FYI: you can currently get a 30000mAh 65w Baseus power bank for £35 on Amazon : r/SteamDeck
Amazon.com: Baseus Portable Laptop Charger, 30000mAh Power Bank 65W Fast Charging USB C Battery Pack, PD 3.0 7-Port Battery Bank for MacBook, IPad, Dell, HP, Samsung, iPhone 15 14 13, Steam Deck,
Powerbanka Baseus Amblight 65W 30000mAh - NA DIELY či OPRAVU | Aukro
Baseus 65W Power Bank 30000mAh Quick Charging Powerbank Battery For phone Laptop | eBay
Baseus Adaman 65W | Power Bank USB USB-C 65W QC 4.0 PD Huawei SCP 5A Samsung AFC Modrá | Napájení \ PowerBanky \ 20 000mAh Produkty na léto \ PowerBanky \ 20 000mAh
Amazon.com: Baseus Portable Laptop Charger, 30000mAh Power Bank 65W Fast Charging USB C Battery Pack, PD 3.0 7-Port Battery Bank for MacBook, IPad, Dell, HP, Samsung, iPhone 15 14 13, Steam Deck,
Baseus 65W Power Bank 30000mAh PD Quick Charge FCP SCP Powerbank Prenosná externá nabíjačka pre Smartphone Laptop Tablet – kúpiť za nízke ceny v internetovom obchode Joom
Amazon.com: Baseus Portable Laptop Charger, 30000mAh Power Bank 65W Fast Charging USB C Battery Pack, PD 3.0 7-Port Battery Bank for MacBook, IPad, Dell, HP, Samsung, iPhone 15 14 13, Steam Deck,
Baseus 65w Pd Power Bank 30000mah | 30000mah Power Bank Laptop - Baseus Power Bank - Aliexpress