The iPhone 6 and 6s don’t have the amazing battery life of their oversized brethren, but this $33 battery case can more than make up the difference. You can even customize it with the included colored frames, which I’ve never seen before on a product like this. [1byone iPhone 6/6s 3100mAh Rainbow Battery Charger Case, $33 with code MPIZRLB9]

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