(Large Capacity and Long Lasting) With a reliable capacity of 2 400 WH. By fully charging the main unit once it can charge your smartphone about 255 times a laptop (60 W) about 40 hours a TV (100 W) and a camera about 400 times. We use high quality battery cells to make our battery energy efficient. As a result the life of the battery has been reached over 2 500 cycles. (As of 2021) PSE Approval and Business Rejected: MAXOAK has acquired PSE Approval in accordance with technical standards based on the Electrical Appliance Safety Act. In addition business submitted to the Ministry of Economy and Industry according to the classification of electrical goods. In addition the portable power supply unit has settings such as high temperature protection overvoltage protection low discharge temperature protection overcurrent protection overload protection short circuit protection overcharge voltage protection and more. We do our best to make it safe for you to use (Solar Panel Can be Charged & Powered by Solar Panel) Not only can it be charged with a household outlet but in case of emergency it is equipped with a pass-through function that can charge this product through the solar panel and then power it into each electrical product. In case of emergencies if sunlight it can be charged even during a power outage. What's more it is energy-saving and safe to use Versatile Output Ports: The MAXOAK EB240 portable power supply is equipped with 2 AC outputs and 1 DC outputs (4 USB outlets) and a Type-C output (1 piece) and a fan / car refrigerator/rice cooker/induction heater/vacuum cleaner/TV/shredder/mini electric kettle/dryer/DVD/electric blanket/smartphone/laptop/laptop/laptop/cameras. Versatile to use Battery About MAXOAK: Since 2009 MAXOAK started as a manufacturer of battery related products we have carefully produced each item with a philosophy of safety and peace of mind from product development to production. If you have any questions or problems with the product please feel free to contact us