I think you're right, however, 18650 batteries do carry, on average, more energy density per volume and weight.
> but the highest capacity 18650 out there is less than 15Wh and this advertises 77Wh.
10x 2000 mAh 18650 batteries in parallel gives you 20 Ah @ 3.7V.
> So, yeah, pot, kettle, all that.
Totally unnecessary comment but thanks.