I just got mine today, now I can test my 10 AH Li-Ion cells' real capacity. http://www.ebay.com/itm/112336467549
What's the safe cutoff voltage under load for Li-Ions, 3.7V?
This guy gives this tester a thumbs-up: https://syonyk.blogspot.com/2015/10/zb2l3-v20-zhiyu-battery-tester.html
"When you make a thing, a thing that is new, it is so complicated making it that it is bound to be ugly. But those that make it after you, they don’t have to worry about making it. And they can make it pretty, and so everybody can like it when others make it after you."
- Pablo Picasso