer Connections. More Space.
Ditch the mess of multiple batteries. The Power Queen 12.8V 300Ah LiFePO₄ gives you the same capacity as three 100Ah units — with up to 27% less space and far fewer connections. Smarter design, easier setup, and more room where it matters.
Superior to Lead-Acid Batteries
Power Queen 12V 300Ah lithium battery offers double the energy capacity of traditional lead-acid batteries. Compared to a 12V 300Ah lead-acid battery, Power Queen’s lithium battery is 1/3 lighter and provides 2X the energy density.
Advanced Self-Developed BMS for Optimal Safety
The Power Queen 12V 300Ah battery comes with a reinforced 200A BMS for optimal performance and protection. It offers over 20 safety features, including protections against overcharging, over-discharging, over-current, short circuits, high temperatures. A 30-second self-recovery feature also ensures long-term reliability.
From coffee maker to AC — all at once
With 200A continuous current, 800A peak, and 2560W output, the Power Queen 12.8V 300Ah LiFePO₄ battery handles all your appliances at the same time — from kitchen to climate control. Perfect for RVs, off-grid life, and high-demand setups.
Reliable Energy for Your Whole Home Routine
From fridge to AC, oven to kettle — Power Queen 12.8V 300Ah delivers steady power for every family need. Scale up from 1 to 4 days of off-grid living with zero compromise on comfort.
Certified for Quality and Safety
The Power Queen 12V 300Ah battery undergoes rigorous testing and is certified by UL, FCC, CE, RoHS, and UN38.3. Every unit passes strict performance and safety standards, ensuring that you receive a top-quality product.
Fits Every RV. Powers Every Adventure
From camper trucks to Class A motorhomes, the Power Queen 12V 300Ah battery scales effortlessly with your power needs. Whether it’s a weekend trip or full-time life on the road, just pick the setup, stack the power, and go farther.
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：
300Ah
Energy：
3840Wh
Max. Expansion (Parallel & Series)：
4P4S
Internal Resistance：
≤40mΩ
Certifications：
UL, FCC, CE, RoHS, UN38.3
BMS
BMS：
200A
Max. Continuous Output Power：
2560W
Max. Continuous Charge Current：
200A
Max. Continuous Discharge Current：
200A
Max. Discharge Current 5 Seconds：
400A
CHARGE
Charge Method：
CC/CV
Charge Voltage：
14.4V ± 0.2V
Recommend Charge Current：
60A (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℉
OTHERS
Terminals：
M8 bolts
Weight Approx.：
57.76lb
Size：
L20.55*W9.45*H8.58 inch
Housing Material：
ABS
Protection Class：
ABS
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FAQ
Are Power Queen LiFePO4 batteries safe?
Yes, LiFePO4 is an inherently safe chemistry and is considered the most stable lithium battery type on the market. Power Queen lithium cells are UL certified, meeting the highest standards for safety and sustainability. Each Power Queen LiFePO4 battery comes equipped with an internal Battery Management System (BMS) that offers protection against under-voltage during discharge, over-voltage during charge, over-current during discharge, over-temperature during both charge and discharge, and short circuits, safeguarding the battery cells. Additionally, Power Queen LiFePO4 lithium batteries have been rigorously tested to ensure they are free from the risk of fire and electric shock, even in harsh environments.
Can I use Power Queen LiFePO4 lithium batteries as starting batteries?
No, Power Queen LiFePO4 lithium batteries are specifically designed for energy storage and are not suitable for use as starting batteries. Avoid using them to start any devices.
For more information, explore the differences between Deep Cycle and Starting Batteries.
Can this battery be used in series to build a 48-volt system?
Yes. Power Queen 12V deep cycle lithium batteries can be connected 4 in series to create a 48V battery system.
Note: DO NOT connect batteries with different chemistries in series or parallel:
1. Batteries must be similar in terms of capacity (Ah) and BMS (A).
2. Batteries from the same brand are preferred, as different brands have unique BMS.
3. Batteries should be purchased within a month.
How many Power Queen 12V 300Ah lithium Batteries can I connect at most?
The 12V series batteries offer flexible connection options, including series, parallel, and series-parallel configurations. You can connect up to four 12V 300Ah batteries in series, four in parallel, or up to sixteen in a series-parallel setup, achieving a total capacity of 40.96 kW and 61.44 kWh of energy.
Ensure that batteries of the same model and similar capacity are used for these configurations.
How do I store Power Queen LiFePO4 lithium batteries?
It is recommended to store Power Queen LiFePO4 batteries at 50% state of charge (SOC). If the batteries are stored for long periods, cycle the batteries at least every 6 months. Recommended storage environment: 10℃～35℃ (50℉～95℉), 45%RH～75％RH.
Can I charge Power Queen LiFePO4 lithium batteries with solar panels?
Yes, you can charge Power Queen LiFePO4 lithium batteries with solar panels. Here are 3 recommended ways to charge LiFePO4 lithium batteries.
1. Using Solar Panels
The Power Queen 12V 300Ah lithium battery can be fully charged by in one day (with effective sunshine 4.5hrs/day) by 1200W solar panels. It may take more than one day to fully charge the battery by ≥1200W solar panels since the duration and intensity of light would be a great factor for their charging efficiency.
2. Generator/Alternator
If the alternator or generator supports DC output, a DC-to-DC charger is needed to connect the battery to the generator; if your alternator or generator supports AC output, please add a suitable battery charger to connect the battery and the generator according to our recommendations.
The Recommended Charging Voltage: 14.2V - 14.6V. The Recommended Charging Current: ① 60A (0.2C): the battery will be fully charged in around 5 hrs to 100% capacity; ② 150A (0.5C): the battery will be fully charged in around 2 hrs to around 97% capacity.
3. LiFePO4 Smart Chargers
To charge 12V battery, it is recommended to use 14.6V battery charger.
The Recommended Charging Voltage: 14.2V - 14.6V.
The Recommended Charging Current: ① 60A (0.2C): the battery will be fully charged in around 5 hrs to 100% capacity; ② 150A (0.5C): the battery will be fully charged in around 2 hrs to around 97% capacity.
Related reading: Can I Charge a Lifepo4 Battery With a Lead Acid Charger?
REVIEWS
Empowering Every Generation
Power Queen – a family-first, LiFePO₄ battery brand inspired by strength, care, and sustainable living.
service@ipowerqueen.com
Empowering Every Generation
Power Queen – a family-first, LiFePO₄ battery brand inspired by strength, care, and sustainable living.
service@ipowerqueen.com
