I ordered two sets of 8S 280ah batteries from 2 different suppliers on AliExpress and the first came in on time (6 weeks) with no issues, but the second set ordered in January was lost at sea or something. I eventually received notice that they had been delivered. I opened a dispute and the suppliers “evidence” was a phony document showing departure, customs clearance, cross country travel, “mail center” receipt etc., but I, in fact, had not received them. The online tracking however indicated they were still in transit. AliExpress wasted no time invalidating their ”evidence”, finding in my favor, and refunding my money immediately. I am grateful and gratified that the only argument and grief I got was in my head! So, kudos to AliExpress for their prompt action. My replacement set of batteries will be coming from Amy or Jenny Wu. Any perceived savings is minimal and the wait is just not worth the trouble. Cheers