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QC2.0 9v 2:55h 33Wh 8900 mAh (~1:00h - 50%, ~1:30h - 80%)
Assuming real battery capacity is about 8000 mAh
Power bank charging thermal photo
Price: 14$ (Amazon) + ~8$ delievery to Ukraine by npshopping
Charging phones
3250 mAh Umidigi Z2 Pro (MTK-PE)
2658 mAh Apple iPhone Xs
So this power bank is able to charge about two phones with total battery capacity about 6000 mAh