Expandable battery
The B300S has a capacity of 3,072 Wh and lasts over 3,500 cycles to the 80% of its original capacity. Plug 6 B300S packs into the AC500 and you'll get a whopping 18,432Wh of power, enough to power your camper, live off the grid, and survive a major power outage.
Responsive even at low temperatures
Waking up your electronics on a frosty day can be time-consuming. But with the self-heating function, B300S will automatically heat the battery to keep it active and smooth.
Note: The self-heating function will not be activated if the ambient temperature is lower than -4℉.
Independent power source
The B300S can be used as a standalone power source because it has versatile outputs - 100W USB-C, 12V/10A car cigarette lighter and 18W USB-A to power smartphones, laptops, fans, lights, refrigerators and more.
