This is a 2000 battery, but the minimum voltage is much lower (like 2.6ish/cell). The chemistry is similar to an 18650 in a pouch. If you discharge it to 7v it will not have full capacity.
This is not a 2000 mah battery . It's like around 850 or close. If you don't think so try it please. I use it all the time with my dji goggles. I bought it cause it was smaller and light weight 3s.