Anker is a decent brand and is one of the biggest players in the USB battery market.Why did you choose this over https://www.amazon.com/dp/B09VPHVT2Z
Side note: any battery larger than roughly 27000mAh runs afoul of the FAA "100 Watt-Hour" limit: https://www.faa.gov/sites/faa.gov/f...esources/Airline_passengers_and_batteries.pdf However, note that airlines may allow larger capacity batteries at their discretion (limit: 2). All of these batteries must also be in carry-on luggage.