Power Queen 12.8V 100Ah LifePO4 Battery Review

The Power Queen Crew recently asked us to do a review on their 12.8V 100Ah LifePO4 Battery.

Upon arrival, we conducted charge-discharge cycle tests to determine whether the theoretical 1280Wh energy capacity was correct.

After a series of trials, data gathering, and some thinking, we believe the Power Queen 12.8V 100Ah LifePO4 Battery is a budget-friendly lithium-ion battery that is perfect whether it stays in your home, trailer, or RV. 

We do not recommend this product as your on-the-go power supply for outdoor camping. It will require too much setup and tear-down time. Not to mention, a bare solar setup with exposed terminals is highly susceptible to the elements. Instead, we recommend you use a PPS.

9.1Expert Score
Power Queen 12.8V 100Ah LifePO4 Summary

A 100Ah Battery that’s perfect for solar roof energy storage or solar RV applications. Rated energy is as advertised.

Capacity
9.2
Value for Money
9.1
Longevity
9.3
Post-Purchase Assistance
8.9
Portability
9
Safety
8.8
Output and Input Features
9.3
Build and Aesthetics
8.9
What We Liked
  • Long Life (4000+ Cycles)
  • Lightweight Compared to SLA
  • High Charge/Discharge Current Rating
  • 5-Year Warranty
  • Accurate Energy Rating
Considerations
  • New Player Compared to Others
  • No Long-Term Confirmation of 4000+ cycle claim
  • LFP batteries have a hard time charging at low temperatures.
9.1
Power Queen 12.8V 100Ah LifePO4 Battery Review

Power Queen 12.8V 100Ah LifePO4 Best Value

The Power Queen 12.8V 100Ah LifePO4 is a budget-friendly lithium-ion battery that is perfect for your home, trailer, or RV. 
A Snapshot of What's in Store for Today's Product Review.
A snapshot of what’s in store for this product review.
Capacity Test on the Power Queen 12.8V 100Ah LifePO4 Battery.
Capacity test on the Power Queen 12.8V 100Ah LifePO4 battery.

So, without further ado, it’s time for you to find out why now is the perfect time to buy LFP batteries and how they blow SLA out of the water.


Recent Trends Regarding LifePO4

Among the lithium-ion battery types, experts expect LifePO4 Lithium-Ion (LFP) to gain market share in the future. The main reason manufacturers are shifting to LFP is to reduce their dependency on the price of certain raw materials.


SLA Vs. LFP

Many comparative studies support the claim that LFP surpasses its predecessor, the sealed lead acid (SLA) chemistry, in techno-economic categories.

Simply put, LFP has better battery performance and offers a better bang for your buck.

The growing preference for LFP over SLA and other lithium-ion variants is all thanks to recent trends showing lower LFP prices per energy unit ($/kWh).  

What is driving this trend?


LFP Vs. Other Lithium-Ions

Based on our research, major EV players like Tesla want to reduce dependency on high-cost battery raw materials (e.g., Cobalt and Nickel). Instead, they are turning to LFP as the most viable cell chemistry, optimizing it for various applications such as appliances, EVs, and solar generators.

Is LFP the king of lithium-Ion? It depends on the application and features you are looking for, but the main observation is the downward price trend.

Most of us agree that the 90% lithium-ion price drop from the past decade is insane. 100Ah LFP batteries nowadays range between $300 and $400, from $600-$800 a couple of years back.

Since 2010, Lithium-Ion Battery Prices have Dropped Almost 90%!
Since 2010, lithium-ion battery prices have dropped almost 90%!
Source: Statista.com.

As a result, many LifePO4 battery brands have been popping up left and right on well-known e-commerce sites like Amazon


9.1
Power Queen 12.8V 100Ah LifePO4 Battery Review

Power Queen 12.8V 100Ah LifePO4 Best Value

The Power Queen 12.8V 100Ah LifePO4 is a budget-friendly lithium-ion battery that is perfect for your home, trailer, or RV. 

Why Research And Reviews Matter

While common sense dictates that competition is an excellent way to drive the price down, it presents a significant problem for average Joe and plain Jane. 

“Why?”

There is a good chance ordinary consumers will get overwhelmed by all the choices available. The last thing we want is for you to buy or overpay for something you don’t need.

“Aren’t they just all the same? What’s the difference performance-wise?”

That is why we are starting these green energy product reviews to help your decision-making process. Sure we get these sweet products from companies who want testimonies from experts. However, our partner companies don’t influence our opinions.

Let’s begin this review of the Power Queen 12.8V 100Ah LifePO4 Battery. 


Power Queen 12.8V 100Ah LifePO4 Battery Technical Details

Based on stats alone, we can tell the Power Queen 12.8V 100Ah LifePO4 Battery is best utilized for static applications such as your home or RV energy storage system.

100Ah batteries like this one are more suited to be stacked together to form a pseudo-Powerwall depending on your power and energy needs.


Main Features

Main Product Features Include:

  • Lightweight (about half the weight of lead acid products)
  • 5-year warranty 
  • Modular (can be connected in parallel or series)
  • 100A BMS
  • Outstanding Post-Purchase Service (according to other e-commerce reviewers)
  • Good Longevity – 4000 Cycles at 1280Wh, but we will verify this via charge and discharge tests.

Earlier, we mentioned that LFP blows SLA out of the water in terms of cost-effectiveness. 

This is why: 

SpecificationPower Queen LFPRenogy SLA
Nominal Voltage12.8V12V
Max. Continuous Charge/Discharge Current100A30A
Weight24.25 lbs63.9 lbs
Dimension13 x 6.82 x 8.48 inches13.1 x 6.9 x 8.6 inches
Cycles4000AUndisclosed
Ideal Depth of Discharge80%50%
Warranty5 years2 years
SLA vs. LFP

Currently, the price difference between these two products is about $150, tax included. You be the judge if better portability, battery longevity, and depth of discharge are worth that.

A Comprehensive Comparison Between LFP and SLA on Different Properties.
A Comprehensive Comparison Between LFP and SLA on Different Properties.
Source: Power-Sonic.com

Warranty-wise, you should know they are only valid if the companies exist by the time you claim them. This is where company reputation is essential. Power queen is a relatively new player compared to Renogy and is still making a name for itself. The company is founded by battery engineers with more than a decade of experience in the battery realm.

Therefore, we can make the case that the table above and other studies make it compelling to choose LFP over SLA and AGM. 

“So what is the use of SLA and AGM nowadays?” 

That is another tale for another day, friend.

Let’s proceed to the unboxing.

9.1
Power Queen 12.8V 100Ah LifePO4 Battery Review

Power Queen 12.8V 100Ah LifePO4 Best Value

The Power Queen 12.8V 100Ah LifePO4 is a budget-friendly lithium-ion battery that is perfect for your home, trailer, or RV. 

Power Queen 12.8V 100Ah LifePO4 Battery: First Impressions

The Power Queen 12.8V 100Ah LFP Battery came within the standard 7-day delivery timeline. The box wasn’t absurdly challenging to carry from the front door to the living room. The carton packaging isn’t the best in the world, but that may translate to extra production line savings (either for the company, for us, or both. who knows, right?)

Our First Look at the Carton Box Packaging.
Our first look at the packaging.

Unboxing Experience

We took out a box cutter to look at what was inside and were greeted with the 5-year warranty card and foam protector.

The battery itself is wrapped in plastic for extra protection.

Foam and plastic protection for safety.

The Warranty and Service Card.
The warranty and service card.

Power Queen 12.8V 100Ah LifePO4 Battery: Materials and Aesthetics

We’re not going to lie housing batteries in plastic usually makes it look cheap. We cannot say the same for the Power Queen. It is glossy plastic but has a sturdy feel to it. The battery strap provides sufficient support without making you worry while carrying it up and down the stairs.

The housing is IP65-rated. Not the best in the world, so it is essential to identify water hazards when setting this up with other electrical components.

The Power Queen 12.8V 100Ah LFP Battery Comes in a Standard Carton Box. The casing is IP65 for weather resistance and has a premium feel.
The Power Queen 12.8V 100Ah LFP battery comes in a standard carton box. The casing is IP65 for weather resistance and has a premium feel.

Overall, pleasing aesthetics with some weather-resistant features.

We had a little helper assist us with the unboxing. Please be sure to keep your children away from the setup when it's in operation.
We had a little helper assist us with the unboxing. Please keep your children away from the setup when it’s in operation.

Terminals are color-coded red and black to indicate positive and negative, respectively—an underrated but crucial safety feature.

Knowing which terminals are positive and negative is important when handling electricity.
Knowing which terminals are positive and negative is essential when handling electricity.

Unboxing Gallery

9.1
Power Queen 12.8V 100Ah LifePO4 Battery Review

Power Queen 12.8V 100Ah LifePO4 Best Value

The Power Queen 12.8V 100Ah LifePO4 is a budget-friendly lithium-ion battery that is perfect for your home, trailer, or RV. 

What Can the Power Queen 12.8V 100Ah LifePO4 Battery Power?

What can you run off this 100Ah Battery?

The Power Queen 12.8V 100Ah can power anything with a suitable inverter.

What’s left is a needs assessment. To do that, you need to figure out: (1) How many appliances you want to power; and (2) for how long on a typical day or week.

We’ll demonstrate this in a sample Power, and Energy Needs Planning Process for further understanding.


Practical Application of Power Queen 12.8V 100Ah LifePO4 Battery

A needs assessment consists of the following steps:

  1. Write Down Your Appliances
  2. Add Power Ratings
  3. Estimate Running Hours
  4. Compute Total Daily Energy Needs

Power And Energy Needs Planning

Say you are planning to DIY an off-grid cabin solar system. Here is what the finished planning process looks like from an energy storage standpoint.

Typical AppliancesRated PowerRunning HoursEnergy Consumption
Coffee Maker1100 W0.1110
Microwave800 W0.15120
Regular Refrigerator / Freezer700 W245,600
Toaster800 W0.180
Laptop and Cellphone100 W5500
Lightbulbs150 W5750
Airconditioner1200 W83,200
Total Solar Panel Size4,850 W10,360 Wh
A Sample Off-Grid Cabin Energy Storage Needs Assessment

From the looks of it, you will need 10 kWh a day. That means stringing together at least 10 Power Queen 12.8V 100Ah batteries in a series-parallel configuration if you want backup energy (1280 watt-hours multiplied by 10 is 12,800Wh).

Of course, it is entirely up to you and your budget how many days of reserve energy you want.


Confirm The Actual Energy Capacity of the Power Queen 12.8V 100Ah LifePO4 Battery

Now, some of you who are on a tight budget are probably thinking:

“12,800Wh is too much for this case. I’d buy nine (9) and save hundreds of dollars if it were me!”

Then you proceed to pat yourself on the back.

While you’re chuckling over there, we want to say that we agree with your reasoning. To confirm this theory, we have to determine the actual energy capacity of the Power Queen 12.8V 100Ah LifePO4 Battery.

After all, the 1280Wh claim might not be accurate.

Let’s conduct a charge-discharge test and see how close we can come to 1280Wh.


Capacity Testing

Capacity tests are one of those simple yet satisfying things you can do to confirm a battery’s energy rating.

In our setup, we made use of the following components:

  • AC Battery Charger or Solar Panel with Charge Controller
  • Energy Meter
  • Load
  • Inverter
  • Wires and Cables
  • Power Tools
Buying all the good stuff from Amazon for the capacity test.
Buying all the good stuff from Amazon for the capacity test.

Before beginning your discharge test, ensure that you have fully charged your LFP battery. In our case, we used a combination of AC battery chargers or solar panels hooked to an MPPT charge controller.

Warm-up test. Capacity test setup at 125W.
Warm-up test. Capacity test setup at 125W.

Estimating the State Of Charge

How will you know that your battery is charged sufficiently? Look at the nominal voltage readings. There is a direct correlation between open circuit voltage and state of charge. In the academe, this is referred to as the OCV-SOC relationship.

Therefore, if your meter reading indicates 12.8V or more, you have a sufficiently charged battery. Compare this to an 11.39V reading before your battery disconnects itself from the load.

A battery meter is attached to the battery terminals and cables.
A battery meter is attached to the battery terminals and cables.

Once you have a fully charged battery, we can begin the discharge test by hooking your battery to an inverter that converts 12V DC to 120V AC.

A hair blower and PPS drawing 500W from the Power Queen.
A hair blower and PPS drawing 500W from the Power Queen.

Capacity Test Result

We ran various charge-discharge tests in the past weeks, and the results are pretty much the same for 100W to 500W loading conditions.

The actual capacity of the Power Queen 12.8V 100Ah LifePO4 battery falls around 1205 to 1220 Wh. That is 95% of the 1280Wh rating. Looks good to us!

Should You Buy 9 or 10?

Going back to our sample planning scenario earlier, buying 9 of these will give you a total of:

1,205Wh x 9 units = 10,845Wh
10,845Wh > 10,360Wh

It turns out you can save money and still have one day’s worth of stored energy! Congratulations!

A few moments before turning off via BMS, drawing 44A from the Battery at 11.39V.

Final Thoughts

Should you buy this? For us, it is a yes. The test verifies the capabilities of the Power Queen 12.8V 100Ah LifePO4 Battery, and LFP is indeed one of the top considerations for modern energy storage applications.

We acknowledge the credentials of Power Queen, being in the battery industry for decades. In the future, it would be reassuring to see independent third parties publish long-term studies or simulations to verify whether prismatic LFP (the material used in this product) holds up to 4000+ cycles before degrading to 80% of its rated energy.

Before we end this article, we want to share some numbers regarding women working in the green energy sector. While women often make up half of the workforce, there are some sectors where they are underrepresented in. 


Bonus Feature: Women In The Green Energy Movement

According to the International Renewables Energy Agency (IRENA), 

Women comprise only 32% of the total renewable energy workforce, 45% of the administrative workforce, 28% of the technical personnel, and 35% of the non-technical workforce.

If you pay close attention, the roles given to women today lack both quantity and quality.  

“Why?”

Look at the percentage gap between women working in administrative and technical roles. Not only are they underrepresented, but they are also highly likely given non-promotable positions. 

Societal Headwinds

This current situation in the green energy sector emphasizes the headwinds women face in the industry. It also tells why there is a need to dig deeper into this issue and help women get more career opportunities in the clean energy sector. 

And Power Queen is an uncommon sight. According to their website, it is a female-founded company that wishes to break the norm and highlight the role of women in the energy transition. Climatebiz reviews might not be the best platform for it, but it is always good to remind ourselves of some work that needs to be done to improve society.

9.1
Power Queen 12.8V 100Ah LifePO4 Battery Review

Power Queen 12.8V 100Ah LifePO4 Best Value

The Power Queen 12.8V 100Ah LifePO4 is a budget-friendly lithium-ion battery that is perfect for your home, trailer, or RV. 

Gustav Cruz

Gustav Cruz

Gustav has a Bachelor of Engineering and is currently practicing as a senior-level electrical engineer specializing in research. He is eager to deliver his analyses in a comical fashion while providing you with the right amount of scientific information. He believes that, with a bit of help, a well-informed decision is rewarding to make, it saves you money, and it is a win-win for all - the planet included.

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