It seems to me that after market batteries or old Yuneec batteries are all that's left for us to use in our Q500 series drones. I order a couple of "New" Venom 6000mAh batteries on eBay for what seemed a good price. They arrived today, one is grave-yard-dead and the other has high internal resistance. The seller approved the return of them quickly, so I didn't lose anything. I have ordered a couple of ELEoption 5400mAh thinking that they seem to be available on several web sites and will perhaps be somewhat fresh. It will be a week or two before I get them. I'll try to remember to follow up with a short addition to this post on how they perform. Wish me luck...
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