Best LiFePO4 Battery of 2024 Expert Insights

For decades, there have been two main battery options. Lead-acid batteries and standard lithium batteries have been the go-to options for a variety of uses, and they come in all shapes, sizes, outputs, and capacities.

However, battery technology is always evolving. It has to as our electronics evolve and require different battery traits to operate properly, as well as the general desire to make longer lasting, cheaper, and safer power sources driving that evolution as well.

If you’ve taken a look at the battery world recently, you’ve probably seen a new option known as LiFePO4.

LiFePO4 batteries are quickly gaining traction in the lithium battery space, and they offer a number of advantages that you just don’t get with traditional lithium-ion batteries.

So, we going to go over what a LiFePO4 battery is, some of the advantages and disadvantages you get, and of course, what few of the best LiFePO4 batteries are so you can make sure you get a cost-effective, reliable, and high-quality product when trying these newer batteries out.

Let’s get started.

What is a LiFePO4 Battery?

A LiFePO4 battery is a type of lithium battery that changes up the traditional chemical solution that generates the electrical current in lithium batteries. Whereas a traditional lithium-ion battery will have lithium iron phosphate, lithium manganese oxide, cobalt, and a lithium salt electrolyte, LifePO4 batteries have a lithium salt electrolyte, lithium iron phosphate, and a carbon anode.

That seems like a small difference, but it makes a major impact.

While LiFePO4 batteries are slightly more expensive, have lower capacity per cell, and weigh more, they are also safer, last up to 6x longer, and their heavy usage in off-grid living, solar power systems, and similar uses negate the majority of their drawbacks.

They’re even becoming cheaper due to more manufacturers making them and demand being met more effectively.

Does The LiFePO4 Battery Really Worth It?

When it comes to batteries, it’s not just about the initial purchase. You should consider the longevity, efficiency, and overall cost-effectiveness. That’s where LiFePO4 batteries step in as a trailblazing choice for many.

Unbeatable Advantages of LiFePO4 Batteries:

1. Extended Life and High Cycles: With over a decade-long lifespan, LiFePO4 batteries are designed to stand the test of time. Imagine a battery that offers over 4,000 cycles, with some premium models boasting up to 7,000!
2. Compact and Lightweight: Size does matter, especially in applications where space is a luxury. LiFePO4 batteries are not only lighter but also more compact compared to traditional lead-acid ones.
3. Cost-Effective in the Long Run: Don’t let the initial investment deter you. When you account for their longevity, these batteries come out on top in terms of cost-effectiveness.
4. Quick Charge and Discharge: In today’s fast-paced world, waiting hours for a charge isn’t practical. These batteries cater to this need by supporting high-speed charging and discharging.
5. Deeper Discharge: With over 80% Depth of Discharge (DOD), and some even supporting 100%, LiFePO4 ensures you get the most out of every charge.
6. No Memory Effects: Say goodbye to the performance degradation common with many battery types. LiFePO4 maintains its efficient performance throughout.
7. Minimal Self-Discharge: Ideal for storage, these batteries boast a mere 3% monthly self-discharge rate, retaining half their charge for several months.
8. Safe and Environmentally Friendly: Safety first! LiFePO4 batteries, made from eco-friendly materials, also possess stable chemical properties, making them exceptionally secure.
9. Low Maintenance: Once set, almost forget. These batteries demand very little attention, only periodic checks for terminal oxidation and loose wiring.
10. Performs Well in High Temperatures: If your application involves higher temperatures, rest easy knowing that LiFePO4 batteries can handle the heat.

Weighing the Pros and Cons:

Yes, LiFePO4 batteries come with an initial higher cost, but their numerous benefits make them a worthy investment. Their unparalleled efficiency, coupled with their lightweight design, makes them an attractive choice for many applications, from medical devices to electric vehicles. Their long-term cost savings, stemming from reduced replacements and enhanced performance, easily eclipse the upfront expenditure.

Concluding Thoughts:

When contemplating your next power solution, think beyond just the initial cost. The superior longevity, enhanced performance, and environmental benefits of LiFePO4 batteries position them as a front-runner. Whether for personal use or business applications, these batteries promise reliable power, making them an invaluable addition to our ever-evolving technological landscape.

Quick Guide: Picking the Best LiFePO4 Battery

Ready to buy a LiFePO4 battery? Great! But wait, you want the best one, right? Here’s a simple list to help you out:

1. How Much Power? Check the ‘Ampere hours’ on the label. It tells how much power the battery can store and how long it can run your stuff.
2. Voltage Matters: Think of voltage like puzzle pieces. A 12V battery won’t fit a 24V system. Always match the battery to your system’s voltage.
3. Cycle Life: Imagine charging and using a battery again and again. The more cycles it can handle, the longer it lasts. That’s good value for your money!
4. Real Power Output: A battery might say 100Ah, but may only give 90Ah in real life. Look for its depth of discharge to know the true power.
5. Fast Charging: Some batteries charge quicker and use less energy doing it. That’s called charging efficiency. Higher is better!
6. Perfect Fit: Batteries come in different shapes and sizes. Make sure it fits where you need it, whether it’s for a boat or a solar setup.
7. Stay Safe: Good batteries have safety features. Look for things like protection from short circuits or overcharging.
8. Warranty Tells: A long warranty often means the battery is high-quality. Six months? Meh. Five years? Now, that’s confidence!
9. Price vs. Value: Cheaper isn’t always better. Think about how long the battery will last. Sometimes, paying a bit more upfront saves money in the long run.
10. Trusted Brands: Known brands usually mean better quality and service. It’s like choosing between a random soda and your favorite brand.
11. What Do People Say?: Check online reviews. If lots of folks are happy with a battery, you might be too!

Best LiFePO4 Battery Brands

In the rapidly evolving world of energy and technology, the battery industry stands as a cornerstone, powering everything from daily consumer electronics to the next generation of electric vehicles (EVs) and renewable energy storage solutions. At the forefront of this transformative sector are six companies that have not only shaped the landscape of battery technology but also continue to push the boundaries of innovation, sustainability, and efficiency. These trailblazers—Tesla, Inc., Panasonic Corporation, Samsung SDI, LG Chem, BYD Company Ltd., and MANLY Battery—each bring their unique strengths, technological advancements, and strategic visions to the table, collectively driving the industry forward.

1. Tesla, Inc. and Its Partnership with Panasonic

Tesla, Inc., a leading force in the electric vehicle (EV) and energy sectors, has been pivotal in driving forward the adoption of sustainable energy solutions. A key element of Tesla’s success in these endeavors has been its partnership with Panasonic, a renowned electronics and battery manufacturer. This collaboration has been central to Tesla’s strategy, particularly in the realm of battery production for its EVs and other automotive clients.

Adjusting to Market Dynamics
Recent developments have seen Panasonic revising its full-year operating income forecast for its battery segment, which primarily serves Tesla and other automotive companies, from 135 billion yen down to 115 billion yen (approximately $769 million). This adjustment reflects the company’s response to a swiftly changing market demand, necessitating a recalibration of automotive battery production volumes in Japan to maintain “appropriate inventory levels.”

The backdrop to this scenario involves the implementation of the U.S. Inflation Reduction Act (IRA), which has significantly influenced consumer demand patterns. The Japanese battery sector, including Panasonic’s operations, has felt the impact of a slowdown in demand for high-end EVs in North America. Despite this, Panasonic’s North American business has maintained stable production, buoyed by robust sales of vehicles that qualify for tax credits under the IRA, illustrating a nuanced landscape of challenges and resilience.

Financial Performance and Strategic Moves
Panasonic’s energy division reported revenue of 119.2 billion yen, marking a 4.7% year-on-year increase, though it experienced a 6.4% sequential decrease. Within this segment, power batteries accounted for 85.1 billion yen in revenue, with storage/consumer batteries contributing 33.4 billion yen. Remarkably, the battery business’s operating profit stood at 15.1 billion yen, boasting an operating profit margin of 12.37%, with an 81.0% year-on-year increase and a significant 586.1% jump on a sequential basis.

This financial uptick is largely attributed to growing demand for power batteries, enhanced productivity, and the amplification provided by IRA tax credits. Panasonic Energy has recognized a net profit of 26.8 billion yen from IRA tax credits, anticipating eligibility for AMPC subsidies to expedite capacity building in the U.S., with expectations of securing billions of yen in subsidies.

Forging Ahead
Tesla’s partnership with Panasonic underscores a mutual commitment to advancing EV technology and energy storage solutions. Despite market fluctuations and regulatory changes, this alliance remains a testament to the dynamic nature of the sustainable energy sector. Through strategic adjustments and leveraging legislative incentives like the IRA, Tesla and Panasonic continue to pave the way for a future powered by clean, renewable energy, demonstrating adaptability and forward-thinking in a rapidly evolving industry landscape.

2. Panasonic Corporation

Panasonic Corporation, a global electronics and energy giant, has made notable adjustments in its financial forecasts and production strategies, reflecting the dynamic nature of the automotive battery market and the broader energy sector. The company, renowned for its innovation in battery technology, particularly for electric vehicles (EVs) including its collaboration with Tesla, has navigated the challenges and opportunities presented by fluctuating market demands and policy shifts, such as the U.S. Inflation Reduction Act (IRA).

Financial Revisions and Market Adaptation
In a significant move, Panasonic revised its full-year operating income expectation for its energy division, which is a crucial supplier for Tesla and other automotive manufacturers. The projection was adjusted from 135 billion yen to 115 billion yen (approximately $769 million). This revision was a strategic response to the rapidly changing demand within the automotive battery sector, prompting the company to adjust its production volumes in Japan. The aim was to maintain an “appropriate inventory level” amid decreasing demand, a challenge accentuated in the period leading up to September.

Impact of the Inflation Reduction Act
The IRA has played a pivotal role in shaping consumer demand within the U.S., affecting the production dynamics of Panasonic’s battery division. While high-end EV demand in North America experienced a slowdown, impacting Panasonic’s Japanese battery production, the company managed to keep its North American operations steady. This stability was supported by robust sales of vehicles eligible for tax credits under the IRA, illustrating Panasonic’s ability to adapt to market shifts and leverage policy changes to its advantage.

Financial Performance and Strategic Investments
Panasonic Energy reported a revenue of 119.2 billion yen, marking a year-on-year increase of 4.7%, despite a sequential decline of 6.4%. The revenue from power batteries stood at 85.1 billion yen, with storage/consumer batteries contributing 33.4 billion yen. Notably, the battery business’s operating profit reached 15.1 billion yen, achieving an impressive operating profit margin of 12.37%. This represents an 81.0% increase year-on-year and a significant sequential surge of 586.1%.

The remarkable financial performance can be attributed to the growing demand for power batteries, enhanced productivity, and the beneficial impact of IRA tax credits. Panasonic Energy recognized a net profit of 26.8 billion yen from these tax credits, anticipating eligibility for AMPC subsidies. These subsidies are expected to accelerate Panasonic’s capacity building efforts in the U.S., potentially securing billions of yen in support.

Looking Forward
Panasonic Corporation’s strategic adjustments and financial performance underscore its resilience and adaptability in a rapidly evolving industry. The company’s focus on leveraging policy incentives, such as the IRA, and its commitment to innovation and sustainability, position Panasonic as a key player in the global transition towards clean energy. As the demand for electric vehicles and renewable energy solutions continues to grow, Panasonic’s expertise in battery technology and strategic investments will play a crucial role in shaping the future of energy storage and mobility.

3. Samsung SDI

Samsung SDI, a leading player in the global battery industry, announced its performance for the year 2023 on January 30, 2024. The company reported a record-breaking sales revenue of 22.71 trillion Korean won, marking an increase of 2.58 trillion won compared to 2022, thus achieving the highest sales performance in its history. However, its operating profit saw a decrease of 1.746 trillion won. The automotive battery business, in particular, experienced significant growth, with sales revenue increasing by 40% and operating profit by 93% compared to the previous year.

Quarterly Performance Insights
Looking at the fourth quarter of 2023, Samsung SDI’s sales amounted to 5.56 trillion Korean won, with an operating profit of 311.8 billion won. This represents a decrease in sales revenue by 401.1 billion won and a reduction in operating profit by 179 billion won compared to the same period in 2022. When compared to the third quarter of 2023, both sales revenue and operating profit saw declines, indicating a challenging quarter for the company.

During the fourth quarter, the battery division’s sales were 4.9983 trillion Korean won, a decrease from both the same period in 2022 and the third quarter of 2023. Operating profit for this period also fell, underlining the competitive and volatile nature of the global battery market.

Outlook for 2024
For 2024, Samsung SDI is optimistic, projecting the power battery market to reach approximately $184.8 billion, representing an 18% growth over the previous year. The company plans to enhance its sales and profitability by expanding the sales of high-end products like P5 and P6. It is also gearing up to secure new platform orders and ensure smooth operations at its new facility in the United States.

In the energy storage battery market, Samsung SDI anticipates a similar growth rate of 18%, expecting the market to hit $25.6 billion. While continued growth is expected in major markets like North America, Europe, and China, emerging demand from South Korea and South America is projected due to the development policies in the energy storage industry. Samsung SDI aims to capture new orders with innovative products like SBB (Samsung Battery Box) and is preparing LFP (Lithium Iron Phosphate) products to meet market demand effectively.

Moreover, the small battery market is forecasted to grow by 3% in 2024, reaching $43.8 billion. Despite a stagnation in overall demand for electric tools, Samsung SDI anticipates increased demand for specialized applications, driven by product diversification and higher electrification rates due to environmental regulations.

Samsung SDI’s strategic focus on expanding its product portfolio, entering new markets, and leveraging technological advancements positions the company to navigate the complexities of the global battery market successfully. With its commitment to innovation and sustainability, Samsung SDI is poised to play a crucial role in powering the future of mobility and energy storage solutions.

4. LG Chem

LG Chem, a conglomerate rooted deeply in the realms of petrochemicals, batteries, advanced materials, and life sciences, envisions a future where energy, water, and biology are the pillars of new business growth. The company’s commitment to enhancing human life through innovative materials is evident in its leadership aspirations in the eco-friendly energy industry, particularly through the development of next-generation battery technologies and materials.

Innovation at the Forefront
LG Chem’s strategy is anchored in spearheading the global lithium battery market with its cutting-edge material technologies. The firm sets its sights on becoming a global leader in the electric vehicle (EV) and energy storage system (ESS) battery sectors. By laying a foundation of innovative technological prowess, LG Chem actively pursues new product development, ensuring world-class battery production capabilities and enhancing its market share in the next-generation renewable energy market.

Market Dynamics and Financial Performance
Recently, LG Chem’s new energy sector, focused on batteries, encountered a downturn, with profits in the fourth quarter showing a significant dip of 53.7% quarter-over-quarter. This decline is attributed to the sluggish demand for EVs in Europe, cautious inventory management by automotive manufacturers, and the continuous decrease in metal prices. Despite these challenges, global growth in the EV battery market is expected to decelerate temporarily: the global EV market is anticipated to grow by around 20% this year, with North America projected to maintain a growth rate of approximately 30%.

Looking Ahead to 2024
LG Chem’s outlook for 2024 is cautiously optimistic, with revenue growth projected to be in the mid-range of 0% to 10%. The company is strategically positioned to benefit from the U.S. government’s tax incentives, expecting its 45–50 GWh capacity to qualify for tax credits. This anticipation aligns with LG Chem’s broader strategy to leverage policy incentives to bolster its competitive stance in the rapidly evolving energy market.

LG Chem’s journey reflects a blend of innovation, strategic market positioning, and adaptability to global market trends and regulatory landscapes. By focusing on innovative materials and battery technologies, LG Chem not only aims to lead in the EV and ESS domains but also contributes significantly to the global transition towards sustainable energy solutions.

The Best LiFePO4 Battery to Choose From

At the moment, LiFePO4 batteries are relatively new, and as such, not every battery supplier has jumped on the bandwagon and started making them.

However, out of the suppliers that have started producing them, a few stand out as great options for various reasons.

We’re going to start with our top pick, and then we’ll go over a few honorable mentions.

1: MANLY’s Best LiFePO4 12v 200ah Battery

This is our top recommendation, and for practically anything you’d want to use a 12v battery for, it’s going to be the best you can get.

MANLY has several traits working to its advantage.

First, there’s the 200ah rating. The vast majority of 12v batteries max out at 100ah. This allows the MANLY battery to discharge 200 amps of electricity for an hour before the battery depletes. It’s unlikely that most devices will need that, but it more or less equates to more capacity overall and better flexibility.

However, that’s not the only thing that sets the MANLY battery apart. It has several features and traits that make it the best LiFePO4 battery 12v 200ah.

First, there’s the built-in safety features. MANLY packs its batteries with overcurrent protection, undercurrent protection, short circuit protection, and temperature-based protection to ensure that you get the safest battery possible. Along with LiFePO4’s innate high level of safety, these safety features basically eliminate any concerns for fire hazards or unnatural battery failures; along with any concerns for poor current control damaging the items they’re hooked up to.

Then, there’s the advanced performance. MANLY batteries maintain their performance and capacity at 90% throughout their lifespan. They also charge a lot faster than the competition, and they provide reliable performance for roughly 8000 charging cycles before it’s recommended to replace them. This means that, even if the MANLY isn’t the cheapest up front, it’s still the best value in the long haul.

In terms of the battery itself, the final main benefit is that MANLY provides customized battery options to suit any need. So, if the off-the-shelf battery isn’t exactly what you need, you can place a custom order.

The battery supplier itself also offers a top-tier guarantee, 24/7 service, and a long-standing reputation across the entire planet. You can’t underestimate the value of great after-purchase care and customer support; especially given the demanding applications these batteries are used for.

2: SOK 12v 206ah Solar Storage

The SOK boasts many of the same specs as the MANLY, but it’s not as advanced with its safety features and focuses primarily on providing a stable battery for residential solar power storage. In short, it’s a great battery if you have at-home solar panels to offset your energy bill or keep your home powered during emergencies.

The casing also boasts a significant level of quality. SOK knows that residential homes are often prone to experiencing mishaps and issues. So, there’s extra care taken to make sure the battery is solid. You don’t have to worry about your kids banging on it, the dog ripping it out of its space, or anything else that can cause dangerous situations to occur.

However, the battery only features a limited 5-year warranty, and it’s priced above our top pick with less flexibility.

3: Lion UT 1300

The Lion UT 1300 boasts an incredible ampere, but it has a more limited battery as well.

With 1300ah, a lightweight design, and a smaller profile than expected, the Lion UT 1300 is a great option for on-the-go charging; whether you’re off-grid and need to power your comms, or you’re just at a worksite all day and need to keep your phone and smaller tools charged.

This is where the UT 1300 excels; as a personal charger for smaller electronics.

This is both a great design choice and a drawback.

Sure, you can use this as an amazing power bank for personal electronics, but if you want to operate complex items with it, such as powering your fridge during a power outage or running shop tools without having your shop attached to the grid, it’s not going to work.

It is priced appropriately, though. So, this is something that works great if you’re going camping for the weekend, work long hours, and need to charge your electronics, or something like that.

4: Battleborn 100ah Residential Solar Battery

This is another highly specific battery. It doesn’t try to get everything right for every situation, but it does try to be the best for residential solar power needs, and it does a great job.

The Battleborn 100ah is a LiFePO4 battery that has the standard 100ah rating, and it’s entirely designed around storing solar power and using it efficiently to power a home. That is great if you’re going to use it for a solar power system, but it produces several faults when you try to use it for other uses. Notably, its 100ah rating means that it can only use 100 amps in an hour, or it’ll deplete its entire charge.

However, it does provide 10,000 watts of power per charge, and that can help you keep the lights on, the fridge running, and your phone charged during a power outage. You just don’t want to try to run your entire house the same way you would if the grid were working properly.

Best LiFePO4 Batteries for Marine Use: Pros and Cons

Navigating the sea of battery options for marine applications can be challenging. Here’s a brief overview of three top LiFePO4 battery choices, each with its unique strengths and potential drawbacks.

MANLY 12V 100Ah Marine Lithium Battery

Brief Overview:
The MANLY 100Ah lithium battery stands out for its safety and longevity, boasting a life span that’s eight times longer than traditional lead-acid batteries. Designed with advanced LiFePO4 cells, it promises exceptional durability through optimized manufacturing processes. It also includes a sophisticated Battery Management System (BMS) for enhanced protection and compatibility with various inverters.

Pros:

• Remarkable longevity and safety features.
• No maintenance required.
• Can be connected up to 4 batteries for extended capacity.
• Includes cold weather protection and an IP66 marine rating.
• Backed by a 10-year warranty.

Cons:

• Higher initial investment.
• Longer delivery times to the USA.

WEIZE 12V 100Ah LiFePO4 Battery

Brief Overview:
WEIZE offers an affordable LiFePO4 battery solution without compromising on power. With a lifespan boasting up to 8000 cycles and a lightweight design, it’s an attractive option for boaters looking to upgrade from heavier lead-acid batteries. The built-in BMS safeguards against power surges and extreme temperatures, ensuring reliable performance even in cold weather.

Pros:

• Long-lasting with a 10-year warranty.
• Lightweight and easy to install.
• Environmentally friendly and non-toxic.
• Efficient performance in a wide temperature range.

Cons:

• Variability in build quality reported.
• Some concerns with customer service responsiveness.

Optima Blue Top Battery

Brief Overview:
Optima’s Blue Top battery is the compact solution for marine enthusiasts with limited space. Known for its distinctive design and reliable performance, it can be mounted in nearly any position and is resistant to vibrations. Available in four sizes, it caters to various needs and applications, offering a smaller footprint without sacrificing power.

Pros:

• Versatile mounting options due to its compact size.
• Vibration resistance adds to its durability.
• Suitable for spaces with limited room.

Cons:

• Not the lightest option for its size.
• Premium pricing compared to other batteries on the market.

Conclusion

Whether you prioritize longevity, cost-efficiency, or compact design, there’s a LiFePO4 battery suited to your marine needs. Each option brings something valuable to the table, from the MANLY battery’s unparalleled safety and longevity to WEIZE’s affordability and environmental friendliness, and Optima’s compact, versatile design. Consider your specific needs, budget, and space requirements to make the best choice for your marine adventures.

What to Consider When Choosing a LiFePO4 Battery

So, now that you know a few of the top brands, how do you choose between them?

Here are a few things to consider.

1: The Top Choice is the Best in General

Our number-one pick, the MANLY 12v 200ah LiFePO4 battery, is the best all around. It can do the vast majority of things you could possibly ask for, it’s priced attractively, and it has some of the best safety and quality-of-life features possible. It’s also backed by a guarantee that covers the full standard expected life of a LiFePO4 battery.

In the vast majority of situations, the MANLY is going to be your best bet, hands down.

It’s when your needs are extremely targeted, and there are unique traits, that you need to look elsewhere.

MANLY Battery is also a renowned battery supplier that supplies batteries to commercial and consumer markets around the world, and it offers one of the best guarantees around to ensure you’re satisfied.

2: Why MANLY Battery Top the Chart: 8 Reasons

1. Industry-Leading Manufacturing: With over 13 years in battery production, MANLY Battery sets the standard. Producing up to 6MWh daily, the brand epitomizes quality combined with vast production capacity.
2. Diverse Battery Solutions: Searching for solar energy storage batteries or those tailored for military applications? MANLY offers a spectrum of LiFePO4/lithium-ion batteries, catering to diverse energy needs from 6V to 72V.
3. Precision Customization: MANLY Battery understands individual requirements, offering bespoke battery services. Whether you’re after a specific voltage, capacity, or aesthetic, they are the go-to for customized battery solutions.
4. Globally Certified Excellence: With international certifications like 3, IEC62133, UL, and CE, MANLY ensures you’re investing in globally recognized quality. Their decade-long warranty stands as a testament to their commitment.
5. Safety Meets Efficiency: From overcharge protection to resilience against severe impacts, MANLY batteries are synonymous with safety. Plus, their performance metrics ensure they’re not just safe but incredibly efficient.
6. All-Weather Battery Power: Where many batteries falter, MANLY thrives. Optimal performance from -20°C to 75°C ensures your adventures continue, irrespective of extreme climatic challenges.
7. Eco-friendly Energy Champion: Boasting an impressive 98% energy efficiency, MANLY’s LiFePO4 batteries outclass traditional lead-acid variants, ensuring faster charging and minimized energy consumption.
8. Futuristic User Interactions: With features like Bluetooth connectivity and clear battery level displays, MANLY Battery redefines the user experience, offering a seamless blend of power and modern-day tech.

3: Your Usage

If you have a very niche usage, such as a personal power bank to put in your vehicle and charge your electronics, an option like the Lion UT 1300 might be worth looking at. However, you wouldn’t want to power your home with it.

Consider your specific usage for the battery, and if it’s very niche, pick a battery designed to fit that purpose.

4: Power Needed

Finally, you need to look at the voltage, amp hours, and wattage needed to fulfill your needs. Every electronic is different. So, we can’t really list out anything in general. However, with a bit of research, or just looking at a system’s requirements printed on the system, you can find the perfect battery to meet your needs. With more complex usages, you should expect to do a little research.