@@arduinoprojecttutorial6774 yes, here is the link for reference:www.alibaba.com/product-detail/10000-Cycle-Hithium-Lifepo4-3-2v_1600963299585.html?spm=a2747.product_manager.0.0.2cf771d2NFTL43
How much difference do YOU pay for Grade A and B in to your company? What else is the difference on Grade A & B cells. Why have they been classified as A or B from the producer?