BLUETTI B300 Expansion Battery | 3,072WhVERSATILE POWER SOURCE Features with a 100W USB C, a 12V 10A car output and a USB A ports, you can use the B300 as a portable power station. FLEXIBLE RECHARGING WAYS The smart MPPT inside of the B300 enables it to recharge quickly through solar power at a 200W maximum loading scale. Moreover, you can also recharge it by wall socket, car charging or lead acid battery. Car charging and lead acid battery charging need to be realized through D050S. Click