Hi Steve,
I have 28 of those IB3600 and out of those 28 I had to trash 6.
After initial test (just 2.5A load) all 28 cells showed capacities over 3600 mAh.
2 month later 6 of them had only 2800 mAh after just sitting on the shelf.
Any idea what happened to them?
Regards,
Marek