This thing discharge at 30A, and cut-off at 5.8v (I had to open the case and adjusted it).
All sounds normal, right? The battery should be ready to be charged after cooling down. But then, my 3800 will only get 2200, and 3300 will only take 1800.......
However, if I use a simple light bulb to discharger furter, my 3800 can charge 4000, and 3300 can charge 3500.