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Features
2-5 Business Days Delivery
30-Day Money Back
5 Years Warranty
[Like New] Power Queen 12V 300Ah Deep Cycle Lithium Battery
$524.39
Condition: Like New
This battery has been either newly unboxed or lightly used for approximately 3–5 days. It may show minor cosmetic scratches on the exterior, but it is fully functional. Voltage and internal resistance are within normal operating ranges, and the battery performs like new. A 5-year warranty is included for your assurance.
[Pre-purchase instructions] The like-new batteries were purchased by customers who mistakenly bought the wrong capacity or incompatible batteries for their applications. We assure you that our batteries are thoroughly checked and tested before delivery ( only a few have minor scratches on the surface). Our like-new batteries come with a 4-year warranty, while our used-very good batteries have a 3-year warranty.
[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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Quantity
Frequently Purchased
Total
$524.39
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
$524.39
Features
Specs
FAQ
Reviews
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.：
64.15 lbs
Size：
L20.55*W9.45*H8.58 inch
Housing Material：
ABS
Protection Class：
IP65
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FAQ
Which lithium battery lasts the longest?
When it comes to battery longevity, lithium iron phosphate (LiFePO4) batteries lead the pack. They can last up to 4,000 to 5,000 cycles before their capacity noticeably decreases, making them one of the longest-lasting lithium battery types available. This makes them perfect for users who need durability and long-term reliability. If you're looking for a dependable option, our LiFePO4 batteries are designed for extended use and consistent performance. With a strong casing and high cycle life, these batteries are an excellent investment for anyone prioritizing longevity.
How to test a 12V lithium battery?
Testing a 12V lithium battery is simple with a multimeter. Set the multimeter to DC voltage, then connect the positive and negative probes to the corresponding terminals of the battery. A fully charged 12V lithium battery should show a reading between 12.8 and 13.4 volts. If the reading is lower, it could mean the battery is partially discharged or may be starting to degrade. Regular testing helps ensure your battery remains in top condition, preventing unexpected power issues. If you're unsure or need help, feel free to contact us, and we’ll be happy to assist you with testing and battery maintenance tips.
How can you tell if a lithium battery is bad?
There are several signs that indicate your lithium battery may be going bad. Physically, you might notice swelling, leakage, or unusual heat. If the battery starts to bulge or gives off a strange smell, it's time to stop using it immediately. Performance issues, such as the battery not holding a charge as well as it used to, can also indicate the battery's nearing the end of its life. Additionally, corrosion around the terminals or damaged wiring can signal trouble. If you encounter any of these issues, we recommend replacing the battery to avoid potential safety hazards.
Can you overcharge a 12V lithium battery?
Yes, it is possible to overcharge a 12V lithium battery, but modern lithium batteries are usually equipped with protection systems to prevent this. Overcharging can generate excessive heat, leading to a condition called thermal runaway, which can cause the battery to overheat and, in extreme cases, catch fire or explode. To avoid this, it's crucial to use the correct charger and follow proper charging practices. Our batteries, for example, come with built-in safeguards to ensure they operate safely and efficiently, but it's always important to handle them with care.
What is the biggest problem with lithium batteries?
The main concern with lithium batteries is their sensitivity to heat. If charged too quickly or exposed to high temperatures, they can overheat, which may pose safety risks. This can include, in rare cases, fire or even explosion. While lithium batteries offer excellent efficiency and a long lifespan, the chemicals inside them are more flammable compared to other battery types. Additionally, they don't perform well in extremely hot or cold environments, which can affect their overall reliability. That’s why it's essential to follow proper usage and storage guidelines to ensure both safety and longevity.
What is the lifespan of a 12V lithium battery?
A quality 12V lithium battery typically lasts between 2,000 and 5,000 charge cycles before its performance starts to degrade. Compared to other battery types, this offers a much longer lifespan. To maximize the life of your battery, avoid extreme temperatures, as these can significantly impact its longevity. With proper care and storage, you can expect several years of dependable performance before needing to consider a replacement. Keeping the battery charged and stored in moderate conditions will further help extend its life.
What is the difference between 12V regular and 12V deep cycle?
The main difference between a 12V normal battery and a 12V deep cycle battery is how they deliver power. A normal battery, like a car battery, is designed to provide a quick burst of high power to start an engine, but it can’t handle deep discharges well. In contrast, a deep cycle battery is built with thicker plates and is designed to provide steady power over a longer period. It can be discharged and recharged many times without damage, making it ideal for applications like solar power systems or RVs, where consistent energy over time is needed.
Why is 12V so popular?
12V lithium batteries are popular because they are compatible with many common devices and systems, including cars, boats, and solar setups. Their popularity comes from the fact that 12V has been the standard for a long time, especially in vehicles. Lithium batteries offer a better alternative to older battery types because they are lighter, last longer, and perform more efficiently. This makes 12V lithium batteries a preferred choice for modern applications that need reliable and consistent power.
