This phone from Sony has a 3,300 mAh battery. There's no lack of performance, with a 2.2 GHz octa core processor.
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Sony Xperia XA2 32GB 5.2in 23MP SIM-Free Smartphone in Black (Renewed)
OnBuy
(Black) Sony Xperia XA2 Single Sim | 32GB | 4GB RAM