I have been testing a Powergorilla portable charger for a few weeks now, mainly as a phone charger for extended trips rather than a laptop charger, and one thing sticks out – this is not your average power block. The massive 21000mAh capacity battery pack for standard 5V USB devices is absolutely superb, and means you can keep all your gadgets charged on the move, without having to worry about finding a mains power socket at all.
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