A Lithium battery is often the most expensive element in a solar installation, and as a battery is a long term investment, it is important to take into account all aspects of a battery before buying. There are a number of parameters that are important to consider when buying batteries, for example:
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Voltage and Capacity
The Voltage of a battery will have to match the Voltage of your inverter. These days, most home solar or backup installations are 48 Volts (V). The higher the voltage, the less energy losses take place inside the system.
The Capacity of a battery is the total amount of electricity that it can store, measured in kilowatt-hours (kWh) or Ampere-hour (Ah). If the battery capacity is measured in Ah, just multiply the Voltage of the battery with the Ah rating:
Wh = Ah x V
To calculate how long a battery will last, for your intended use, you can multiply the loads you want to connect, by the duration you want to run the loads for. For example, your load is 1 kW (1,000 Watts); a battery with a useable capacity of 4 kWh will run this load for 4 hours.
Time (hours) x kW = kWh
C-rate
While capacity tells you how big your battery is, the C rate tells you how much power a battery can provide at a given moment, or how quickly the battery can be charged or discharged.
A battery with a high capacity and a low C rate would deliver a low amount of electricity (enough to run a few crucial appliances) for a long time. A battery with low capacity and a high C rate could run your entire home, but only for a few hours. The C-rate is relative to the capacity of the battery, e.g.:
In summary, 1C means that the battery is fully charged and discharged within one hour, 2C is 30 minutes, and 0.5 C means 2 hours.
Example: a Pylontech USC will have a C-rate of 0.5, while some other batteries have a 1 C-rate. To be sure that a 5 kVA / 4 kW inverter can run at its full potential, you would need at least 3 of these Pylontech batteries.
Depth of discharge (DoD)
The Depth of Discharge (DoD) of a battery refers to the amount of a battery’s capacity that has been used. Most battery manufacturers will specify a maximum DoD for optimal performance. For example, if a 10 kWh battery has a maximum DoD of 90 percent, you shouldn’t use more than 9 kWh of the battery before recharging it.
In theory, all Lithium batteries can be discharged at 100%, but this will shorten its cycle life and might affect warranties. The stated DoD in battery specifications should therefore always be considered together with the life span (see below).
Life span, warranty and back-up support
In general, most Lithium batteries will have an expected life-span of somewhere between 8 and 16 years. In most home solar systems, your battery will “cycle” (charge and discharge) daily. Over time, your battery will lose some of the charge.
This is similar to the battery in your – you are charging your each night, and as your gets older, the battery doesn’t last as long as it did when it was new. Extreme temperatures can affect the life span of a battery. The life-span of a battery is often stated in number of cycles, e.g. 4,000 cycles.
Your battery will have a warranty that guarantees a certain number of cycles and/or years of useful life, often for a certain maximum DoD. Warranty often states for example “10 years at a maximum (or average) DoD of 80%”, and that after 10 years “60% of the battery’s capacity” will remain. Always try to check for this statement in a battery’s specification, the DoD in combination with life span and remaining capacity.
Another aspect to consider is back-up support, and whether this support can be provided locally as well. For example, if a battery is assembled locally, and there is a specific battery cell that happens to be faulty, the manufacturer can come and simply swap out that cell. However, for many imported batteries, the unit has to be sent back to its origin for repairs, and you might have to wait for a long time to get your battery back once it is repaired.
Expandability
Most batteries are designed to be “expandable,” which means that you can add multiple batteries to your solar system to get extra capacity. Check for this option to make sure you can expand your system in the future.
Mounting
Some batteries can be wall-mounted, others have to be placed on the ground, and sometimes you need to buy specific cabinets. If, for example, you have limited space in your garage next to the DB board, the mounting system is something to consider as well.
Other considerations
Other aspects to consider are, whether you need extra specific battery cables, whether the battery is compatible with your brand of inverter and whether the battery is able to communicate with the inverter, and last but not least of course the what the total price is, compared to the quality of the battery. Price per kWh would be useful for comparison, taking into account, warranty, number of cycles etc; in short considering all the issues discussed above.
Today the demand for high-energy batteries is rapidly increasing. The main reason for this increasing demand is to provide long-term solutions for machines to run properly. The frontrunners in this race are Lithium batteries. So, let’s discuss how to buy a lithium battery. Moreover, we will discuss its applications in various industries. From smartphones to laptops, remote controllers to toys, digital media to electric vehicles, these are serving as energy storage systems. If you search the market to buy a lithium battery, you need to navigate that can be frustrating.
In our comprehensive guide, we will explore all the aspects and quick search features of these versatile and durable batteries. These will not only help you in searching for good ones but also influence your buying decisions.
You can not randomly buy a lithium battery. For this, there is no need for much knowledge of its considerable features. If you do, then it can be spam or useless with no results. We have come up with significant characteristics for you when buying lithium batteries.
1. Compatibility To Device
Every lithium battery has compatibility and chemistry with a variety of devices. The most common and considerable types are
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2. Battery Voltage and Storing Capacity
Capacity is the energy-storing power of a battery, measured in milliampere-hours and ampere-hours. Voltage is the potential energy and output energy that a battery provides to devices. You need to buy a battery that fits your gadget and fulfills the requirements to make it work efficiently and correctly. If you choose a low voltage, it can slow the charging, and your appliance will take more time. Therefore, for optimal charging, a compatible battery is necessary.
3. Longevity And Durable Life Cycle
The batteries should have a long and robust charging and discharging life cycle. It effectively impacts the functionality and working of the device. The cycle depends on the various factors:
4. Protective Circuit
Considering the safety protections is essential before buying Lithium Batteries. These power units have an electrochemical system that can be exploited if mishandled. So, therefore, go for the cells that have a protective circuit. It will stop the electrical cycle after charging completion and prevent cells from overheating. Moreover, safety features include: Overcharging protection, Short circuit prevention, Thermal protection, Temperature controller, and Protective circuit
5. Environmental Factors
Batteries that use environmentally friendly materials from manufacturing to disposal are more sustainable for the atmosphere. Therefore, to keep it clean, use non-toxic power units with recycling substances and less harmful chemical substrates like sodium, cobalt, sulfur, and oxygen. The hard and toxic chemicals will make the surfaces, causing metal-erosion damage, and slowing down of battery connections.
6. Price And Affordability
While purchasing, you need to prioritize rechargeable lithium battery prices. You need to access high-quality batteries, more in performance, and offer a warranty at reasonable rates. Additionally, companies that manufacture high-end cells introduce their products with a bit more cost. But, make a decision that comprehends you a long-term benefit.
Lithium batteries are in every room using tools, whether you are going to use them in your electronic devices or run your office device, these are complimentary. So, knowing the significant properties of these energy cells is necessary. But if, the battery you bought is not working efficiently? So, the next thing that comes to mind that where to buy authentic batteries. Comprehending your search and providing you with the best solution, we suggest the places and ways to get good lithium batteries.
1. Authorized And Reputable Brands
You must buy Lithium Batteries from certified and top brands in the market with a reputed product approach. Ensuring the authenticity and warranty is crucial to avoid spam and false items. Therefore, when you search the renowned companies like LG, Tesla, Samsung, Panasonic, EVE Energy, etc, you will find that these companies are offering their customers extra services as a guarantee of authenticity. The services include after-sale services, return policies, authorized certificate stickers, and other technical support. So, approaching certified brands will be an ease of breath for you.
2. Fetch From The Online Market
The second choice is to find Lithium batteries in the online market. After the introduction of online marketing, people are expected to prefer to make purchases by sitting at home. But it would help if you were cautious while searching for good batteries. The market is full of fake and unreliable products that are usually cheap in quality and price. So, do not go without checking product reviews, the seller’s reputation, product ratings, and uncertified items. As it can cause you to feign cheap quality commodities.
3. Retailers Offering Customized Batteries
There are retailers in the market that offer customized and tailored lithium batteries. They are highly specialized and skilled in understanding customer demands and providing battery solutions. Search for the profound retailers and hire them to provide you with recommended and supported batteries.
Here is a list of five top-grade manufacturers from where you can buy a lithium battery.
1. Tesla
A famous and top-rated battery service provider is Tesla. It was launched by an entrepreneur, Elon Musk, who revolutionized the market for automotive electrical cars with lithium batteries. The company is working on eco-friendly electric car productions that use less harmful batteries to avoid carbon-emitting systems. These highly powerful batteries serve as energy products for home battery servings and power packs for energy storage systems.
2. Panasonic
Panasonic is the largest contributor of lithium cells to Tesla. For decades, it has led the market with innovative, advanced, and high-quality batteries. Moreover, it has outstandingly focused on boosting high-performance batteries with long life cycles, high-density power, sustainability, and long-term battery solutions. Year after year, it has progressed battery technology with a wide range of compatible batteries for multiple electric gadgets.
3. Ufine Battery
Ufine Battery offers a wide range of options to buy a lithium battery. These may include lithium-ion batteries and lithium-polymer batteries. These batteries have a versatile nature. So, they come with inclusive features, such as high energy density, lightweight design, low self-discharge rate, and fast charging capabilities. Moreover, they also provide customization options for different battery voltages, capacities, and volumes. Compared to big brands, Ufine’s batteries are more flexible and more suitable for small and medium-sized enterprises.
4. Samsung SDI
Samsung SDI is a global brand famous for its extensive lithium battery production. It is a group of South Korean Conglomerate Samsung that delivers good-quality batteries for appliances like tablets, smartphones, vehicles, and other electrified devices. Throughout the decades, Samsung has maintained its batteries’ eco-friendly, sustainable, and long-term properties.
5. LG Chem
LG Chem is a prominent brand in the market and is profoundly renowned for its strong lithium battery production. The technology and material are advanced, sharp-edge cut, unique, safe, and tailored to meet the requirements of various devices. The company is committed to its users by seeking research and further development in their battery performance.
Lithium batteries have revolutionized energy storage power for a wide range of devices. When buying a high-efficiency lithium battery, consider the chemistry, voltage, environmental impact, compatibility, and safety. Also, buy batteries from famous and trusted companies for sound investment and long-term usage, and align them according to your device’s demands. So, if you want your gadget to work optimally, get the right lithium battery.
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