Uploaded September 2022 | Updated September 2026, 2 weeks ago

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Apart from being an external battery pack, B300S alone can work as a DC power source with individual car outlet, USB-A and USB-C ports. Plus, it's BLUETTI's first battery featuring Temperature Adaptive function, even responsive on chilly days.
Purchase：indiegogo.com/projects/bluetti-ac500-b300s-home-backup-power-station#