In DIY solar storage and RV off-grid systems, EVE LiFePO4 batteries have become a mainstream choice, especially the EVE MB31 and LF280K 280Ah LiFePO4 battery models, which stand out for their 6000+ cycle life and high energy density.
However, with the surge in demand for EVE LiFePO4 for solar ESS, counterfeit and Grade B cells are rampant in the market. The most common question among users is: "Is my EVE battery really Grade A?" Grade A cells mean the latest production date, meeting capacity standards, and low internal resistance (≤0.25mΩ).
This article will teach you three methods to determine if your EVE LiFePO4 is Grade A, avoiding the trap of "buying a counterfeit" .
Method 1: Purchase from the official EVE store or authorized resellers
EVE sells products through the official store and authorized resellers. Customers can purchase Grade A products through these channels. For example, Selian Lifepo4 is an officially authorized EVE reseller, providing customers with EVE Lifepo4 battery grade A products such as EVE MB56, MB31, and LF280K.
Method 2: QR code verification and traceability
The QR code is the core identifier for EVE Grade A. Scanning the code links to the factory database, displaying production batch and capacity testing information.
Step 1: Download the Lifepo Battery QR scanner.
Step 2: Scan the cell's QR code or enter the product serial number.
Step 3: View the report: Grade A should display "Preferred Product," date < 6 months, capacity ≥ nominal, and the report serial number should match the battery's. The image below shows the scan results for Eve MB31.
Method 3: Check the official capacity report
EVE batteries come with an official capacity test report, showing the actual capacity, internal resistance, voltage difference, and other information. Grade A batteries have a measured capacity of ≥314Ah, internal resistance of <0.3mΩ, and voltage difference of <10mV.The image below shows the official storage capacity of the Eve L280K.
By using these three methods, you will be able to select the right Grade A battery for your home, making your home energy system more reliable. If you have any questions, you can discuss them in the comments section or click on selianlifepo4 eve lifepo4 battery to select Grade A inventory.
