Understanding The Grading Criteria

When a battery cell manufacturer produces a certain batch of cells, they are classified according to the battery’s discharge performance and placed into four categories: A, B, C, and D. These categories are more evident when classifying Lithium-ion LiFePO4 batteries that are extensively used in various applications. Let’s take a look at these four cell categories

Grade A Battery Cells

Grade A battery cells are premium products that exhibit high quality and deliver top-notch performance. Their durability and the ability to withstand extreme temperatures sets them apart, ensuring they don’t deform under pressure.


When classifying a battery as Grade A, all the following specifications and standards should be top-notch:


  • Materials used to manufacture the battery
  • Technology
  • Energy storage capabilities
  • Stable charge and discharge
  • Specifications
  • Consistent temperature standards

Grade B Cells

Grade B cells are similar to Grade A cells but aren’t as efficient as their counterparts. They are only 80-90% performance efficient to Grade A ones. This is primarily due to the difference in materials, capabilities, technology, discharge rates, and other technical aspects from superior quality cells. With a slight defective rate, these cells can experience unstable charging and discharging.

Grade C and D Cells

Grade C and D cells rank quite low in every capacity and parameter. Their energy storage rates are below par, they don’t provide quality charging, and their discharge efficiency is less than the desired number. Grade B cells stored in a certain warehouse for more than eight months are automatically classified as Grade C cells due to self-discharge, dust, and moisture. In addition, Grade C batteries are prone to swelling and deformation.

Distinguishing Between Grade A and B Cells

Differentiating between these two cells can be tricky because they look identical. The only way is to tell them apart is to check whether the two categories meet the manufacturer’s criteria. If you want to distinguish between Grade A and B cells, check the following specifications:

  • Dimension and weight
  • Internal resistance
  • Capacity
  • Appearance
  • Capacity recovery
  • Self-discharge rates

Investing in Grade A LiFePO4 Lithium-Ion Batteries

If you’re looking for premium batteries that provide impeccable performance, durability, and reliability, invest in Grade A LiFePO4 lithium-ion batteries. These low-maintenance batteries are used extensively by battery manufacturers to produce batteries that are used in various applications such as RVs, EVs, and solar homes.

LiFePO4 cells are second to none when it comes to performance. Their impeccable charge and discharge rates, along with sustainability, makes them an ideal choice for various applications. In addition, they are quite durable and can provide a worthy investment in the long run.

However, as a manufacturer or someone looking to repair batteries for personal use, you should always work with a reliable supplier who can provide you with top-notch Grade A cells. You should also look for a supplier who doesn’t charge exorbitant prices for their products because they are Grade A cells. If you’re looking for such a supplier or manufacturer, you’ve come to the right place!

Quality Grade A Cells at Ezeal

Ezeal is a pioneer in providing Grade A cells at amazing prices. We have always prioritized manufacturing quality, sustainable and durable products for our customers. Our commitment to quality has led us to become one of the few suppliers of Grade A cells in the US. We constantly exceed expectations by providing our customers with world-class products and services.

Our manufacturing process involves using state-of-the-art machinery, premium materials, and the latest technology that results in the production of high-quality Grade A cells. Our custom battery packs and LiFePO4 batteries are known around the globe for their performance capabilities, durability, and sustainability.

Our growing clientele is a testament to our commitment to quality. Our products are popularly used in various applications. From solar power battery manufacturers and DIY enthusiasts to golf cart battery suppliers, our products are used everywhere. We also believe in personalization and customization, where we go above and beyond in helping our customers with custom solutions for their applications.

As a reliable manufacturer, we uphold the greatest standards and have crafted various internal policies and controls that ensure we maintain quality standards when manufacturing our Grade A cells.  

We are committed to continuously investing in our manufacturing processes to improve our range of products. Plus, our customer-centric policies make us the top choice for many manufacturers across the globe.

Why Work with Ezeal?

Ezeal has always believed in quality over quantity. When we partner with someone, we will go the extra mile in providing them with impeccable Grade A batteries. Our products are used by reliable manufacturers, both domestically and internationally. We don’t offer average, aftermarket products and don’t believe in charging mind-boggling prices for our batteries.

When it comes to pricing, we don’t overcharge for our products, and our prices are highly competitive. Customers can also order personalized products for their unique needs and requirements.

Our superior customer service and client-friendly policies have won us several accolades throughout the years. We understand every request is different and work hard to cater to the unique requirements of all our customers.

At Ezeal, we also believe in providing our customers with prompt deliveries, which is why we have enacted policies that enable us to provide same-day delivery services to locations near our local warehouses. For all international orders, customers can expect to get their products through UPS, FedEx, and DHL.

We continuously invest in our growth and explore new avenues to grow our product range further and improve our services.

Get in touch with our representatives today to learn how we can help you!

16810 Barker Springs Rd. Suite 219
Houston, TX 77084

Phone: (346) 265-7995

Email: info@ezealco.com

MON-FRI | 09:30 AM – 6:00 PM

We keep our stock in Houston, Texas, and ship to any location to USA, Canada and Puerto Rico. For USA Customers, your package arrives within 2 to 5 business days, depending on your location.

Yes, If you want your custom specifications made in bulk, send us the details. A representative will reach out to you as soon as possible to discuss the manufacturing arrangements.

All our prismatic batteries come with a three-year full replacement warranty. If there are any issues with one of our cells due to manufacturing or regular use, we will replace the cells for you. For clarification, this does not cover user error that results in damages.

Yes. We ensure that all the products we source are of the highest quality.

Individual battery packs can be put together to custom specifications.  Send over the details, and we will get back to you with a quote and timeline.

We will accept and refund any products in their original condition within two weeks of the purchase date.