A 300-watt solar generator is a reliable, portable power source for small devices. Prioritize battery capacity, inverter type, and diverse charging options. Check each product page for other buying options. Manufactured on farms or in facilities that protect the rights and/or health of workers. Answer to Main Query: A 300 watt solar generator is a compact. 300 watt solar generator, 12V battery voltage, charge voltage 10-25V, pure sine wave AC output, applies to diversified loads, can withstand the loads with a large starting current.