So far, not a single complaint. The only so far were two batteries arrived well below storage voltage and ZEEE promptly replaced those for me. Good run times sells discharge evenly and IR reading on all are about 2-5 ohms depending on my batteries age.You would probably think I'm sponsored but I'm not. I found an affordable battery (at least the smaller ones) and have so far been happy with them. I only have around 2 months with them and varying cycles between them all.I'd absolutely recommend Zeee
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