Review on Talentcell Rechargeable 72W 100Wh 12V/8300mAh 9V/11000mAh 5V/20000mAh Battery Pack: Ideal Power Solution for LED Strip, CCTV Camera, and More! by Jim Young

The description promises 6A @ 12V and I cannot confirm that. The example where this battery pack fails is a telescope mount which draws max 4.5A @ 12V when both motors are running. For a short time it is running but then voltage drops and operations of the telescope stalls.Other battery packs can perform this same task without troubleAlso, I have doubts about the advertised capacity. Usually batteries with a 100Wh capacity costs in the $100 range -- getting one for half price is rare. Hence the doubt. If it provides the 50Wh, capacity it is a useful pack.Other oddities :- same plug used for output & charging means you cannot do both at the same time- the AC-adapter that's included contains some of the charging logic. That makes it difficult to re-use power supplies I already bring with me during travel (astronomy)