After charging all the batteries I ran a constant current test on all batteries with my ZKETech EBC-A10H analyzer. The software is EB tester Software V1.8.5 All battery tests had the same parameter of a constant current draw of 0.6 Amp and a stop test voltage of 2.9V

Results for the eBay battery Device:EBC-A10H Mode:D-CC 0.60A 2.90V Begin Volt:4.246V Cutoff Volt:2.900V Capacity:2778mAh Energy:10.09Wh Avg Volt:3.63V Title:eBay Seller

Here is the iFixit battery data: Device:EBC-A10H Mode:D-CC 0.60A 2.90V Begin Volt:4.326V Cutoff Volt:2.900V Capacity:3055mAh Energy:11.20Wh Avg Volt:3.67V Title:iFixit