Based on this product's specifications, here are some alternatives and similar models
PATONA 1925 battery charger USB
Summary description:
PATONA 1925. Suitable for: Battery charger, Power source type: USB, Power protection features: Overcharge. Product colour: Grey, Orange. Input voltage: 5 V, Input current: 3 A, Output voltage: 8.4 V. Width: 105 mm, Depth: 66 mm, Height: 24 mm. Quantity per pack: 1 pc(s), Cables included: USB